How many doses of tadalafil tablets to buy is good, according to their own symptoms and the severity of the disease to decide, not a generalization. The normal dosage of tadalafil tablets is 20mg a piece, for the first use of most patients, it is recommended that you can use 5-10mg, and according to individual differences can be increased to 20mg, the specific dosage should strictly follow the doctor’s instructions. This product belongs to a kind of prescription western medicine, clinically used mainly for the treatment of erectile dysfunction. Adverse reactions are headache and indigestion, back pain, myalgia, nasopharyngitis, nasal congestion and facial flushing. Hypersensitivity to the product is contraindicated. It should be noted that if you have a need for medication, you need to use it under the supervision of a doctor, do not self-medicate.