Eldepryl
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Questions & Answers
Side Effects & Adverse Reactions
Selegiline should not be used at daily doses exceeding those recommended (10 mg/day) because of the risks associated with non-selective inhibition of MAO. (See CLINICAL PHARMACOLOGY.)
The selectivity of selegiline for MAO-B may not be absolute even at the recommended daily dose of 10 mg a day. Rare cases of hypertensive reactions associated with ingestion of tyramine-containing foods have been reported in patients taking the recommended daily dose of selegiline. The selectivity is further diminished with increasing daily doses. The precise dose at which selegiline becomes a non-selective inhibitor of all MAO is unknown, but may be in the range of 30 to 40 mg a day.
Severe CNS toxicity associated with hyperpyrexia and death have been reported with the combination of tricyclic antidepressants and non-selective MAOIs (NARDIL, PARNATE). A similar reaction has been reported for a patient on amitriptyline and ELDEPRYL. Another patient receiving protriptyline and ELDEPRYL developed tremors, agitation, and restlessness followed by unresponsiveness and death two weeks after ELDEPRYL was added. Related adverse events including hypertension, syncope, asystole, diaphoresis, seizures, changes in behavioral and mental status, and muscular rigidity have also been reported in some patients receiving ELDEPRYL and various tricyclic antidepressants.
Serious, sometimes fatal, reactions with signs and symptoms that may include hyperthermia, rigidity, myoclonus, autonomic instability with rapid fluctuations of the vital signs, and mental status changes that include extreme agitation progressing to delirium and coma have been reported with patients receiving a combination of fluoxetine hydrochloride (PROZAC) and non-selective MAOIs. Similar signs have been reported in some patients on the combination of ELDEPRYL (10 mg a day) and selective serotonin re-uptake inhibitors including fluoxetine, sertraline and paroxetine.
Since the mechanisms of these reactions are not fully understood, it seems prudent, in general, to avoid this combination of ELDEPRYL and tricyclic antidepressants as well as ELDEPRYL and selective serotonin re-uptake inhibitors. At least 14 days should elapse between discontinuation of ELDEPRYL and initiation of treatment with a tricyclic antidepressant or selective serotonin re-uptake inhibitors. Because of the long half-lives of fluoxetine and its active metabolite, at least five weeks (perhaps longer, especially if fluoxetine has been prescribed chronically and/or at higher doses) should elapse between discontinuation of fluoxetine and initiation of treatment with ELDEPRYL.
Legal Issues
There is currently no legal information available for this drug.
FDA Safety Alerts
There are currently no FDA safety alerts available for this drug.
Manufacturer Warnings
There is currently no manufacturer warning information available for this drug.
FDA Labeling Changes
There are currently no FDA labeling changes available for this drug.
Uses
ELDEPRYL is indicated as an adjunct in the management of Parkinsonian patients being treated with levodopa/carbidopa who exhibit deterioration in the quality of their response to this therapy. There is no evidence from controlled studies that selegiline has any beneficial effect in the absence of concurrent levodopa therapy.
Evidence supporting this claim was obtained in randomized controlled clinical investigations that compared the effects of added selegiline or placebo in patients receiving levodopa/carbidopa. Selegiline was significantly superior to placebo on all three principal outcome measures employed: change from baseline in daily levodopa/carbidopa dose, the amount of ‘off’ time, and patient self-rating of treatment success. Beneficial effects were also observed on other measures of treatment success (e.g., measures of reduced end of dose akinesia, decreased tremor and sialorrhea, improved speech and dressing ability and improved overall disability as assessed by walking and comparison to previous state).
History
There is currently no drug history available for this drug.
Other Information
ELDEPRYL® (selegiline hydrochloride) is a levorotatory acetylenic derivative of phenethylamine. It is commonly referred to in the clinical and pharmacological literature as l-deprenyl.
The chemical name is: (R)-(-)-N,2-dimethyl-N-2-propynylphenethylamine hydrochloride. It is a white to near white crystalline powder, freely soluble in water, chloroform, and methanol, and has a molecular weight of 223.75. The structural formula is as follows:
Each white, shield-shaped, unscored tablet, debossed on one side with “S” and “5” on the other side. Each tablet contains 5 mg selegiline hydrochloride. Inactive ingredients are anhydrous citric acid, lactose, magnesium stearate, and microcrystalline cellulose.
Sources
Eldepryl Manufacturers
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Somerset Pharmaceuticals Inc.
![Eldepryl (Selegiline Hydrochloride) Tablet [Somerset Pharmaceuticals Inc.]](/wp-content/themes/bootstrap/assets/img/loading2.gif)
Eldepryl | Somerset Pharmaceuticals Inc.
ELDEPRYL is intended for administration to Parkinsonian patients receiving levodopa/carbidopa therapy who demonstrate a deteriorating response to this treatment. The recommended regimen for the administration of ELDEPRYL are 10 mg per day administered as divided doses of 5 mg each taken at breakfast and lunch. There is no evidence that additional benefit will be obtained from the administration of higher doses. Moreover, higher doses should ordinarily be avoided because of the increased risk of side effects.
After two to three days of selegiline treatment, an attempt may be made to reduce the dose of levodopa/carbidopa. A reduction of 10 to 30% was achieved with the typical participant in the domestic placebo controlled trials who was assigned to selegiline treatment. Further reductions of levodopa/carbidopa may be possible during continued selegiline therapy.
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Mylan Specialty
Eldepryl | Mylan Specialty
ELDEPRYL is intended for administration to Parkinsonian patients receiving levodopa/carbidopa therapy who demonstrate a deteriorating response to this treatment. The recommended regimen for the administration of ELDEPRYL is 10 mg per day administered as divided doses of 5 mg each taken at breakfast and lunch. There is no evidence that additional benefit will be obtained from the administration of higher doses. Moreover, higher doses should ordinarily be avoided because of the increased risk of side effects.
After two to three days of selegiline treatment, an attempt may be made to reduce the dose of levodopa/carbidopa. A reduction of 10 to 30% was achieved with the typical participant in the domestic placebo controlled trials who was assigned to selegiline treatment. Further reductions of levodopa/carbidopa may be possible during continued selegiline therapy.
![Eldepryl (Selegiline Hydrochloride) Capsule [Mylan Specialty]](http://dailymed.nlm.nih.gov/dailymed/image.cfm?setid=106429ad-859a-4b29-babf-42cb85f7236e&name=634a0b91-14da-485d-b5a7-2f6de7f5b18b-02.jpg)
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