Your primary care doctor should always know what medications you’re taking, including ED pills prescribed by another provider. Police say he admitted to traveling from Jacksonville to Orlando to carry out this plan and confessed to a similar robbery elsewhere in central Florida. If you are taking sildenafil for PAH, take the missed dose as soon as you remember it. These are commonly prescribed for an enlarged prostate or male pattern baldness. As with sildenafil, a high-fat meal or alcohol keep the body from absorbing it as quickly. Generic vs. Insurance: If you plan to use insurance, make sure the online provider accepts it.VIAGRA (sildenafil citrate) is prescription medicine used to treat erectile dysfunction (ED). VIAGRA is not for women or children. Please see Full Prescribing Information and Patient Information. Viagra (sildenafil) is a brand-name prescription drug that’s used to treat erectile dysfunction (ED). Learn about side effects, warnings, dosage, and more.  · Is Viagra prescribed in dosages of mg, mg, or mg? The highest recommended Viagra dose for treating erectile dysfunction (ED) is mg per day, according to the drug’s manufacturer.