Isentress Description

400-mg: Pink, oval tablet, marked with "227" on one side.
600-mg: Yellow, oval-shaped, dimensions 19.1 mm x 9.7 mm x 6.1 mm, marked with corporate logo and "242" on one side and plain on the other side.
Each film-coated tablet contains 400 mg of raltegravir (equivalent free phenol).
Each film-coated tablet contains 600 mg of raltegravir (as potassium).
Excipient(s) with known effect: Each 400 mg tablet contains 26.06 mg lactose (as monohydrate).
Each 600 mg tablet contains 5.72 mg lactose (as monohydrate).
Excipients/Inactive Ingredients: 400-mg: Tablet core: Microcrystalline cellulose, Lactose monohydrate, Calcium phosphate dibasic anhydrous, Hypromellose 2208, Poloxamer 407, Sodium stearyl fumarate, Magnesium stearate.
Film-coating: Polyvinyl alcohol, Titanium dioxide, Polyethylene glycol 3350, Talc, Red iron oxide, Black iron oxide.
600-mg: Tablet core: Microcrystalline cellulose, Hypromellose 2910, Magnesium stearate, Croscarmellose sodium.
Film-coating: Lactose monohydrate, Hypromellose 2910, Titanium dioxide, Triacetin, Iron oxide yellow, Black iron oxide.
The tablet may also contain trace amount of carnauba wax.