Botox Side Effects

Serious Botox Side Effects

Some side effects with Botox, while occurring infrequently, are potentially serious and should be reported to your healthcare provider right away. These include but are not limited to:
  • Signs of spreading of the toxin effect (a condition known as botulism), such as:
    • Muscle weakness all over the body
    • Double vision
    • Blurred vision
    • Droopy eyelids
    • Voice changes
    • Speech problems
    • Loss of bladder control
    • Difficulty breathing
    • Difficulty swallowing
  • Signs of an allergic reaction, such as:
    • An unexplained rash
    • Hives
    • Itching
    • Swelling of the mouth or throat
    • Wheezing
    • Difficulty breathing.

Final Thoughts on Botox Side Effects

You may experience some or none of the side effects of Botox listed in this article. Unfortunately, it can be difficult to tell if any particular side effect (such as nausea) is caused by Botox or by other factors.
Therefore, make sure to let your healthcare provider know if you develop any side effects while taking the drug. Also, let your healthcare provider know if you develop something that "just does not seem right." While it may not be a Botox side effect, your healthcare provider will be able to diagnose and treat the problem.
Last reviewed by: Kristi Monson, PharmD
Pregnancy and Pain