- A double-blind, randomized crossover clinical study was carried out in Brazil
- Compare two brands of botulinum toxin type A in treating bleopharospasm and hemifacial spasm
- No difference between BTXA and the other brand in terms of subjective global improvement, response onset, efficacy duration, and incidence and severity of adverse events
References:
- Rieder CR, Schestatsky P, Socal MP, Monte TL, Fricke D, Costa J, et al. A Double-blind, Randomized, Crossover Study of Prosigne versus Botox in Patients with Blepharospasm and Hemifacial Spasm. Clin Neuropharmacol, 2007; 30(1): 39-42.