Penegra 100 mg typically starts working within 30 to 60 minutes after ingestion, and its effects can last for up to 4 to 6 hours. It's important to note that sexual stimulation is necessary for the medication to be effective. Penegra 100 mg should not be taken with certain medications, particularly those containing nitrates, as it can cause a sudden drop in blood pressure. Avoid alcohol consumption while taking Penegra, as it may increase the risk of side effects. https://www.genericday.com/penegra-100-mg.html