Lamisil® Oral Granules
(terbinafine hydrochloride)
Lamisil (terbinafine hydrochloride) Oral Granules 125 mg and 187.5 mg contain the synthetic allylamine antifungal compound, terbinafine hydrochloride.
Chemically, terbinafine hydrochloride is (E)-N-(6,6-dimethyl-2-hepten-4-ynyl)-N-methyl-1-naphthalenemethanamine hydrochloride. It has the empirical formula C21H26ClN with a molecular weight of 327.90, and the following structural formula:
 |
Terbinafine hydrochloride is a white to off-white fine crystalline powder. It is freely soluble in methanol and methylene chloride, soluble in ethanol, and slightly soluble in water.
Each packet of Lamisil Oral Granules contains:
Active Ingredients: terbinafine hydrochloride (equivalent to 125 mg or 187.5 mg terbinafine base)
Inactive Ingredients: basic butylated methacrylate copolymer, colloidal silicon dioxide NF, dibutyl sebacate NF, hypromellose USP, magnesium stearate NF, microcrystalline cellulose NF, nitrogen NF (filling gas), polyethylene glycol NF, sodium lauryl sulfate NF, and sodium starch glycolate NF.
Last updated on RxList: 10/18/2007
Lamisil (terbinafine hydrochloride) Oral Granules is indicated for the treatment of tinea capitis in patients four years of age and older.
Lamisil (terbinafine hydrochloride) Oral Granules should be taken once a day for 6 weeks based upon body weight [See Table 1]. Sprinkle the contents of each packet on a spoonful of pudding or other soft, non-acidic food such as mashed potatoes and swallow the entire spoonful (without chewing); do not use applesauce or fruit-based foods. Take with food. If two packets (250 mg) are required with each dose, either the content of both packets may be sprinkled on one spoonful, or the contents of both packets may be sprinkled on two spoonfuls of non-acidic food as directed above.
Table 1: Dosage by Body Weight
| < 25 kg | 125 mg/day |
| 25-35 kg | 187.5 mg/day |
| > 35 kg | 250 mg/day |
Lamisil (terbinafine hydrochloride) Oral Granules are supplied in cartons containing 14 laminated aluminum packets. Each packet contains approximately either 30 or 45 off-white to yellowish, round, biconvex, film-coated granules, corresponding to a single total dose of 125 mg or 187.5 mg (terbinafine base equivalent) per packet.
Lamisil Oral Granules are manufactured using a tablet compression process, followed by film-coating. The film-coated granules are off-white to yellowish, round, biconvex, each having a diameter of approximately 2.1 mm. Each individual granule contains 4.6875 mg of terbinafine hydrochloride, corresponding to 4.167 mg of terbinafine base.
Lamisil Oral Granules is supplied in cartons containing 14 laminated aluminum packets. Each packet contains approximately either 30 or 45 off-white to yellowish, round, biconvex, film-coated granules, corresponding to a single total dose of 125 mg or 187.5 mg (terbinafine base equivalent) per packet.
Carton of 14 packets....................................NDC 0078-0499-58 Pack of 3 cartons each containing 14 packets (42 packets) ......... NDC 0078-0499-59
Carton of 14 packets....................................NDC 0078-0500-58 Pack of 3 cartons each containing 14 packets (42 packets) .......... NDC 0078-0500-59
Storage conditions of Lamisil Oral Granules 125 mg and 187.5 mg: Store at 25°C (77°F); excursions permitted to 15-30°C (59-86°F) [see USP Controlled Room Temperature].
Manufactured by: Novartis Pharma Stein AG Stein, Switzerland. Distributed by: Novartis Pharmaceuticals Corporation, East Hanover, New Jersey 07936. FDA Rev date: 9/28/2007
Last updated on RxList: 10/18/2007
Because clinical trials are conducted under widely varying conditions, adverse reaction rates in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.
The data described below reflect exposure to terbinafine including 1042 subjects exposed for a median of 42 days. Lamisil Oral Granules was studied in 2 active-controlled trials (n=1042). The population was children aged 4 to 12 years old, 64% male and 36% female, 21% Caucasian, 47% Black, 32% Other. Baseline disease (dermatophyte) characteristics of subjects included 49% having T. tonsurans, 15% T. violaceum, 15% M. canis, 2% M. audouinii, and 1% others. Subjects received once daily, for 6 weeks, oral doses of Lamisil Oral Granules based on body weight: < 25kg 125 mg/day, 25-35kg 187.5 mg/day, and > 35kg 250 mg/day. Adverse events reported in the 2 trials are listed in the table below.
Table 2 Adverse Events ( ≥ 1%) in the Tinea Capitis Trials
| Lamisil® Oral Granules (%) N=1042 |
Griseofulvin oral suspension (%) N=507 |
|
| Nasopharyngitis | 10 | 11 |
| Headache | 7 | 8 |
| Pyrexia | 7 | 6 |
| Cough | 6 | 5 |
| Vomiting | 5 | 5 |
| Upper respiratory tract infection | 5 | 5 |
| Upper abdominal pain | 4 | 4 |
| Diarrhea | 3 | 4 |
| Influenza | 2 | 1 |
| Abdominal pain | 2 | 1 |
| Pharyngolaryngeal pain | 2 | 2 |
| Nausea | 2 | 2 |
| Rash | 2 | 2 |
| Rhinorrhea | 2 | 0 |
| Nasal congestion | 2 | 1 |
| Pruritus | 1 | 1 |
| Toothache | 1 | 1 |
In the pooled pivotal trials, 2% (17/1042) of subjects in the terbinafine group and 2% (6/507) in the griseofulvin group experienced discontinuation of study drug due to adverse events. The most common categories of adverse events causing discontinuation in those exposed to terbinafine included gastrointestinal disorders, skin and subcutaneous disorders, and infections and infestations.
No ophthalmologic safety signal was identified in the pooled pivotal trials. Ophthalmologic assessments included dilated fundoscopy to assess for refractile bodies in the retina, visual acuity assessment, and color vision testing. Of the 940 subjects in the terbinafine group and 471 subjects in the griseofulvin group who completed dilated fundoscopy at post-treatment visits, none of the subjects were found to have refractile bodies of the retina at baseline or end of treatment. For visual acuity, 1% (11/837) of subjects treated with terbinafine and 2% (7/426) of subjects treated with griseofulvin showed a doubling of visual angle after 6 weeks of treatment, while 2% (15/837) treated with terbinafine and 3% (12/426) treated with griseofulvin showed a halving of the visual angle after 6 weeks of treatment. Of subjects who completed yellow-blue color vision assessment for acquired defects, 5% (13/262) of subjects treated with terbinafine and 6% (8/129) of subjects treated with griseofulvin had color confusion on more than one symbol at week 6 than at baseline, while 13% (33/262) of subjects treated with terbinafine and 13% (17/129) of subjects treated with griseofulvin identified more symbols correctly at week 6 than at baseline.
Adverse events reported in three US/Canadian placebo-controlled trials included diarrhea (6%), rashes (6%), dyspepsia (4%), nausea (3%), liver abnormalities (3%), pruritus (3%), taste disturbances (3%), abdominal pain (2%), and urticaria (1%).
Changes in the ocular lens and retina have been reported following the use of Lamisil Tablets in clinical trials in adult subjects with onychomycosis. The clinical significance of these changes is unknown.
The following adverse events have been identified during postapproval use of Lamisil. Because these events are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.
Adverse events reported with oral terbinafine use include: idiosyncratic and symptomatic hepatic injury and, cases of liver failure, some leading to death or liver transplant, serious skin reactions, severe neutropenia, thrombocytopenia, agranulocytosis, pancytopenia, anemia, angioedema and allergic reactions (including anaphylaxis) [see Warnings and PRECAUTIONS].
Psoriasiform eruptions or exacerbation of psoriasis, acute generalized exanthematous pustulosis and precipitation and exacerbation of cutaneous and systemic lupus erythematosus have been reported. Oral terbinafine may cause taste disturbance (including taste loss) which usually recovers within several weeks after discontinuation of the drug. There have been reports of prolonged (greater than one year) taste disturbance. Taste disturbances have been reported to be severe enough to result in decreased food intake leading to significant and unwanted weight loss.
Other adverse reactions which have been reported include malaise, fatigue, arthralgia, myalgia, vomiting, acute pancreatitis, rhabdomyolysis, reduced visual acuity, visual field defects, and hair loss. Adverse events reported spontaneously since the drug was marketed include altered prothrombin time (prolongation and reduction) in patients concomitantly treated with warfarin.
In vivo studies have shown that terbinafine is an inhibitor of the CYP450 2D6 isozyme. Drugs predominantly metabolized by the CYP450 2D6 isozyme include the following drug classes: tricyclic antidepressants, selective serotonin reuptake inhibitors, beta-blockers, antiarrhythmics class 1C (e.g., flecainide and propafenone) and monoamine oxidase inhibitors Type B. Coadministration of Lamisil (terbinafine hydrochloride) Oral Granules should be done with careful monitoring and may require a reduction in dose of the 2D6-metabolized drug. In a study to assess the effects of terbinafine on desipramine in healthy volunteers characterized as normal metabolizers, the administration of terbinafine resulted in a 2-fold increase in Cmax and a 5-fold increase in AUC. In this study, these effects were shown to persist at the last observation at 4 weeks after discontinuation of Lamisil. In studies in healthy subjects characterized as extensive metabolizers of dextromethorphan, terbinafine increases the dextromethorphan/dextrorphan metabolite ratio in urine by 16- to 97-fold, on average. In vitro studies with human liver microsomes showed that terbinafine does not inhibit the metabolism of tolbutamide, ethinylestradiol, ethoxycoumarin, cyclosporine, cisapride and fluvastatine.
In vivo drug-drug interaction studies conducted in healthy volunteer subjects showed that terbinafine does not affect the clearance of antipyrine or digoxin. Terbinafine decreases the clearance of caffeine by 19%. Terbinafine increases the clearance of cyclosporine by 15%.
The influence of terbinafine on the pharmacokinetics of fluconazole, trimethoprim, sulfamethoxazole, zidovudine or theophylline was not considered to be clinically significant.
Co-administration of a single dose of fluconazole (100 mg) with a single dose of terbinafine resulted in a 52% and 69% increase in terbinafine Cmax and AUC, respectively. Fluconazole is an inhibitor of CYP 2C9 and CYP 3A enzymes. Based on this finding, it is likely, that other inhibitors of both CYP2C9 and CYP3A4 (e.g., ketoconazole, amiodarone) may also lead to a substantial increase in the systemic exposure (Cmax and AUC) of terbinafine.
There have been spontaneous reports of increase or decrease in prothrombin times in patients concomitantly taking oral terbinafine and warfarin, however, a causal relationship between Lamisil Tablets and these changes has not been established.
Terbinafine clearance is increased 100% by rifampin, a CYP450 enzyme inducer, and decreased 33% by cimetidine, a CYP450 enzyme inhibitor. Terbinafine clearance is unaffected by cyclosporine. There is no information available from adequate drug-drug interaction studies with the following classes of drugs: oral contraceptives, hormone replacement therapies, hypoglycemics, phenytoins, thiazide diuretics, and calcium channel blockers.
An evaluation of the effect of food on Lamisil (terbinafine hydrochloride) Oral Granules was not conducted. However, in the clinical trials, Lamisil (terbinafine hydrochloride) Oral Granules was administered with food [see DOSAGE AND ADMINISTRATION].
Last updated on RxList: 10/18/2007
Cases of liver failure, some leading to death or liver transplant, have occurred with the use of oral terbinafine during postmarketing experience in individuals with and without pre-existing liver disease. In the majority of liver cases reported, the patients had serious underlying systemic conditions. The severity of hepatic events and/or their outcome may be worse in patients with active or chronic liver disease. Treatment with Lamisil Oral Granules should be discontinued if biochemical or clinical evidence of liver injury develops.
Lamisil Oral Granules is not recommended for patients with chronic or active liver disease. Before prescribing Lamisil Oral Granules, pre-existing liver disease should be assessed. Hepatotoxicity may occur in patients with and without pre-existing liver disease. Pretreatment serum transaminase (ALT and AST) tests are advised for all patients before taking Lamisil Oral Granules. Patients prescribed Lamisil Oral Granules and/or their guardians should be warned to report immediately to their physician any symptoms of persistent nausea, anorexia, fatigue, vomiting, right upper abdominal pain or jaundice, dark urine or pale stools. Patients with these symptoms should discontinue taking Lamisil Oral Granules, and the patient's liver function should be immediately evaluated.
Pretreatment serum transaminase (ALT and AST) tests are advised for all patients before taking Lamisil Oral Granules.
Transient decreases in absolute lymphocyte counts (ALC) have been observed in clinical trials. In placebo-controlled trials, 8/465 subjects receiving Lamisil Tablets (1.7%) and 3/137 subjects receiving placebo (2.2%) had decreases in ALC to below 1000/mm3 on two or more occasions. In patients with known or suspected immunodeficiency, physicians should consider monitoring complete blood counts if treatment will exceed six weeks. Cases of severe neutropenia have been reported; these were reversible upon discontinuation of terbinafine, with or without supportive therapy. If clinical signs and symptoms suggestive of secondary infection occur, a complete blood count should be obtained. If the neutrophil count is ≤ 1,000 cells/mm3, Lamisil Oral Granules should be discontinued and supportive management started.
There have been post marketing reports of serious skin reactions (e.g., Stevens-Johnson Syndrome and toxic epidermal necrolysis) with oral terbinafine. If progressive skin rash occurs, treatment with Lamisil Oral Granules should be discontinued.
In patients with renal impairment (creatinine clearance < 50 mL/ min), the use of Lamisil Oral Granules has not been adequately studied [see CLINICAL PHARMACOLOGY].
During postmarketing experience, precipitation and exacerbation of cutaneous and systemic lupus erythematosus have been reported in patients taking oral terbinafine. Therapy should be discontinued in patients with clinical signs and symptoms suggestive of lupus erythematosus.
In a 28-month oral carcinogenicity study in rats, an increase in the incidence of liver tumors was observed in males at the highest dose tested, 69 mg/kg/day (2x the MRHD based on AUC comparisons of the parent terbinafine); however, even though dose-limiting toxicity was not achieved at the highest tested dose, higher doses were not tested.
The results of a variety of in vitro (mutations in >E. coli and S. typhimurium, DNA repair in rat hepatocytes, mutagenicity in Chinese hamster fibroblasts, chromosome aberration and sister chromatid exchanges in Chinese hamster lung cells), and in vivo (chromosome aberration in Chinese hamsters, micronucleus test in mice) genotoxicity tests gave no evidence of a mutagenic or clastogenic potential. Oral reproduction studies in rats at doses up to 300 mg/kg/day (approximately 12x the MRHD based on BSA comparisons) did not reveal any specific effects on fertility or other reproductive parameters. Intravaginal application of terbinafine hydrochloride at 150 mg/day in pregnant rabbits did not increase the incidence of abortions or premature deliveries nor affect fetal parameters.
Pregnancy Category B.
Oral reproduction studies have been performed in rabbits and rats at doses up to 300 mg/kg/day [12x to 23x the Maximum Recommended Human Dose (MRHD), in rabbits and rats, respectively, based on body surface area (BSA) comparisons] and have revealed no evidence of impaired fertility or harm to the fetus due to terbinafine. There are, however, no adequate and well-controlled studies in pregnant women. Because animal reproduction studies are not always predictive of human response, and because treatment of onychomycosis can be postponed until after pregnancy is completed, it is recommended that Lamisil (terbinafine hydrochloride) Oral Granules not be initiated during pregnancy.
After oral administration, terbinafine is present in breast milk of nursing mothers. The ratio of terbinafine in milk to plasma is 7:1. Treatment with Lamisil Oral Granules is not recommended in nursing mothers.
Lamisil Oral Granules was studied in two randomized, active-controlled trials in which 1021 subjects having a clinical diagnosis of tinea capitis confirmed by KOH microscopy were treated with Lamisil Oral Granules at the labeled dose for up to 6 weeks. The most common adverse events were nasopharyngitis, headache, pyrexia, cough, vomiting, and upper respiratory tract infection [see ADVERSE REACTIONS].
Lamisil Oral Granules has not been studied in geriatric patients.
Last updated on RxList: 10/18/2007
Clinical experience regarding overdose with oral terbinafine is limited. Doses up to 5 grams in adults (20 times the therapeutic daily adult dose) have been reported without inducing serious adverse reactions. The symptoms of overdose included nausea, vomiting, abdominal pain, dizziness, rash, frequent urination, and headache.
Lamisil (terbinafine hydrochloride) Oral Granules is contraindicated in individuals with a history of allergic reaction to oral terbinafine because of the risk of anaphylaxis.
Last updated on RxList: 10/18/2007
Terbinafine is an allylamine antifungal.
The pharmacodynamics of Lamisil ® (terbinafine hydrochloride) Oral Granules is unknown.
The pharmacokinetics in children 4 to 8 years of age with tinea capitis was investigated in a pharmacokinetic study after single and repeated (for 42 days) oral administration of Lamisil Oral Granules (N=16), once daily, using the body weight groups and doses described in section 2.2. The systemic exposure (Cmax and AUC0-24) of terbinafine in children had a relatively high inter-individual variability (ranging from 36 % to 64 %). At steady state the AUC0-24 increased by a mean factor of 1.9 to 2.1 across doses. The mean (SD) effective half-life obtained from the observed accumulation was 26.7 (13.8) hrs and 30.5 (9.3) hrs for the 125 mg and 187.5 mg doses, respectively.
Systemic exposure to terbinafine in the children did not exceed the highest values of the systemic exposure in adults receiving repeated once daily doses of 250 mg Lamisil (terbinafine) Tablets. A population pharmacokinetic evaluation of oral terbinafine that included children 4-12 years of age and adults 18-45 years of age (N=113) found that clearance (CL/F) of terbinafine is dependent on body weight in a nonlinear manner. For a typical child of 25 kg CL/F was predicted to be 19 L/h and for a typical adult of 70 kg body weight it was predicted to be 27 L/h. Over the weight range for pediatric patients included in the analysis (14.1 kg-68 kg), the predicted CL/F ranged between 15.6 - 26.7 L/hr. In plasma, terbinafine is > 99% bound to plasma proteins. Prior to excretion, terbinafine is rapidly and extensively metabolized by at least seven CYP isoenzymes with major contributions from CYP2C9, CYP1A2, CYP3A4, CYP2C8 and CYP2C19. No metabolites have been identified that have antifungal activity similar to terbinafine. Approximately 70% of the administered dose is eliminated in the urine. In adult patients with renal impairment (creatinine clearance ≤ 50 mL/min) or hepatic cirrhosis, the clearance of terbinafine is decreased by approximately 50% compared to normal volunteers [see Warnings and PRECAUTIONS].
Terbinafine, an allylamine antifungal, inhibits biosysnthesis of ergosterol, an essential component of fungal cell membrane, via inhibition of squalene epoxidase enzyme. This results in fungal cell death primarily due to the increased membrane permeability mediated by the accumulation of high concentrations of squalene but not due to ergosterol deficiency. Depending on the concentration of the drug and the fungal species tested in vitro, terbinafine may be fungicidal. However, the clinical significance of in vitro data is unknown.
Lamisil Oral Granules has been studied in tinea capitis [see Clinical Studies].
A wide range of in vivo studies in mice, rats, dogs, and monkeys, and in vitro studies using rat, monkey, and human hepatocytes suggest that peroxisome proliferation in the liver is a rat-specific finding. However, other effects, including increased liver weights and APTT, occurred in dogs and monkeys at doses giving Css trough levels of the parent terbinafine 2-3x those seen in humans at the MRHD. Higher doses were not tested.
In a 52 week oral toxicology study conducted in juvenile maturing dogs, increased heart and liver weights were noted in males and signs of CNS disturbance including 3 cases of single episodes of seizures were noted in females at the highest dose tested, 100 mg/kg/day [19X (males) and 10X (females) the MRHD based on AUC comparisons of the parent terbinafine]. No treatment related findings were noted at 30 mg/kg/day [1.6X (males) and 1.9X (females) the MRHD based on AUC comparisons of the parent terbinafine] in this study.
Two randomized, multinational trials were conducted to investigate the safety and efficacy of Lamisil (terfinafine hydrochloride) Oral Granules in the treatment of subjects 4 to 12 years old with tinea capitis. Lamisil Oral Granules was dosed based on body weight. Griseofulvin dosed at 10-20 mg/kg was used as a comparator. Subjects were dosed for 6 weeks and followed for an additional 4 weeks.
The two trials enrolled 50% of subjects from the U.S. Additionally, among those with positive cultures, 65% and 54% of infections were due to T. tonsurans, and 19% and 17% due to M. canis in Studies 1 and 2, respectively.
The primary efficacy endpoint was the proportion of subjects with complete cure (negative KOH, negative culture and absence of clinical signs of infection) at week 10. Table 3 below lists the efficacy results for Studies 1 and 2 overall and according to the dermatophyte species (T. tonsurans, M. canis, or Other).
Table 3. Primary Efficacy Results by Dermatophyte Species
| Study 1 | Study 2 | |||
| Terbinafine | Griseofulvin | Terbinafine | Griseofulvin | |
| All Dermatophytes | (N=411) | (N=197) | (N=441) | (N=237) |
| Complete Cure | 190 (46.2%) | 67 (34.0%) | 194 (44.0%) | 103 (43.5%) |
| T. tonsurans | (N = 264) | (N = 131) | (N = 243) | (N = 126) |
| Complete Cure | 148 (56.1%) | 45 (34.4%) | 116 (47.7%) | 46 (36.5%) |
| M. canis | (N = 80) | (N = 37) | (N = 72) | (N = 45) |
| Complete Cure | 19 (23.8%) | 13 (35.1%) | 22 (30.6%) | 23 (51.1%) |
| Other* | (N = 67) | (N = 29) | (N = 126) | (N =66 ) |
| Complete Cure | 23 (34.2%) | 9 (31.0%) | 56 (44.4%) | 34 (51.5%) |
| * T. violaceum, M. audouinii, T. mentagrophytes, T. rubrum, M. gypseum, and M. vanbreuseghemii. | ||||
Last updated on RxList: 10/18/2007
See FDA-Approved Patient Labeling
Patients should be informed that Lamisil Oral Granules should be taken once a day with food. Patients should sprinkle the contents of each packet on a spoonful of pudding or other soft, non-acidic food such as mashed potatoes and swallow the entire spoonful; applesauce or fruit-based foods should not be used. The combination of food and granules should be swallowed without chewing. If two packets are required with each dose, the patient may either sprinkle the content of both packets on one spoonful of non-acidic food, or the sprinkle the contents of both packets on two spoonfuls of non-acidic food as directed above.
Pre-treatment serum transaminases (ALT and AST) tests are advised for all patients taking Lamisil Oral Granules.
Patients prescribed Lamisil Oral Granules and/or their guardian should be warned to report immediately to their physician any symptoms of persistent nausea, anorexia, fatigue, vomiting, right upper abdominal pain, jaundice, dark urine or pale stools.
Patients should be informed that if a progressive skin rash occurs, treatment with Lamisil Oral Granules should be discontinued.
Patient Labeling
Lamisil
(terbinafine hydrochloride) Oral Granules
Read the Patient Information that comes with Lamisil Oral Granules before you start using it and each time you get a refill. There may be new information. This leaflet does not take the place of talking with your doctor about your specific scalp condition or treatment.
What is Lamisil Oral Granules?
Lamisil Oral Granules is indicated for the treatment of tinea capitis in patients 4 years of age and older.
What is tinea capitis?
Tinea capitis is a dermatophyte infection of the scalp hair follicles which occurs primarily in children.
How long will it take Lamisil Oral Granules to work?
Treatment time for tinea capitis is 6 weeks.
How are Lamisil Oral Granules taken?
Your physician will prescribe dosing based upon your body weight. One to two packets should be taken each day with a soft non-acidic food, (see patient instructions below). For best results the patient should take the complete course of prescribed medicine. If two packets are required with each dose, you may either sprinkle the content of both packets on one spoonful of non-acidic food, or sprinkle the contents of both packets on two spoonfuls of non-acidic food as directed below.
Patient instructions:
Who should not use Lamisil Oral Granules?
Lamisil Oral Granules should not be taken by anyone allergic to any of its ingredients. Also, Lamisil Oral Granules should not be taken by anyone who has problems with his or her liver or kidneys, or by pregnant or nursing women, unless directed by your doctor. Lamisil Oral Granules has the potential to interact with other drugs, including some commonly prescribed antidepressants, beta-blockers, and antiarrhythmics. Tell your doctor if you are taking any of these or any other prescription or over-the-counter medications.
What are the possible side effects of Lamisil Oral Granules?
Serious side effects on the liver, including death and liver transplant, have occurred in people taking terbinafine. Because of the potential for liver damage, people with liver disease should not take Lamisil Oral Granules.
How do I know if my liver is healthy?
It is recommended that your doctor conduct a blood test to check your liver before prescribing Lamisil Oral Granules. You should watch for symptoms of liver problems while taking Lamisil Oral Granules. If you experience persistent nausea, loss of appetite, fatigue, vomiting, right upper abdominal pain, yellowing of skin, dark urine or pale stools while taking Lamisil Oral Granules, stop taking Lamisil Oral Granules immediately and call your doctor right away.
Are there other possible side effects?
Lamisil Oral Granules may cause some side effects in some people. Some commonly reported side effects in clinical studies were headache, fever, vomiting, upper respiratory tract infection, abdominal pain, diarrhea, nausea, and itching. Because some people have developed serious skin conditions while taking oral Lamisil, stop taking Lamisil Oral Granules and tell your doctor if you develop a rash. Also, tell your doctor if you experience any other side effects.
What else should I know before taking Lamisil Oral Granules?
Decreases in white blood cell count have been reported. If you have problems with your immune system, your doctor may need to monitor your white blood cell count carefully if you take Lamisil Oral Granules for more than 6 weeks. In some cases, Lamisil Oral Granules therapy may need to be discontinued.
Prolonged taste disturbances have been reported, in some instances severe enough to result in decreased food intake leading to significant and unwanted weight loss. Tell your doctor if you notice these symptoms.
How should I store Lamisil Oral Granules?
Store Lamisil Oral Granules at 59-86°F and keep this and all other medications away from children.
Lamisil Oral Granules were prescribed only for you; do NOT share the medication with anyone else.
Last updated on RxList: 10/18/2007
IMPORTANT NOTE: This is a summary and does not contain all possible information about this product. For complete information about this product or your specific health needs, ask your health care professional. Always seek the advice of your health care professional if you have any questions about this product or your medical condition. This information is not intended as individual medical advice and does not substitute for the knowledge and judgment of your health care professional. This information does not contain any assurances that this product is safe, effective, or appropriate for you.
TERBINAFINE GRANULES - ORAL
(ter-BIN-uh-feen)
COMMON BRAND NAME(S): Lamisil
USES: This medication is used to treat a certain type of fungal infection of the scalp (tinea capitis). Terbinafine belongs to a class of drugs known as antifungals. It works by stopping the growth of fungus.
HOW TO USE: Read the Patient Information Leaflet provided by your pharmacist before you start taking terbinafine. If you have any questions, consult your doctor or pharmacist.
Take this medication by mouth with food, usually once a day, or as directed by your doctor. Sprinkle the contents of 1 packet on a spoonful of pudding or other soft food such as mashed potatoes. Do not use acid foods such as fruit or applesauce. Swallow all of the mixture without chewing. If your doctor has directed you to take 2 packets for each dose, then sprinkle the contents of 2 packets onto 1 or 2 spoonfuls of the correct type of soft food, and swallow as directed above.
Dosage is based on your body weight, medical condition, and response to treatment.
This medication work best when the amount of medicine in your body is kept at a constant level. Therefore, take this drug at evenly spaced intervals.
Continue to take this medication until the full prescribed amount is finished. Stopping the medication too early may allow the fungus to continue to grow, which may result in a return of the infection.
Tell your doctor if your condition persists or worsens after 6 weeks.
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor immediately if any of these rare but very serious side effects occur: new signs of infection (e.g., fever, chills, persistent sore throat), vision changes.
This drug has rarely caused very serious (possibly fatal) liver disease. Tell your doctor immediately if you develop symptoms of liver disease, including persistent nausea, loss of appetite, severe stomach/abdominal pain, dark urine, vomiting, yellowing eyes/skin.
A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
If you notice other effects not listed above, contact your doctor or pharmacist.
Contact your doctor for medical advice about side effects. The following numbers do not provide medical advice, but in the US you may report side effects to the Food and Drug Administration (FDA) at 1-800-FDA-1088. In Canada, you may call Health Canada at 1-866-234-2345.
PRECAUTIONS: Before taking terbinafine, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies.
This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: liver disease.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: kidney disease, immune system problems, lupus.
Limit alcoholic beverages. Daily use of alcohol may increase your chance for serious side effects.
During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.
This medication passes into breast milk and may have undesirable effects on a nursing infant. Therefore, breast-feeding is not recommended while using this drug. Consult your doctor before breast-feeding.
Before using this medication, tell your doctor or pharmacist of all prescription and nonprescription/herbal products you may use, especially of: warfarin, drugs affecting liver enzymes that remove terbinafine from your body (such as amiodarone, cimetidine, rifampin, azole antifungals such as fluconazole/ketoconazole), drugs removed from your body by certain liver enzymes (such as tricyclic antidepressants, SSRI antidepressants, beta blockers, cyclosporine, dextromethorphan, drugs to treat heart rhythm problems, monoamine oxidase inhibitors type B such as rasagiline).
OVERDOSE: If overdose is suspected, contact your local poison control center or emergency room immediately. US residents can call the US National Poison Hotline at 1-800-222-1222. Canada residents can call a provincial poison control center.
NOTES: Do not share this medication with others.
This medication has been prescribed for your current condition only. Do not use it later for another infection unless your doctor directs you to do so. A different medication may be necessary in that case.
Laboratory and/or medical tests (e.g., complete blood counts, liver function tests) should be performed before you start terbinafine and periodically during your treatment to check for side effects. Consult your doctor for more details.
MISSED DOSE: If you miss a dose, take it as soon as you remember. If it is near the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not double the dose to catch up.
STORAGE: Store at room temperature at 77 degrees F (25 degrees C) away from light and moisture. Brief storage between 59-86 degrees F (15-30 degrees C) is permitted. Do not store in the bathroom. Keep all medicines away from children and pets.
Information last revised July 2008 Copyright(c) 2008 First DataBank, Inc.
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