• P Stamenova, R Koytchev, K Kuhn, C Hanasen, F Horvath, S Ramm, and D Pongratz.
• Zh Nevrol Psikhiatr. 2006 Jan 1; 106 (1): 34-42.

AbstractTo study the efficacy and safety of tolperisone--a centrally acting muscle relaxant with membrane stabilizing activity--in the treatment of stroke-related spasticity. This was a randomized, double-blind, placebo-controlled, multicenter study with parallel groups. Treatment lasted 12 weeks and was started with a titration period of variable length (dose range 300-900 mg tolperisone daily). The degree of spasticity determined on the Ashworth Scale in the most severely affected joint area was denned as primary target parameter. Hundred and twenty patients (43 females, 77 males) in a mean age of 63,3 +/- 10,6 years were recruited and received treatment. In the majority of patients both limbs of each side were affected by the spasticity which on average had been present for 3,3 +/- 4,4 years. A 62% of the patients were treated with a daily dose >600 mg tolperisone. Tolperisone reduced the mean Ashworth Score by a mean of 1,03 +/- 0,71 compared with a mean reduction of 0,47 +/- 0,54 in the placebo group (p<0,0001). A 78,3% of the patients on tolperisone versus 45% of the placebo patients experienced a reduction by at least 1 point on the Ashworth Scale (p<0,0001). Functional and overall assessments of efficacy confirmed superior efficacy of tolperisone. Adverse events occurred less often on active treatment (n=19) than on placebo (n=26) and were mostly of mild-to-moderate intensity. No withdrawals caused by adverse events were reported in the tolperisone group. The findings of the present study demonstrate the efficacy and excellent tolerance of tolperisone in the treatment of spastic hypertonia following cerebral stroke. Study data further suggest that an individual dose titration which may exceed the recommended maximum dose of 450 mg daily results in optimized therapeutic benefit.

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