Atenolol for Migraines

Migraines are intense headaches that can make a person's life miserable. Often, attacks are so disruptive that a health care practitioner may suggest preventive treatment in addition to abortive medications. Atenolol is one medication that may be used as part of a migraine prevention regimen.

History

• Atenolol (brand name Tenormin) is a beta blocker that was originally developed to treat high blood pressure and irregular heartbeat. It was approved by the U.S. Food and Drug Administration for use in August 1981.

Function

• Atenolol lowers blood pressure and heart rate by blocking the effects of adrenaline on the body's sympathetic nervous system. It is unknown why atenolol aids in migraine prevention, although it has been suggested that it may help prevent blood vessels from dilating, which is believed to be a cause of migraines.

Dosage

• Atenolol is available in 25, 50, 75 and 100 mg tablets. Atenolol should be taken with food or before bedtime.

Side Effects and Warnings

• Side effects of atenolol include diarrhea, dizziness, fatigue, insomnia and depression. Atenolol is not safe for use in pregnant or nursing women. Patients who suffer from low blood pressure or irregular heartbeat should also avoid using atenolol.

Considerations

• Atenolol does not treat migraine pain. It may take several months of use before migraine sufferers notice a decrease in the frequency of their attacks.