Dihydroergotamine injection and Zelnorm

• Generic Name: dihydroergotamine
• Dosage Forms: n.a.
• Other Brand Names: DHE. 45, Migranal

Dihydroergotamine is in a group of drugs called ergot alkaloids (ER-got AL-ka-loids). It works by narrowing the blood vessels around the brain and affects blood flow patterns that are associated with certain types of headaches.

Dihydroergotamine injection is used to treat a migraine or cluster headache attack. This medication will only treat a headache that has already begun. It will not prevent headaches or reduce the number of attacks.

Dihydroergotamine injection should not be used to treat common tension headaches or any headache that seems to be different from your usual migraine headaches. Dihydroergotamine is not for daily use.

Dihydroergotamine injection may also be used for purposes not listed in this medication guide.

• Generic Name: tegaserod
• Dosage Forms: tablet
• Other Brand Names: Zelnorm

Zelnorm increases the action of a chemical called serotonin in the intestines. This speeds the movement of stools through the bowels.

Zelnorm is used to treat severe, chronic, irritable bowel syndrome (IBS) in women under 65 years of age who have constipation (and not diarrhea) as their main bowel problem.

Zelnorm may also be used for other purposes not listed in this medication guide.