Botulinum toxin type F for treatment of dystonia: long-term experience.

@article{Chen1998BotulinumTT,
  title={Botulinum toxin type F for treatment of dystonia: long-term experience.},
  author={R W Chen and Barbara Illowsky Karp and Mark Hallett},
  journal={Neurology},
  year={1998},
  volume={51 5},
  pages={1494-6}
}
The authors analyzed retrospectively the results of open-labeled botulinum toxin type F (BTXF) treatment for 1 year or longer in 18 BTXA-resistant patients. All patients except one primary nonresponder to BTXA improved initially with BTXF. Most patients continued to respond to BTXF for 1 year or longer, but four patients became resistant to BTXF. BTXF-resistant patients received a higher dose per treatment and a higher cumulative dose than BTXF-responsive patients. BTXF can be used for long… CONTINUE READING