Federal law restricts this drug to use by or on the order of a licensed veterinarian. For use in dogs only.
Anipryl is contraindicated in patients with known hypersensitivity to this drug. In humans, selegiline is contraindicated for use with meperidine and this contraindication is often extended to other opioids.
Keep out of reach of children. Not for human use.
Anipryl should not be administered at doses exceeding those recommended (0.5-2.0 mg/kg once daily). In humans, concurrent use of MAO inhibitors with alpha-2 agonists has resulted in extreme fluctuations of blood pressure; therefore, blood pressure monitoring is recommended with concurrent use in dogs. Also, in humans, severe CNS toxicity including death has been reported with the combination of selegiline and tricyclic antidepressants, and selegiline and selective serotonin reuptake inhibitors. Although no such adverse drug interactions were reported in the clinical trials in dogs, it seems prudent to avoid the combination of Anipryl and selective serotonin reuptake inhibitors (e.g., fluoxetine) as well as Anipryl and tricyclic (e.g., clomipramine, amitriptyline, imipramine) or other antidepressants.
At least 14 days should elapse between discontinuation of Anipryl and initiation of treatment with a tricyclic antidepressant or selective serotonin reuptake inhibitor. Because of the long half-life of fluoxetine and its active metabolites, at least 5 weeks should elapse between discontinuation of fluoxetine and initiation of treatment with Anipryl.
Concurrent use of Anipryl with ephedrine or potential MAO inhibitors, such as amitraz, is not recommended.
General: Anipryl is not recommended for other behavior problems such as aggression. In the clinical trials, 3 dogs showed an increase in aggression while on this drug. The safety and efficacy of Anipryl has not been evaluated in dogs with debilitating systemic diseases other than PDH.
The decision to prescribe Anipryl should take into consideration that the MAO system of enzymes is complex and incompletely understood and there is only a limited amount of carefully documented clinical experience with selegiline. Consequently, the full spectrum of possible responses to selegiline may not have been observed in pre-marketing evaluation of the drug. It is advisable, therefore, to observe patients carefully for atypical responses.
Endocrine function testing to confirm pituitary dependent hyperadrenocorticism should be performed prior to Anipryl administration for that condition. Anipryl is not recommended for treatment of patients with hyperadrenocorticism not of pituitary origin such as those due to an adrenal tumor or administration of glucocorticoids. If complications of PDH are evident at the time of diagnosis or emerge during Anipryl therapy, the patient should be evaluated and, if warranted, alternative therapy considered. Concurrent use of Anipryl in conjunction with other therapies of canine PDH has not been evaluated.
Laboratory Tests: No specific laboratory tests are deemed essential for the management of patients on Anipryl, as response to therapy should be based on the history and physical examinations for both PDH and CDS. In clinical trials for PDH, no correlation was found between an individual patient’s clinical response and results of the low dose dexamethasone suppression (LDDS) test. There was no evidence of adrenal insufficiency in these trials.
In the 12 week clinical trial for CDS, a small number of dogs had a drop in hematocrit; some dropping within the normal range and some dropping below 37%. The clinical significance of this is unknown at this time. It is advisable to conduct a thorough physical examination and to consider appropriate laboratory tests to establish hematological and serum biochemical baseline data prior to administration of Anipryl. Reproductive Safety: The safety of Anipryl in breeding, pregnant and lactating bitches, and breeding dogs has not been determined.