Independent online pharmacies operate solely on the Internet, either domestically or internationally. While each PDE5 inhibitor differs slightly, they’re very similar in treating erectile dysfunction. Lemonaid can prescribe sildenafil generic Viagra , tadalafil generic Cialis , and vardenafil generic Levitra. Cialis Daily tadalafil : This low-dose Cialis works by increasing blood flow to the penis over time, making it easier to have an erection when aroused. Pain in joints Elevated blood pressure Using this drug may cause serious reactions. That’s not to say there aren’t just as many illegitimate sites.The lowest price on for generic Levitra (vardenafil) 20 mg is $ per tablet for 90 tablets at PharmacyChecker-accredited online pharmacies. You save 99% off the average U.S. pharmacy retail price of $ per tablet for 90 tablets. Vardenafil International Price Comparison Highlight. How much does generic Levitra cost? Generic vardenafil is usually much cheaper than its brand-name options, Staxyn or Levitra. The exact price varies depending on where you buy it. Levitra 20 mg tablet. Medication name. Uses How to use Side effects Precautions Drug interactions Overdose Notes Missed dose Storage Important note. Information last revised August Copyright (c) First Databank, Inc.