If there is no allergy or other conditions while taking warfarin you can use Nafamivir Eye Drops under doctor’s supervision. Warfarin as a kind of anticoagulant is widely used to prevent thromboembolic diseases, and nafamivir is a class of drugs for treating eyestrain and conjunctival congestion, there is usually no special reaction between the two, and warfarin as an oral drug usually does not affect the structure of the ocular surface, so warfarin and nafamivir ophthalmic solution can be used at the same time. Warfarin can react with a variety of drugs, resulting in enhanced or diminished efficacy, so before using other drugs, you should consult your doctor and choose the relevant drug under the doctor’s guidance. When symptoms such as eyestrain and conjunctival congestion occur, prompt medical treatment is recommended.