Trifluridine

Trifluridine (also called trifluorothymidine; abbreviation TFT or FTD) is an anti-herpesvirusantiviral drug, used primarily as prescription eyedrops. It was sold under the trade name Viroptic by Glaxo Wellcome, now merged into GlaxoSmithKline. The brand is now wholly owned by King Pharmaceuticals.

Trifluridine was approved for medical use in 1980. It is also a component of the anti-cancer drug trifluridine/tipiracil, which is taken by mouth.