"Jan. 1, 2013 -- Antidepressant use during pregnancy, long debated for its safety, is linked with a higher overall risk of stillbirth and newborn death. Now, a new study shows that risk may not be warranted.
"After taking maternal char"...
Pexeva Side Effects Center
Medical Editor: John P. Cunha, DO, FACOEP
Pexeva (paroxetine mesylate) is used to treat depression, obsessive-compulsive disorder, anxiety disorders, post-traumatic stress disorder (PTSD), and premenstrual dysphoric disorder (PMDD). It is a selective serotonin reuptake inhibitor (SSRI) type of antidepressant. Common side effects include nausea, drowsiness, dizziness, trouble sleeping, loss of appetite, weakness, dry mouth, sweating, blurred vision, and yawning. Report any worsening depression or suicidal thoughts to your doctor.
The recommended initial dose of Pexeva is 20 mg/day. Pexeva may interact with cold or allergy medicine, sedatives, narcotics, sleeping pills, muscle relaxers, medicine for seizures or anxiety, nonsteroidal anti-inflammatory drugs (NSAIDs), blood thinners, cimetidine, fentanyl, fosamprenavir, linezolid, ritonavir, St. John's wort, tamoxifen, theophylline, tramadol, tryptophan, heart medications, other antidepressants, medicine to treat psychiatric disorders, almotriptan, frovatriptan, sumatriptan, naratripta, rizatriptan, or zolmitriptan. Tell your doctor all medications and supplements you use. Pexeva is not recommended for use during pregnancy. It may harm a fetus. Babies born to mothers who have used this drug during the last 3 months of pregnancy may develop withdrawal symptoms such as feeding/breathing difficulties, seizures, muscle stiffness, or constant crying. If you notice symptoms in your newborn, tell the doctor. Since untreated depression can be a serious condition, do not stop taking this medication unless directed by your doctor. This drug passes into breast milk. Consult your doctor before breastfeeding. Withdrawal symptoms may occur if you suddenly stop taking this medication.
Our Pexeva (paroxetine mesylate) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
What is Patient Information in Detail?
Easy-to-read and understand detailed drug information and pill images for the patient or caregiver from Cerner Multum.
Pexeva in Detail - Patient Information: Side Effects
Get emergency medical help if you have any of these signs of an allergic reaction: skin rash or hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Report any new or worsening symptoms to your doctor, such as: mood or behavior changes, anxiety, panic attacks, trouble sleeping, or if you feel impulsive, irritable, agitated, hostile, aggressive, restless, hyperactive (mentally or physically), more depressed, or have thoughts about suicide or hurting yourself.
Call your doctor at once if you have a serious side effect such as:
- unusual bone pain or tenderness, swelling or bruising;
- easy bruising, unusual bleeding (nose, mouth, vagina, or rectum), coughing up blood;
- agitation, hallucinations, fever, fast heart rate, overactive reflexes, nausea, vomiting, diarrhea, feeling unsteady, loss of coordination, fainting;
- very stiff (rigid) muscles, high fever, sweating, confusion, fast or uneven heartbeats, tremors, overactive reflexes, feeling like you might pass out;
- headache, trouble concentrating, memory problems, weakness, confusion, hallucinations, fainting, seizure, shallow breathing or breathing that stops; or
- severe skin reaction -- fever, sore throat, swelling in your face or tongue, burning in your eyes, skin pain, followed by a red or purple skin rash that spreads (especially in the face or upper body) and causes blistering and peeling.
Less serious side effects may include:
- mild headache, drowsiness, dizziness, sleep problems (insomnia), feeling restless or nervous;
- mild nausea, constipation, weight changes;
- decreased sex drive, impotence, or difficulty having an orgasm; or
- dry mouth, yawning, or ringing in your ears.
Read the entire detailed patient monograph for Pexeva (Paroxetine Mesylate) »
What is Patient Information Overview?
A concise overview of the drug for the patient or caregiver from First DataBank.
Pexeva Overview - Patient Information: Side Effects
Nausea, drowsiness, dizziness, trouble sleeping, loss of appetite, weakness, dry mouth, sweating, blurred vision, and yawning may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.
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 right away if you have any serious side effects, including: shakiness (tremor), restlessness, inability to keep still, decreased interest in sex, changes in sexual ability, numbness/tingling, easy bruising/bleeding, fast/irregular heartbeat, muscle weakness/spasm, seizures.
Get medical help right away if you have any very serious side effects, including: black stools, vomit that looks like coffee grounds.
This medication may increase serotonin and rarely cause a very serious condition called serotonin syndrome/toxicity. The risk increases if you are also taking other drugs that increase serotonin, so tell your doctor or pharmacist of all the drugs you take (see Drug Interactions section). Get medical help right away if you develop some of the following symptoms: fast heartbeat, hallucinations, loss of coordination, severe dizziness, severe nausea/vomiting/diarrhea, twitching muscles, unexplained fever, unusual agitation/restlessness.
Rarely, males may have a painful or prolonged erection lasting 4 or more hours. If this occurs, stop using this drug and get medical help right away, or permanent problems could occur.
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Read the entire patient information overview for Pexeva (Paroxetine Mesylate)»
What is Prescribing information?
The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.
Pexeva FDA Prescribing Information: Side Effects
Associated with Discontinuation of Treatment
Twenty percent (1199/6145) of patients treated with paroxetine in worldwide clinical trials in MDD and 11.8% (64/542), 9.4% (44/469), and 10.7% (79/735) of patients treated with paroxetine in worldwide trials in OCD, PD, and GAD, respectively, discontinued treatment due to an adverse event. The most common events ( ≥ 1%) associated with discontinuation and considered to be drug related (i.e., those events associated with dropout at a rate approximately twice or greater for paroxetine compared to placebo) included the following:
|Asthenia||1 .6%||0.4%||1 .9%||0.4%||-||-||1.8%||0.2%|
|Abnormal Ejaculation1||1 .6%||0%||2.1%||0%||-||-||2.5%||0.5%|
|Where numbers are not provided the incidence of the
adverse events in patients treated with paroxetine was not > 1% or was not
greater than or equal to two times the incidence of placebo.
1 Incidence corrected for gender.
Commonly Observed Adverse Events
Major Depressive Disorder
The most commonly observed adverse events associated with the use of paroxetine (incidence of 5% or greater and incidence for paroxetine at least twice that for placebo, derived from Table 2 below) were: asthenia, sweating, nausea, decreased appetite, somnolence, dizziness, insomnia, tremor, nervousness, ejaculatory disturbance, and other male genital disorders.
Obsessive Compulsive Disorder
The most commonly observed adverse events associated with the use of paroxetine (incidence of 5% or greater and incidence for paroxetine at least twice that of placebo, derived from Table 3 below) were: nausea, dry mouth, decreased appetite, constipation, dizziness, somnolence, tremor, sweating, impotence, and abnormal ejaculation.
The most commonly observed adverse events associated with the use of paroxetine (incidence of 5% or greater and incidence for paroxetine at least twice that for placebo, derived from Table 3 below) were: asthenia, sweating, decreased appetite, libido decreased, tremor, abnormal ejaculation, female genital disorders, and impotence.
Generalized Anxiety Disorder
The most commonly observed adverse events associated with the use of paroxetine (incidence of 5% or greater and incidence for paroxetine at least twice that for placebo, derived from Table 4) were: asthenia, infection, constipation, decreased appetite, dry mouth, nausea, libido decreased, somnolence, tremor, sweating, and abnormal ejaculation.
Incidence in Controlled Clinical Trials
The prescriber should be aware that the figures in the tables following cannot be used to predict the incidence of side effects in the course of usual medical practice where patient characteristics and other factors differ from those that prevailed in the clinical trials. Similarly, the cited frequencies cannot be compared with figures obtained from other clinical investigations involving different treatments, uses, and investigators. The cited figures, however, do provide the prescribing physician with some basis for estimating the relative contribution of drug and nondrug factors to the side effect incidence rate in the populations studied.
Major Depressive Disorder
Table 2 enumerates adverse events that occurred at an incidence of 1% or more among paroxetine-treated patients who participated in short-term (6-week) placebo-controlled trials in which patients were dosed in a range of 20 to 50 mg/day. Reported adverse events were classified using a standard COSTART-based Dictionary terminology.
TABLE 2: Treatment-Emergent Adverse Experience Incidence
in Placebo-Controlled Clinical Trials for MDD1
|Body System||Preferred Term||Paroxetine
|Body as a Whole||Headache||18%||17%|
|Oropharynx Disorder 2||2%||0%|
|Special Senses||Blurred Vision||4%||1%|
|Urogenital System||Ejaculatory Disturbance 3,4||13%||0%|
|Other Male Genital Disorders 3,5||10%||0%|
|Urination Disorder 6||3%||0%|
|Female Genital Disorders 3,7||2%||0%|
|1 Events reported by at least 1% of patients
treated with paroxetine are included, except the following events which had an
incidence on placebo ≥ paroxetine: abdominal pain, agitation, back pain,
chest pain, CNS stimulation, fever, increased appetite, myoclonus, pharyngitis,
postural hypotension, respiratory disorder (includes mostly “cold symptoms” or
“URI”), trauma, and vomiting.
2 Includes mostly “lump in throat” and “tightness in throat.”
3 Percentage corrected for gender.
4 Mostly “ejaculatory delay.”
5 Includes “anorgasmia,” “erectile difficulties,” “delayed ejaculation/orgasm,” and “sexual dysfunction” and “impotence.”
6 Includes mostly “difficulty with micturition” and “urinary hesitancy.”
7 Includes mostly “anorgasmia” and “difficulty reaching climax/orgasm.”
Obsessive Compulsive Disorder and Panic Disorder
Table 3 enumerates adverse events that occurred at a frequency of 2% or more among OCD patients on paroxetine who participated in placebo-controlled trials of 12-weeks duration in which patients were dosed in a range of 20 to 60 mg/day or among patients with PD on paroxetine who participated in placebo-controlled trials of 10- to 12-weeks duration in which patients were dosed in a range of 10 to 60 mg/day.
TABLE 3: Treatment-Emergent Adverse Experience
Incidence in Placebo-Controlled Clinical Trials for Obsessive Compulsive
Disorder and Panic Disorder1
|Body System||Preferred Term||Paroxetine
|Body as a Whole||Asthenia||22%||14%||14%||5%|
|Special Senses||Abnormal Vision||4%||2%|
|Urogenital System||Abnormal Ejaculation 2||23%||1%||21%||1%|
|Female Genital Disorder 2||3%||0%||9%||1%|
|Urinary Tract Infection||2%||1%||2%||1%|
|1 Events reported by at least 2% of OCD or PD
paroxetine-treated patients are included, except the following events which had
an incidence on placebo ≥ paroxetine [OCD]: abdominal pain, agitation,
anxiety, back pain, cough increased, depression, headache, hyperkinesia,
infection, paresthesia, pharyngitis, respiratory disorder, rhinitis, and
sinusitis. [PD]: abnormal dreams, abnormal vision, chest pain, cough increased,
depersonalization, depression, dysmenorrhea, dyspepsia, flu syndrome, headache,
infection, myalgia, nervousness, palpitation, paresthesia, pharyngitis, rash,
respiratory disorder, sinusitis, taste perversion, trauma, urination impaired,
2 Percentage corrected for gender.
Generalized Anxiety Disorder
Table 4 enumerates adverse events that occurred at a frequency of 2% or more among GAD patients on paroxetine who participated in placebo-controlled trials of 8-weeks duration in which patients were dosed in a range of 10 mg/day to 50 mg/day.
TABLE 4: Treatment-Emergent Adverse Experience Incidence
in Placebo-Controlled Clinical Trials for Generalized Anxiety Disorder1
|Body System||Preferred Term||Paroxetine
|Body as a Whole||Asthenia||14%||6%|
|Respiratory System||Respiratory Disorder||7%||5%|
|Special Senses||Abnormal Vision||2%||1%|
|Urogenital System||Abnormal Ejaculation 2||25%||2%|
|Female Genital Disorder||4%||1%|
|1 Events reported by at least 2% of GAD
patients treated with paroxetine are included, except the following events which
had an incidence on placebo ≥ paroxetine: abdominal pain, back pain,
trauma, dyspepsia, myalgia, and pharyngitis.
2 Percentage corrected for gender.
Dose Dependency of Adverse Events
A comparison of adverse event rates in a fixed-dose study comparing paroxetine 10, 20, 30, and 40 mg/day with placebo in the treatment of MDD revealed a clear dose dependency for some of the more common adverse events associated with paroxetine use, as shown in the following table:
TABLE 5: Treatment-Emergent Adverse Experience
Incidence in a Dose-Comparison Trial in the Treatment of MDD*
|Body System/Preferred Term||Placebo
|Body as a Whole|
|Male Genital Disorders||0.0%||3.8%||8.7%||6.4%||3.7%|
|*Rule for including adverse events in table: incidence at least 5% for one of paroxetine groups and ≥ twice the placebo incidence for at least one paroxetine group.|
In a fixed-dose study comparing placebo and paroxetine 20, 40, and 60 mg in the treatment of OCD, there was no clear relationship between adverse events and the dose of paroxetine to which patients were assigned. No new adverse events were observed in the paroxetine 60 mg dose group compared to any of the other treatment groups.
In a fixed-dose study comparing placebo and paroxetine 10, 20, and 40 mg in the treatment of PD, there was no clear relationship between adverse events and the dose of paroxetine to which patients were assigned, except for asthenia, dry mouth, anxiety, libido decreased, tremor, and abnormal ejaculation. In flexible-dose studies, no new adverse events were observed in patients receiving 60 mg of paroxetine compared to any of the other treatment groups.
In a fixed-dose study comparing placebo and 20 and 40 mg of paroxetine in the treatment of GAD, for most of the adverse events, there was no clear relationship between adverse events and the dose of paroxetine to which patients were assigned, except for the following adverse events: asthenia, constipation, and abnormal ejaculation.
In flexible dose studies, no new adverse events were observed in patients receiving paroxetine 60 mg compared to any of the other treatment groups.
Adaptation to Certain Adverse Events
Over a 4- to 6-week period, there was evidence of adaptation to some adverse events with continued therapy (e.g., nausea and dizziness), but less to other effects (e.g., dry mouth, somnolence, and asthenia).
Male and Female Sexual Dysfunction with SSRIs
Although changes in sexual desire, sexual performance, and sexual satisfaction often occur as manifestations of a psychiatric disorder, they may also be a consequence of pharmacologic treatment. In particular, some evidence suggests that SSRIs can cause such untoward sexual experiences.
Reliable estimates of the incidence and severity of untoward experiences involving sexual desire, performance, and satisfaction are difficult to obtain, however, in part because patients and physicians may be reluctant to discuss them. Accordingly, estimates of the incidence of untoward sexual experience and performance cited in product labeling are likely to underestimate their actual incidence.
In placebo-controlled clinical trials involving more than 3200 patients the ranges for the reported incidence of sexual side effects in males and females with MDD, OCD, PD, social anxiety disorder, GAD, and post traumatic stress disorder (PTSD) are displayed in Table 6.
TABLE 6: Incidence of Sexual Adverse Events in
Controlled Clinical Trials
|Decreased Libido||6% - 15%||0% - 5%|
|Ejaculatory Disturbance||13% - 28%||0% - 2%|
|Impotence||2% -9%||0% -3%|
|Decreased Libido||0% -9%||0% -2%|
|Orgasmic Disturbance||2% -9%||0% -1%|
There are no adequate and well-controlled studies examining sexual dysfunction with paroxetine treatment. Paroxetine treatment has been associated with several cases of priapism. In those cases with a known outcome, patients recovered without sequelae.
While it is difficult to know the precise risk of sexual dysfunction associated with the use of SSRIs, physicians should routinely inquire about such possible side effects.
Weight and Vital Sign Changes
Significant weight loss may be an undesirable result of treatment with paroxetine for some patients but, on average, patients in controlled trials had minimal (about 1 pound) weight loss vs. smaller changes on placebo and active control. No significant changes in vital signs (systolic and diastolic blood pressure, pulse, and temperature) were observed in patients treated with paroxetine in controlled clinical trials.
In an analysis of ECGs obtained in 682 patients treated with paroxetine and 415 patients treated with placebo in controlled clinical trials, no clinically significant changes were seen in the ECGs of either group.
Liver Function Tests
In placebo-controlled clinical trials, patients treated with paroxetine exhibited abnormal values on liver function tests at no greater rate than that seen in placebo-treated patients. In particular, the paroxetine vs. placebo comparisons for alkaline phosphatase, SGOT, SGPT, and bilirubin revealed no differences in the percentage of patients with marked abnormalities.
In pooled clinical trials of immediate-release paroxetine hydrochloride, hallucinations were observed in 22 of 9089 patients receiving drug and 4 of 3187 patients receiving placebo.
Other Events Observed During the Premarketing Evaluation of Paroxetine
During its premarketing assessment in MDD, multiple doses of paroxetine were administered to 6145 patients in phase 2 and 3 studies. The conditions and duration of exposure to paroxetine varied greatly and included (in overlapping categories) open and double-blind studies, uncontrolled and controlled studies, inpatient and outpatient studies, and fixed-dose and titration studies. During premarketing clinical trials in OCD, PD, and GAD, 542, 469, and 735 patients, respectively, received multiple doses of paroxetine. Untoward events associated with this exposure were recorded by clinical investigators using terminology of their own choosing. Consequently, it is not possible to provide a meaningful estimate of the proportion of individuals experiencing adverse events without first grouping similar types of untoward events into a smaller number of standardized event categories.
In the tabulations that follow, reported adverse events were classified using a standard COSTART-based Dictionary terminology. The frequencies presented, therefore, represent the proportion of the 9089 patients exposed to multiple doses of paroxetine who experienced an event of the type cited on at least one occasion while receiving paroxetine. All reported events are included except those already listed in Tables 2 to 4, those reported in terms so general as to be uninformative, and those events where a drug cause was remote.
It is important to emphasize that although the events reported occurred during treatment with paroxetine, they were not necessarily caused by it.
Events are further categorized by body system and listed in order of decreasing frequency according to the following definitions: frequent adverse events are those occurring on one or more occasions in at least 1/100 patients (only those not already listed in the tabulated results from placebo-controlled trials appear in this listing); infrequent adverse events are those occurring in 1/100 to 1/1000 patients; rare events are those occurring in fewer than 1/1000 patients. Events of major clinical importance are also described in the PRECAUTIONS section.
Body as a Whole: infrequent: allergic reaction, chills, face edema, malaise, neck pain; rare: adrenergic syndrome, cellulitis, moniliasis, neck rigidity, pelvic pain, peritonitis, sepsis, ulcer. Cardiovascular System: frequent: hypertension, tachycardia; infrequent: bradycardia, hematoma, hypotension, migraine, postural hypotension, syncope; rare: angina pectoris, arrhythmia nodal, atrial fibrillation, bundle branch block, cerebral ischemia, cerebrovascular accident, congestive heart failure, heart block, low cardiac output, myocardial infarction, myocardial ischemia, pallor, phlebitis, pulmonary embolus, supraventricular extrasystoles, thrombophlebitis, thrombosis, varicose vein, vascular headache, ventricular extrasystoles. Digestive System: infrequent: bruxism, colitis, dysphagia, eructation, gastritis, gastroenteritis, gingivitis, glossitis, increased salivation, liver function tests abnormal, rectal hemorrhage, ulcerative stomatitis; rare: aphthous stomatitis, bloody diarrhea, bulimia, cardiospasm, chlolelithiasis, duodenitis, enteritis, esophagitis, fecal impactions, fecal incontinence, gum hemorrhage, hematemesis, hepatitis, ileitis, ileus, intestinal obstruction, jaundice, melena, mouth ulceration, peptic ulcer, salivary gland enlargement, sialadenitis, stomach ulcer, stomatitis, tongue discoloration, tongue edema, tooth caries. Endocrine System: rare: diabetes mellitus, goiter, hyperthyroidism, hypothyroidism, thyroiditis. Hemic and Lymphatic Systems: infrequent: anemia, leukopenia, lymphadenopathy, purpura; rare: abnormal erythrocytes, basophilia, bleeding time increased, eosinophilia, hypochromic anemia, iron deficiency anemia, leukocytosis, lymphedema, abnormal lymphocytes, lymphocytosis, microcytic anemia, monocytosis, normocytic anemia, thrombocythemia, thrombocytopenia. Metabolic and Nutritional: frequent: weight gain; infrequent: edema, peripheral edema, SGOT increased, SGPT increased, thirst, weight loss; rare: alkaline phosphatase increased, bilirubinemia, BUN increased, creatinine phosphokinase increased, dehydration, gamma globulins increased, gout, hypercalcemia, hypercholesteremia, hyperglycemia, hyperkalemia, hyperphosphatemia, hypocalcemia, hypoglycemia, hypokalemia, hyponatremia, ketosis, lactic dehydrogenase increased, non-protein nitrogen (NPN) increased. Musculoskeletal System: frequent: arthralgia; infrequent: arthritis, arthrosis; rare: bursitis, myositis, osteoporosis, generalized spasm, tenosynovitis, tetany. Nervous System: frequent: emotional lability, vertigo; infrequent: abnormal thinking, alcohol abuse, ataxia, dystonia, dyskinesia, euphoria, hallucinations, hostility, hypertonia, hypesthesia, hypokinesia, incoordination, lack of emotion, libido increased, manic reaction, neurosis, paralysis, paranoid reaction; rare: abnormal gait, akinesia, antisocial reaction, aphasia, choreoathetosis, circumoral paresthesias, convulsion, delirium, delusions, diplopia, drug dependence, dysarthria, extrapyramidal syndrome, fasciculations, grand mal convulsion, hyperalgesia, hysteria, manic-depressive reaction, meningitis, myelitis, neuralgia, neuropathy, nystagmus, peripheral neuritis, psychotic depression, psychosis, reflexes decreased, reflexes increased, stupor, torticollis, trismus, withdrawal syndrome. Respiratory System: infrequent: asthma, bronchitis, dyspnea, epistaxis, hyperventilation, pneumonia, respiratory flu; rare: emphysema, hemoptysis, hiccups, lung fibrosis, pulmonary edema, sputum increased, stridor, voice alteration. Skin and Appendages: frequent: pruritus; infrequent: acne, alopecia, contact dermatitis, dry skin, ecchymosis, eczema, herpes simplex, photosensitivity, urticaria; rare: angioedema, erythema nodosum, erythema multiforme, exfoliative dermatitis, fungal dermatitis, furunculosis, herpes zoster, hirsutism, maculopapular rash, seborrhea, skin discoloration, skin hypertrophy, skin ulcer, sweating decreased, vesiculobullous rash. Special Senses: frequent: tinnitus; infrequent: abnormality of accommodation, conjunctivitis, ear pain, eye pain, keratoconjunctivitis, mydriasis, otitis media; rare: amblyopia, anisocoria, blepharitis, cataract, conjunctival edema, corneal ulcer, deafness, exophthalmos, eye hemorrhage, glaucoma, hyperacusis, night blindness, otitis externa, parosmia, photophobia, ptosis, retinal hemorrhage, taste loss, visual field defect. Urogenital System: infrequent: amenorrhea, breast pain, cystitis, dysuria, hematuria, menorrhagia, nocturia, pyuria, polyuria, urinary incontinence, urinary retention, urinary urgency, vaginitis; rare: abortion, breast atrophy, breast enlargement, endometrial disorder, epididymitis, female lactation, fibrocystic breast, kidney calculus, kidney pain, leukorrhea, mastitis, metrorrhagia, nephritis, oliguria, salpingitis, urethritis, urinary casts, uterine spasm, urolith, vaginal hemorrhage, vaginal moniliasis.
Voluntary reports of adverse events in patients taking paroxetine that have been received since market introduction and not listed above that may have no causal relationship with the drug include acute pancreatitis, elevated liver function tests (the most severe cases were deaths due to liver necrosis, and grossly elevated transaminases associated with severe liver dysfunction), Guillain-Barré syndrome, Stevens-Johnson syndrome, toxic epidermal necrolysis, priapism, syndrome of inappropriate ADH secretion, symptoms suggestive of prolactinemia and galactorrhea; extrapyramidal symptoms which have included akathisia, bradykinesia, cogwheel rigidity, dystonia, hypertonia, oculogyric crisis which has been associated with concomitant use of pimozide, tremor and trismus; status epilepticus, acute renal failure, pulmonary hypertension, allergic alveolitis, anaphylaxis, eclampsia, laryngismus, optic neuritis, porphyria, restless legs syndrome (RLS), ventricular fibrillation, ventricular tachycardia (including torsade de pointes), thrombocytopenia, hemolytic anemia, events related to impaired hematopoiesis (including aplastic anemia, pancytopenia, bone marrow aplasia, and agranulocytosis), and vasculitic syndromes (such as Henoch-Schönlein purpura), and premature births in pregnant women.
There has been a case report of an elevated phenytoin level after 4 weeks of paroxetine and phenytoin coadministration. There has been a case report of severe hypotension when paroxetine was added to chronic metoprolol treatment.
Drug Abuse And Dependence
Controlled Substance Class
Paroxetine is not a controlled substance.
Physical and Psychologic Dependence
Paroxetine has not been systematically studied in animals or humans for its potential for abuse, tolerance, or physical dependence. While the clinical trials did not reveal any tendency for any drug-seeking behavior, these observations were not systematic and it is not possible to predict on the basis of this limited experience the extent to which a CNS-active drug will be misused, diverted, and/or abused once marketed. Consequently, patients should be evaluated carefully for history of drug abuse, and such patients should be observed closely for signs of PEXEVA® (paroxetine mesylate) misuse or abuse (e.g., development of tolerance, incrementations of dose, drug-seeking behavior).
Read the entire FDA prescribing information for Pexeva (Paroxetine Mesylate) »
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