Place one tablet under the tongue, allowing it to dissolve as directed by your doctor. Do not chew or swallow the tablet. Do not eat or drink while the tablet is dissolving in your mouth.

Dosage is based on your medical condition and response to therapy. This medication works best if it is taken as the first signs of the headache occur. If you wait until the headache has worsened, the medication may not work as well.

This medication usually should be taken only as needed. It is not meant for long-term daily use. The maximum dose is 3 tablets in any 24-hour period and 5 tablets in any 7-day period.

If you suddenly stop using this medication, you may have withdrawal symptoms (such as rebound headaches). This headache may be different from your original headache and may last a few days. To help prevent withdrawal, your doctor may lower your dose slowly. Withdrawal is more likely if you have used ergotamine for a long time (more than a few weeks) or in high doses. Tell your doctor or pharmacist right away if you have withdrawal.

If you are using drugs for migraine attacks on 10 or more days each month, the drugs may actually make your headaches worse (medication overuse headache). Do not use medications more often or for longer than directed. Tell your doctor if you need to use this medication more often, or if the medication is not working as well, or if your headaches get worse.