Dihydroergotamine injection and Phenadoz rectal

• 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: promethazine
• Dosage Forms: rectal suppository
• Other Brand Names: Phenadoz, Promethegan, Phenergan

Phenadoz is in a group of drugs called phenothiazines (FEEN-oh-THYE-a-zeens). It works by changing the actions of chemicals in your brain. This medicine also acts as an antihistamine. It blocks the effects of the naturally occurring chemical histamine in your body.

Phenadoz is used to treat allergy symptoms such as itching, runny nose, sneezing, itchy or watery eyes, hives, and itchy skin rashes.

Phenadoz also prevents motion sickness, and treats nausea and vomiting or pain after surgery. It is also used as a sedative or sleep aid.

Phenadoz is not for use in treating symptoms of asthma, pneumonia, or other lower respiratory tract infections.

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