BOTOX® Injections For Muscle Spasms

BOTOX® Cosmetic, which is made from a type of bacteria known as Clostridium botulinum type A, is used to block nerve signals for treatment of a wide range of conditions. Although primarily known for its cosmetic applications, BOTOX Cosmetic is an effective treatment for many medical conditions, including muscle spasms. BOTOX injections are administered directly into the affected muscle; the injection effectively blocks nerve signals sent to the muscle, keeping it from contracting.

Conditions Treated With BOTOX Injections

The following muscle-spasm-related conditions can be treated with BOTOX injections:

  • Cervical dystonia (neuromuscular disorder affecting the head and neck)
  • Bladder dysfunction (overactive bladder)
  • Blepharospasm (excessive blinking)
  • Strabismus (squints)
  • Achalasia (failure of lower esophageal sphincter to relax)
  • Lazy eye
  • Bruxism
  • Muscle stiffness from upper limb spasticity

BOTOX injections typically begin working a few days after treatment. Depending on the problem being treated, their effect may last for 3 or more months. Results can only be maintained by getting routine follow-up injections. Anyone who is pregnant or breastfeeding should not receive BOTOX injections.

Side Effects Of BOTOX Injections For Muscle Spasms

When BOTOX injections are used to treat muscle spasms, side effects may include the following:

  • Dry mouth
  • Injection-site pain or discomfort
  • Neck pain
  • Tiredness
  • Headache
  • Urinary tract infection (if treatment is for urinary incontinence)
  • Inability to empty bladder (if treatment is for urinary incontinence)
  • Allergic reactions (including itching and rash)

Other allergic reactions can result in dizziness, feeling faint, wheezing and asthma symptoms. Anyone experiencing these reactions should immediately contact a medical professional.

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