RELPAX is indicated for the acute treatment of migraine with or without aura in adults.

RELPAX is not intended for the prophylactic therapy of migraine or for use in the management of hemiplegic or basilar migraine (see CONTRAINDICATIONS). Safety and effectiveness of RELPAX Tablets have not been established for cluster headache, which is present in an older, predominantly male population.

In controlled clinical trials, single doses of 20 mg and 40 mg were effective for the acute treatment of migraine in adults. A greater proportion of patients had a response following a 40 mg dose than following a 20 mg dose (see Clinical Studies). Individuals may vary in response to doses of RELPAX Tablets. The choice of dose should therefore be made on an individual basis. An 80 mg dose, although also effective, was associated with an increased incidence of adverse events. Therefore, the maximum recommended single dose is 40 mg.

If after the initial dose, headache improves but then returns, a repeat dose may be beneficial. If a second dose is required, it should be taken at least 2 hours after the initial dose. If the initial dose is ineffective, controlled clinical trials have not shown a benefit of a second dose to treat the same attack. The maximum daily dose should not exceed 80 mg.

The safety of treating an average of more than 3 headaches in a 30-day period has not been established.

CYP3A4 Inhibitors: Eletriptan is metabolized by the CYP3 A4 enzyme. Eletriptan should not be used within at least 72 hours of treatment with the following potent CYP3A4 inhibitors: ketoconazole, itraconazole, nefazodone, troleandomycin, clarithromycin, ritonavir and nelfmavir. Eletriptan should not be used within 72 hours with drugs that have demonstrated potent CYP3A4 inhibition and have this potent effect described in the CONTRAINDICATIONS, WARNINGS or PRECAUTIONS sections of their labeling (see WARNINGS and CLINICAL PHARMACOLOGY: Drug Interactions).

Hepatic Impairment: The drug should not be given to patients with severe hepatic impairment since the effect of severe hepatic impairment on eletriptan metabolism was not evaluated. No dose adjustment is necessary in mild to moderate impairment (see CLINICAL PHARMACOLOGY, CONTRAINDICATIONS and PRECAUTIONS).

RELPAX® Tablets of 20 mg and 40 mg eletriptan (base) as the hydrobromide. RELPAX Tablets are orange, round, convex shaped, film-coated tablets with appropriate debossing.

They are supplied in the following strengths and package configurations:

Relpax Tablets

Store at 25°C (77°F); excursions permitted to 15-30°C (59-86°F) [see USP Controlled Room Temperature].

Distributed by: Roerig, Division of Pfizer Inc, NY, NY 10017. Revised April 2007

Last reviewed on RxList: 6/1/2011
This monograph has been modified to include the generic and brand name in many instances.