The interval between two doses of sildenafil is at least 24 hours, in addition, it is recommended that patients follow the doctor’s instructions to use the drug, do not use the drug at their own discretion.
The drug is mainly used to improve male erectile dysfunction. The drug is usually started half an hour to an hour before intercourse, and the blood concentration peaks in about 1 to 2 hours. For patients who do need to take sildenafil, the interval between two doses should be more than 24 hours. The drug may cause adverse reactions such as dizziness and vomiting.
It should be noted that patients are prohibited from taking the drug if they have recently taken nitrate drugs. In order to ensure the safety of the drug, patients should not use the drug at their own discretion, but follow the doctor’s instructions for regular use of the drug.