What type of medication is oseltamivir?

Oseltamivir is categorized as an antiviral medication. It is primarily used in the treatment and prevention of influenza, particularly when administered early in the course of the illness. The mechanism of action for oseltamivir involves inhibiting the enzyme neuraminidase, which is crucial for the release of viral particles from infected cells. By blocking this enzyme, oseltamivir helps to limit the spread of the virus within the respiratory tract, thereby reducing the severity and duration of flu symptoms.

Antibiotics, antifungals, and antihistamines have different mechanisms and indications. Antibiotics are designed to combat bacterial infections, making them ineffective against viruses such as influenza. Antifungal medications target fungal infections, and antihistamines are utilized primarily for managing allergic reactions and symptoms like sneezing and itching. Thus, oseltamivir's specific antiviral properties distinguish it clearly from these other classes of medications.