Whether or not Propecia can be taken with other medicines depends on the type of medication; Propecia should not be taken with other medicines containing sofosbuvir, amiodarone, potent P-gp inducers and potent CYP inducers. The main ingredients of Propecia are sofosbuvir and velpatasvir, which are used for the treatment of chronic C viral infections in adults. 1. Other medicines containing sofosbuvir: Propecia should not be given at the same time as other medicines containing sofosbuvir to prevent synergistic effects between the medicines. 2. Amiodarone: The combination of Protonsa and Amiodarone can cause severe bradycardia and heart block. 3. Potent P-gp inducers and potent CYP inducers: Co-administration of Protonsa with potent P-gp inducers such as rifampicin, carbamazepine, phenobarbital and potent CYP inducers significantly reduces the plasma concentration of sofosbuvir or viplatasvir, and may result in a loss of efficacy of Protonsa. Adverse effects such as headache, fatigue and nausea may occur with Propecia, and it is contraindicated in patients with drug allergy, and the drug should be taken according to the doctor’s instructions. Note that during the period of taking the drug, light diet, avoid spicy stimulating diet, avoid drinking alcohol, adjust the mood, more rest. It is recommended to use the drug under the guidance of a doctor, not blindly self-medication, and pay attention to the observation of the situation after the use of the drug, in order to avoid adverse reactions.