SPL Set ID: bbbee85a-e5e2-24ec-e053-2995a90acfd8
1 drug(s) with this SPL Set ID
Tolterodine Tartrate Extended-Release Capsules, USP contain tolterodine tartrate. The active moiety, tolterodine, is a muscarinic receptor antagonist. The chemical name of tolterodine tartrate is (R)-N,N-diisopropyl-3-(2-hydroxy-5-methylphenyl)-3-phenylpropanamine L-hydrogen tartrate. The empirical formula of tolterodine tartrate is C 26 H 37 NO 7 , . Its structure is: Tolterodine tartrate is a white, crystalline powder with a molecular weight of 475.6. The pK a value is 9.87 and the solubility in water is 12 mg/mL. It is soluble in methanol, slightly soluble in ethanol, and practically insoluble in toluene. The partition coefficient (Log D) between n-octanol and water is 1.83 at pH 7.3. Each capsule contains 2 mg or 4 mg of tolterodine tartrate with the following inactive ingredients: ethylcellulose, hypromellose, medium-chain triglycerides, oleic acid, sugar spheres (composed of corn starch and sucrose) and talc. The capsule shell contains FD&C Blue No.1, FD&C Red No.40 (4 mg), gelatin, titanium dioxide and ferric oxide yellow (2 mg). The imprinting ink contains ferrosoferric oxide, potassium hydroxide and shellac. FDA approved dissolution test specifications differ from USP. Chemical Structure