SPL Set ID: 29750221-497e-4747-a9b8-12a0c2236eae

Tizanidine hydrochloride is a central alpha 2 -adrenergic agonist. Tizanidine hydrochloride is almost white to slightly yellow crystalline substance. Tizanidine is slightly soluble in water and methanol. Its chemical name is 5-chloro-4-(2-imidazolin-2-ylamino)-2,1,3-benzothiadiazole monohydrochloride. Tizanidine’s molecular formula is C 9 H 8 ClN 5 S-HCl, its molecular weight is 290.2 and its structural formula is: Tizanidine hydrochloride capsules are supplied as 2, 4, and 6 mg capsules for oral administration. Tizanidine hydrochloride capsules contain the active ingredient, tizanidine hydrochloride (2.29 mg equivalent to 2 mg tizanidine base, 4.58 mg equivalent to 4 mg tizanidine base, and 6.87 mg equivalent to 6 mg tizanidine base), and the inactive ingredients, sugar spheres (composed of sucrose, corn starch and purified water), hypromellose, colloidal silicon dioxide, methacrylic acid and ethyl acrylate copolymer, triethyl citrate and talc. Each empty hard gelatin capsule shell contains gelatin, titanium dioxide, sodium lauryl sulfate and FD&C Blue No. 1. Additionally, 4 mg and 6 mg empty hard gelatin capsule shell contains FD&C Red No. 3. The printing ink contains shellac, potassium hydroxide and iron oxide black. tizanidine-str.jpg