How to avoid purchasing counterfeit erection pills?

To avoid purchasing counterfeit erection drugs, it is recommended to purchase them from reputable pharmacies, medical institutions, or websites. At the same time, pay attention to checking whether the packaging and instructions of the drug are complete and clear, as well as whether the approval number, production date, expiration date, and other information of the drug are complete. In addition, when purchasing drugs, one should also keep the purchase voucher in order to protect their rights when needed.