Oseltamivir phosphate can be taken with powdered milk. Oseltamivir phosphate is an antiviral medication that is used in the treatment of influenza. The drug insert for oseltamivir specifies that oseltamivir phosphate can be taken with food or separately. Some patients have experienced gastrointestinal adverse reactions when taking oseltamivir phosphate. Milk powder is generally processed from milk, and some foreign studies have shown that milk will slow down the rate of absorption of oseltamivir phosphate, but it will not affect the degree of absorption of oseltamivir phosphate or its metabolic process. Therefore, for some patients who are intolerant to oseltamivir due to gastrointestinal side effects, if they need to take oseltamivir as prescribed by the doctor, they can choose to take it after meals or take it with powdered milk to slow down the absorption of the drug and reduce the stimulation of the gastrointestinal tract. The specific taking of the drug should be under the guidance of a doctor, not blindly use the drug on their own.