Botox (generic: onabotulinumtoxinA) injection is a prescription medication used to treat several conditions ranging from urine leakage, chronic migraines, muscle stiffness, eyelid spasms, and severe underarm sweating in adults. Botox is also used to temporarily improve the look of moderate to severe frown lines in adults.

Botox is a toxin produced by bacteria. It belongs to a class of drugs called neurotoxins, which relax muscle by decreasing nerve signals to muscle.

This medication comes in an injectable form and is injected into the muscle by a healthcare professional.

Common side effects of Botox include difficulty breathing and swallowing, dry mouth, and pain at the injection site.