Bimatoprost, the active constituent present in Careprost is a structural analog of the body’s own prostamides. Bimatoprost is a schedule H drug and belongs to a category of ophthalmic glaucoma agents. It was approved for therapeutic use in 2001. The chemical formula for Bimatoprost is C25H37NO4 and the molecular mass is 415.566g/mol. It is efficiently absorbed via the cornea and produces the same effect as that of prostaglandin F2a. It may take up to two months to observe the complete effect of Careprost medicine. This drug is not stored inside the body. The effect of the ophthalmic form is seen within four hours after administering the dose, while its action lasts for about 12 to 24 hours. The effect of topical ophthalmic form can be observed within two months post first dose application.