About clostridium botulinum toxin type a
Botulinum toxin type A
Used for
- Temporary improvement of moderate to severe frown lines between the eyebrows in adults
- Treatment of certain muscle spasms, depending on local approval
Usual adult dose
For frown lines, 20 units injected into five muscles; repeat no sooner than every three months. Other uses require specialist dosing.
Common side effects
- Headache
- Eyelid drooping or swelling
- Injection-site pain or bruising
- Dry eyes
Important warnings
- Effects can spread beyond the injection area, rarely causing swallowing or breathing problems.
- Use only by trained clinicians; incorrect injection can cause serious harm.
- Not for people with infection at the planned injection site.
- Avoid use with certain neuromuscular disorders; disclose all medicines and conditions.
Pregnancy
Safety is not established; use during pregnancy is generally avoided unless clearly necessary.
Breastfeeding
Information is limited; discuss risks and benefits with a healthcare professional.
Interactions
- Aminoglycoside antibiotics and other drugs affecting nerve-to-muscle signaling may increase weakness.
- Other botulinum toxin products may increase effects; their doses are not interchangeable.
- Muscle relaxants may increase weakness.
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 It may be incomplete or out of date.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.