"The U.S. Food and Drug Administration today approved Pomalyst (pomalidomide) to treat patients with multiple myeloma whose disease progressed after being treated with other cancer drugs.
Multiple myeloma is a form of blood cancer that p"...
RISK OF RESPIRATORY DEPRESSION, MEDICATION ERRORS, ABUSE POTENTIAL
Fatal respiratory depression has occurred in patients treated with immediate-release transmucosal fentanyl, including following use in opioid non-tolerant patients and improper dosing. The substitution of ABSTRAL for any other fentanyl product may result in fatal overdose.
Due to the risk of respiratory depression, ABSTRAL is contraindicated in the management of acute or postoperative pain including headache/migraine and in opioid non-tolerant patients. [see CONTRAINDICATIONS]
The concomitant use of ABSTRAL with CYP3A4 inhibitors may result in an increase in fentanyl plasma concentrations, and may cause potentially fatal respiratory depression. [see DRUG INTERACTIONS]
Substantial differences exist in the pharmacokinetic profile of ABSTRAL compared to other fentanyl products that result in clinically important differences in the extent of absorption of fentanyl that could result in fatal overdose.
- When prescribing, do not convert patients on a mcg per mcg basis from any other fentanyl products to ABSTRAL.
- When dispensing, do not substitute an ABSTRAL prescription for other fentanyl products.
ABSTRAL contains fentanyl, an opioid agonist and a Schedule II controlled substance, with an abuse liability similar to other opioid analgesics. ABSTRAL can be abused in a manner similar to other opioid agonists, legal or illicit. This should be considered when prescribing or dispensing ABSTRAL in situations where the physician or pharmacist is concerned about an increased risk of misuse, abuse or diversion.
Because of the risk for misuse, abuse, addiction, and overdose, ABSTRAL is available only through a restricted program, required by the Food and Drug Administration, called a Risk Evaluation and Mitigation Strategy (REMS). Under the TIRF (Transmucosal Immediate Release Fentanyl) REMS Access program, outpatients, healthcare professionals who prescribe to outpatients, pharmacies, and distributors must enroll in the program [see WARNINGS AND PRECAUTIONS]. Further information is available at www.TIRFREMSAccess.com or by calling1-866-822-1483.
ABSTRAL (fentanyl) sublingual tablet is a solid formulation of fentanyl citrate, a potent opioid analgesic intended for oral sublingual administration. ABSTRAL is formulated as a white tablet available in six strengths, distinguishable by the shape of the tablet and by de-bossing on the tablet surface.
citrate, USP is N-(1-Phenethyl-4-piperidyl) propionanilide citrate (1:1).
Fentanyl is a highly lipophilic compound (octanol-water partition coefficient
at pH 7.4 is 816:1) that is freely soluble in organic solvents and sparingly
soluble in water (1:40). The molecular weight of the free base is 336.5 (the
citrate salt is 528.6). The pKa of the tertiary nitrogens are 7.3 and 8.4. The
compound has the following structural formula:
All tablet strengths are expressed as the amount of fentanyl free base, e.g., the 100 mcg strength tablet contains 100 mcg of fentanyl free base.
Inactive Ingredients: Croscarmellose sodium, magnesium stearate, mannitol, and silicified microcrystalline cellulose.
What are the possible side effects of fentanyl (Abstral)?
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Stop using fentanyl and call your doctor at once if you have a serious side effect such as:
- slow heart rate, weak or shallow breathing, sighing;
- confusion, extreme fear, unusual thoughts or behavior; or
- feeling like you might pass out.
Less serious side effects may include:
- nausea, dry mouth, constipation;
- headache, drowsiness, tired feeling; or
- white patches...
What are the precautions when taking fentanyl sublingual tablets (Abstral)?
Before taking fentanyl, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: brain disorders (such as head injury, tumor, seizures), breathing problems (such as asthma, sleep apnea, chronic obstructive pulmonary disease-COPD), kidney disease, liver disease, mental/mood disorders (such as confusion, depression), personal or family history of regular use/abuse of drugs/alcohol, stomach/intestinal problems (such as blockage, constipation, diarrhea due to infection, paralytic ileus), difficulty urinating...
Last reviewed on RxList: 6/13/2012
This monograph has been modified to include the generic and brand name in many instances.
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