About botulinum a toxin
Botulinum toxin type A
Used for
- Treats certain muscle spasms and abnormal muscle tightness.
- Prevents chronic migraine in adults.
- Treats overactive bladder and urinary leakage.
- Reduces frown lines and other facial wrinkles.
Usual adult dose
Dose varies greatly by condition and injection site; specialists determine it. Chronic migraine: 155 units across 31 sites every 12 weeks.
Usual dose in children
For selected conditions, specialists use weight- and condition-specific doses; not for cosmetic use in children.
Common side effects
- Injection-site pain, bruising, or headache.
- Eyelid drooping or temporary muscle weakness.
- Dry eyes or dry mouth.
- Urinary tract infection or difficulty emptying the bladder.
Important warnings
- Can rarely spread beyond the injection area, causing swallowing, breathing, or muscle problems.
- Seek urgent care for trouble breathing or swallowing after treatment.
- Use only for the prescribed condition and dose; products are not interchangeable.
- Extra caution is needed with swallowing or breathing problems and neuromuscular disorders.
Pregnancy
Human pregnancy information is limited; use only when clearly needed after clinician assessment.
Breastfeeding
Information is limited; discuss treatment with a clinician before use.
Interactions
- Aminoglycoside antibiotics and other drugs affecting nerve-to-muscle signals may increase weakness.
- Muscle relaxants may increase weakness.
- Other botulinum toxin products can increase effects and risks.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.