Generic name: sildenafil (oral) [ sil-DEN-a-fil ] Brand names: Revatio, Viagra. Drug classes: Agents for pulmonary hypertension, Impotence agents. Medically reviewed by .This information is reviewed by a licensed practitioner who will assess your eligibility for the medication. Talk with your healthcare provider about your sex life and desired use. When taken at the correct time and paired with sexual stimulation, the erection lasts long enough for successful intercourse. Both medications are generic now and can be found at discounted rates, making them more accessible to the public than ever before. This is important for your overall health and safety, as certain medications can negatively interact with each other or cause existing conditions to worsen. Some platforms have a digital pharmacy that ships the medication to your home, while others send an electronic prescription to your local pharmacy. Levitra vardenafil : This medication is taken one hour before sex and can last up to 24 hours. · a light-headed feeling, like you might pass out. Common sildenafil side effects may include: flushing (warmth, redness, or tingly feeling); headache, dizziness; heartburn, nausea, or upset stomach. abnormal vision (blurred vision, changes in color vision) runny or stuffy nose, nosebleeds; sleep problems (insomnia); or. Dosage. The dose of Cialis you need will depend on whether you’re taking it daily or as needed. Daily doses are often between and 5 milligrams (mg). The as-needed dose is usually 10 mg but can range from 5–20 mg. The typicaldose of Viagra is 50 mg. However, the dosage can range from 25– mg.  · The most promising supplement for boosting testosterone, according to Dr. Desai, is ashwagandha. A study in the American Journal of Men’s Health examined overweight men, ages 40 to 70, with.The information provided is for educational purposes only and is not intended to replace discussions with a healthcare provider. Stendra avanafil : This is an as-needed medication taken 30 minutes before sex and can last up to six hours. Some services offer a subscription option where they’ll send your medications every month at a discount. However, others work on a cash-pay basis and don’t partner with insurance companies. That’s not to say there aren’t just as many illegitimate sites.