trifluorothymidine /trīflo͝or′ōthī″mədēn/ , an antiviral. ▪ INDICATIONS: It is prescribed in the treatment of keratoconjunctivitis, herpetic keratitis, and other forms of keratitis caused by herpes simplex virus. ▪ CONTRAINDICATIONS: Known hypersensitivity to this drug prohibits its use. Ocular toxicity may result from continued use beyond 21 days. ▪ ADVERSE EFFECTS: Among the more serious adverse effects are hypersensitivity reactions, stromal edema, and increased ocular pressure.