About clostridium botulinum neurotoxin a
Botulinum toxin type A
Used for
- Treats certain movement disorders, including cervical dystonia and eyelid spasms.
- Reduces muscle stiffness in adults and some children with neurological conditions.
- Treats chronic drooling and certain facial lines.
Usual adult dose
Varies by condition and injection site; given by a trained clinician, usually every 12–16 weeks.
Usual dose in children
For chronic drooling, doses are based on weight and given by a specialist; other uses depend on age and condition.
Common side effects
- Injection-site pain or bruising
- Muscle weakness
- Dry mouth or swallowing difficulty
- Headache
Important warnings
- Effects can spread beyond the injection area, rarely causing severe swallowing or breathing problems.
- Seek urgent care for trouble breathing, swallowing, or speaking after treatment.
- Not interchangeable unit-for-unit with other botulinum toxin products.
- Avoid treatment during infection at the planned injection site.
Pregnancy
Human pregnancy information is limited; use only when the potential benefit justifies possible risk.
Breastfeeding
It is unknown whether the medicine passes into breast milk; discuss use with a clinician.
Interactions
- Aminoglycoside antibiotics and other drugs affecting nerve-to-muscle signals may increase weakness.
- Muscle relaxants may increase weakness.
- Other botulinum toxin products may increase effects.
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 It may be incomplete or out of date.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.