The safe amount of Penegra 100 mg is generally up to 100 mg once per day, and only if a doctor has prescribed that dose for you. How much is considered safe Maximum daily dose: For most men, the maximum recommended dose of sildenafil (the active ingredient in Penegra) is 100 mg in 24 hours, taken as one tablet. [web_122][web_126] Going above 100 mg per day increases the risk of serious side effects (low blood pressure, priapism, heart‑related issues, etc.). [web_118][web_119][web_125] Starting dose guidance: Many doctors start men with 50 mg (Penegra 50 mg) and then move to 100 mg only Penegra 100 mg needed and tolerated. [web_119][web_122][web_126] How to use it safely Take Penegra 100 mg about 30–60 minutes before sex, not more than once per day, and avoid alcohol or heavy fatty meals, which can worsen side effects or delay absorption. [web_118][web_124][web_125][web_126] It is not safe if you have severe heart or liver disease, very low blood pressure, recent stroke or heart attack, or if you take nitrates, so always confirm with a doctor before using Penegra 100 mg. [web_118][web_119][web_125] If you tell your age and any heart or blood‑pressure issues, a doctor (not this assistant) can best decide whether 100 mg is appropriate for you or if a lower dose is safer.