How many units are used for migraines?

Drugs.com

Official answer

by Drugs.com
The recommended total dose of Botox (onabotulinumtoxinA) for chronic migraine prevention is 155 Units administered intramuscularly (into the muscle). This is given as 0.1 mL (5 Units) injections per each site divided across 7 specific head/neck muscle areas, for a total of 31 individual injections.

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