SPL Set ID: c52fc4ad-7bda-4824-8edf-117d3d8d6b3d

Duloxetine hydrochloride is a selective serotonin and norepinephrine reuptake inhibitor (SNRI) for oral administration. Its chemical designation is (+)-( S )- N -methyl-γ-(1-naphthyloxy)-2-thiophenepropylamine hydrochloride. The empirical formula is C 18 H 19 NOS•HCl, which corresponds to a molecular weight of 333.88. The structural formula is: Duloxetine hydrochloride is a white to off-white crystalline powder, which is slightly soluble in water. Each capsule contains enteric-coated pellets of 20, 30, or 60 mg of duloxetine (equivalent to 22.4, 33.7, or 67.3 mg of duloxetine hydrochloride, respectively). These enteric-coated pellets are designed to prevent degradation of the drug in the acidic environment of the stomach. Inactive ingredients include FD&C Blue No. 2, gelatin, hypromellose, hydroxypropyl cellulose, sodium lauryl sulfate, crosspovidone, sugar spheres, hypromellose phthalates, talc, titanium dioxide, and triethyl citrate. The 20 and 60 mg capsules also contain iron oxide yellow. The printing ink contains shellac, dehydrated alcohol, isopropyl alcohol, butyl alcohol, propylene glycol, strong ammonia solution, potassium hydroxide, black iron oxide (for 20 mg and 30 mg strengths), titanium dioxide and purified water.