SPL Set ID: 3c05ab1f-05b0-494a-b640-667e7cf517a1

Propranolol hydrochloride is a synthetic beta-adrenergic receptor blocking agent chemically described as (±)-1-(Isopropylamino)-3-(1-naphthyloxy)-2-propanolol hydrochloride. Its molecular and structural formulae are: C 16 H 21 NO 2 • HCI Propranolol hydrochloride, USP is a stable, white to off-white, crystalline powder which is readily soluble in water and ethanol. Its molecular weight is 295.80. Propranolol hydrochloride tablets, USP are available as 10 mg, 20 mg, 40 mg, 60 mg, or 80 mg tablets for oral administration. The inactive ingredients contained in propranolol hydrochloride tablets are: colloidal silicon dioxide, croscarmellose sodium, magnesium stearate, microcrystalline cellulose, pregelatinized starch (corn) and sodium lauryl sulfate. The 10 mg tablets also contain FD&C Yellow No. 6 Aluminum Lake, the 20 mg tablets also contain FD&C Blue No. 1 Aluminum Lake, the 40 mg tablets also contain FD&C Blue No. 1 Aluminum Lake, FD&C Yellow No. 6 Aluminum Lake and D&C Yellow No. 10 Aluminum Lake, the 60 mg tablets also contain FD&C Blue No. 1 Aluminum Lake and FD&C Red No. 40 Aluminum Lake and the 80 mg tablets also contain FD&C Yellow No. 6 Aluminum Lake and D&C Yellow No. 10 Aluminum Lake. Structural Formula