Refills: See if you can set up automatic refills or order as needed. In some cases, online ED providers accept health insurance. Shipping: Discreet, fast shipping is a must. Both options require valid medical documentation, but some online services only require a health questionnaire to be filled out and reviewed for approval—meaning no face-to-face video interaction is needed. Levitra contains the active ingredient vardenafil and belongs to a class of medications known as a cyclic guanosine monophosphate cGMP -specific phosphodiesterase type 5 PDE5 inhibitors – similar to avanafil Stendra , sildenafil Viagra , and tadalafil Cialis. This increase in blood flow results in a firmer, longer-lasting erection.Cost per tablet Overall cost; Levitra (10 mg) 30 tablets: $ $1, Levitra (20 mg) 6 tablets: $ $ Staxyn (10 mg) 40 tablets: $ $1, Vardenafil ( mg) Vardenafil is FDA approved to treat erectile dysfunction (ED). It works by allowing more blood to flow to your penis and making it easier to achieve an erection. Generic vardenafil is equally as. Vardenafil (Levitra): Uses, Alternatives, Side Effects & More – GoodRx feeling faint or weak, dizziness, blurry vision, feeling confused Erection lasting for more than 4 hours Headache (up to 15%) Flushing (up to 11%) Stuffy nose (up to 9%) Indigestion (up to 4%) —skin rash,, swelling of the face, lips, tongue, or throat.