SPL Set ID: fae2df3c-2298-a3e1-e053-6294a90aeac4
1 drug(s) with this SPL Set ID
Guanfacine extended-release tablets, USP are a once-daily, extended-release formulation of guanfacine hydrochloride in a matrix tablet formulation for oral administration only. The chemical designation is N-amidino-2-(2,6-dichlorophenyl) acetamide monohydrochloride. The molecular formula is C9H9Cl2N3O·HCl corresponding to a molecular weight of 282.55 g/mol. The chemical structure is: [spd503-chemical-stucture] Guanfacine hydrochloride, USP is a white to off-white powder, sparingly soluble in water (approximately 1 mg/mL) and alcohol and slightly soluble in acetone. The only organic solvent in which it has relatively high solubility is methanol (>30 mg/mL). Each tablet contains guanfacine hydrochloride, USP equivalent to 1 mg, 2 mg, 3 mg, or 4 mg of guanfacine base. The tablets also contain anhydrous lactose, colloidal silicon dioxide, fumaric acid, hypromellose and magnesium stearate. In addition, the 3-mg and 4-mg tablets also contain FD&C Blue #2 and ferric oxide yellow. Dissolution test pending.