oseltamivir + rimantadine

**Oseltamivir + rimantadine** is a combination therapy consisting of two antiviral drugs with complementary mechanisms of action, used primarily for the treatment and prevention of influenza A virus infections. Oseltamivir is a neuraminidase inhibitor that blocks the release of new virions from infected cells, thereby inhibiting the spread of infection. Rimantadine is an adamantane derivative that inhibits the M2 ion channel protein of influenza A viruses, blocking virus uncoating and early-stage replication. Studies in both animals and human volunteers show that this combination may produce a synergistic antiviral effect, leading to enhanced efficacy and a reduced risk of resistance compared to monotherapy. Combination therapy is generally well tolerated, with no significant pharmacokinetic interactions or safety concerns at recommended dosages.