Tamiflu 75mg capsules contain oseltamivir, an antiviral medication used to treat and prevent influenza A and B (flu). Each pack contains 10 hard capsules manufactured by Roche, designed for oral administration to help reduce flu symptoms and shorten recovery time. The active ingredient oseltamivir works by blocking an enzyme called neuraminidase, which prevents flu viruses from spreading between cells in the body. The capsules should be taken as prescribed by a healthcare provider, typically twice daily for 5 days when treating flu, or once daily when used for prevention. This is a prescription-only medication that should be started within 48 hours of flu symptom onset for maximum effectiveness. Store at room temperature away from moisture and heat.