Relpax is a headache medicine. It is believed to work by narrowing the blood vessels around the brain. It also reduces substances in the body that can trigger headache pain, nausea, sensitivity to light and sound, and other migraine symptoms.

Relpax is used to treat migraine headaches.

Relpax will only treat a headache that has already begun. It will not prevent headaches or reduce the number of attacks.

Relpax should not be used to treat common tension headaches or any headache that seems to be different from your usual migraine headaches. Use this medication only if your condition has been confirmed by a doctor as migraine headaches.

Relpax may also be used for purposes other than those listed in this medication guide.

Most important: You should not take Relpax if you are allergic to eletriptan, or if you have a history of heart disease, angina (chest pain), blood circulation problems, ischemic bowel disease, severe liver disease, uncontrolled high blood pressure, or history of a heart attack or stroke. Do not use Relpax within 24 hours before or after using another migraine headache medicine, including almotriptan (Axert), frovatriptan (Frova), naratriptan (Amerge), rizatriptan (Maxalt), sumatriptan (Imitrex, Treximet), zolmitriptan (Zomig), or ergot medicine such as dihydroergotamine (D.H.E. 45, Migranal), ergotamine (Ergomar, Ergostat, Cafergot, Ercaf, Wigraine), ergonovine (Ergotrate), methylergonovine (Methergine), or methysergide (Sansert). Do not use Relpax within 72 hours after taking ketoconazole (Nizoral), itraconazole (Sporanox), nefazodone (Serzone), clarithromycin (Biaxin), troleandomycin (Tao), ritonavir (Norvir), or nelfinavir (Viracept).

Before taking this medication, tell your doctor if you have liver disease, high blood pressure, a heart rhythm disorder, coronary artery disease, or risk factors for coronary artery disease (such as diabetes, menopause, smoking, being overweight, having high blood pressure or high cholesterol, having a family history of coronary artery disease, being older than 40 and a man, or being a woman who has had a hysterectomy).

Before taking Relpax, tell your doctor if you are also taking an antidepressant such as citalopram (Celexa), duloxetine (Cymbalta), escitalopram (Lexapro), fluoxetine (Prozac, Sarafem), fluvoxamine (Luvox), paroxetine (Paxil), sertraline (Zoloft), or venlafaxine (Effexor).

Relpax will only treat a headache that has already begun. It will not prevent headaches or reduce the number of attacks.

After taking a Relpax tablet, you must wait two (2) hours before taking a second tablet. Do not take more than 80 mg of eletriptan in 24 hours.