dystonia

Silperisone HCl (RGH-5002) blocks sodium and calcium channels in cells, decreases excitability and contractility of muscle cells, reduces peripheral tone, and acts as a muscle relaxant and peripheral vasodilator. Silperisone HCl is used to treat recurrent painful myoclonus due to spinal cord injury, abnormal hypertonia due to cerebrovascular disease, dystonia symptoms, cone tension syndrome, multiple sclerosis myospasm and myelitis. silperisone is a sodium channel protein type 2 alpha channel blocker. silperisone is an organosilicon similar to tolperisone, an organosilicon compound with centrally acting muscle relaxant properties.

Tolperisone hydrochloride (Muscalm), a centrally acting muscle relaxant, is used in the therapy of pathologically increased tone of the cross-striated muscle resulted by neurological diseases (damage of the encephalomyelitis, myelopathy, multiple sclerosis, pyramidal tract) and of spastic paralysis and other encephalopathies manifested with muscular dystonia.

Trihexyphenidyl hydrochloride (Benzhexol hydrochloride) is an antiparkinsonian agent of the antimuscarinic class.

Ro 61-8048 is a potent and selective inhibitor of kynurenine hydroxylase with an IC50 value of 37 nM.

Botulinum toxin type B, an antigen-specific exotoxin produced by the anaerobic bacterium Clostridium botulinum, is utilized in the study of neck dystonia. It inhibits the release of Acetylcholine from the neuromuscular junction, causing relaxation paralysis or muscle weakening in the targeted muscle [1].