Glabellar Frown Lines
Glabellar frown lines are the most common reason for cosmetic injection of botulinum toxin.
- Pregnancy or active nursing
- Preexisting neuromuscular conditions, such as myasthemia gravis or Eaton - Lambert syndrome
Some medications such as aminoglycosides, penicillamine, quinine, and calcium channel blockers can potentiate the effects of botox and should not be used concomitantly.
- adjacent muscle paralysis causing asymmetrical appearance