Kidney disease that needs to be treated with dialysis. You can take this medicine with or without food 30 minutes before sex, depending on the dose. Your doctor or other health care professional can recommend one for you based on these factors, other health conditions you have and any other medicines you take. Visiting a specialist Sometimes ED is a symptom of an underlying condition. These medicines are called PDE5 inhibitors. If Viagra is not covered, you may want to check to see if similar drugs that help treat erectile dysfunction, like Cialis or Levitra, are covered by your health insurance plan.Getting a prescription for Viagra isn’t hard. Erectile dysfunction is common and you don’t need to be a certain age to get a prescription for Viagra. If you’re generally . Viagra is a brand-name prescription drug that’s approved to treat erectile dysfunction (ED). With ED, you’re unable to have or maintain an erection. Viagra is approved for this use . Uses. FAQs. What to consider. Cost. Overdose. Ask your doctor. Q&A. Drug Images. What is Viagra? If you have erectile dysfunction (ED), your doctor may recommend that you .