Safety, tolerability, and efficacy of orally administered cannabinoids in MS.

Killestein, J; Hoogervorst, E L J; Reif, M; Kalkers, N F; Van Loenen, A C; Staats, P G M; Gorter, R W; Uitdehaag, B M J et al. · Neurology · 2002

rct · Level II

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Abstract

The authors conducted a randomized, double-blind, placebo-controlled, twofold crossover study in 16 patients with MS who presented with severe spasticity to investigate safety, tolerability, and efficacy of oral Delta(9)-Tetrahydrocannabinol (THC) and Cannabis sativa plant extract. Both drugs were safe, but adverse events were more common with plant-extract treatment. Compared with placebo, neither THC nor plant-extract treatment reduced spasticity. Both THC and plant-extract treatment worsened the participant's global impression.

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