SPL Set ID: e36fa076-e23b-437f-bbd2-0433ce333175
1 drug(s) with this SPL Set ID
Erlotinib, a kinase inhibitor, is a quinazolinamine with the chemical name N-(3-ethynylphenyl)-6,7-bis(2-methoxyethoxy)‑4-quinazolinamine hydrochloride. Erlotinib tablets contain erlotinib as the hydrochloride salt that has the following structural formula: Erlotinib hydrochloride is off-white to pale yellow powder and has the molecular formula C 22 H 24 ClN 3 O 4 and a molecular weight of 429.90. The molecule has a pK a of about 4.44 at 25°C. Erlotinib hydrochloride is slightly soluble in methanol; practically insoluble in acetonitrile and in acetone. Erlotinib hydrochloride is insoluble over the pH range of 1.2 to 8.0 Erlotinib tablets for oral administration are available in three dosage strengths containing erlotinib hydrochloride (27.3 mg, 109.3 mg and 163.9 mg) equivalent to 25 mg, 100 mg and 150 mg erlotinib and the following inactive ingredients: hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, sodium lauryl sulfate, sodium starch glycolate, talc and titanium dioxide. structure