LOVIR EYE OINT 4.5GMLovir Eye Ointment 4. 5GM is a medicated ophthalmic ointment containing acyclovir, an antiviral agent used to treat viral eye infections such as herpes simplex keratitis. It works by preventing viral replication, reducing infection severity, and promoting healing of the cornea. Uses: Treats herpes simplex keratitis (viral eye infection) Reduces eye pain, redness, and swelling caused by viral infection Supports faster healing of corneal lesions