Generic vs. Also, look into whether expediting is offered. The body takes longer to absorb it after a high-fat meal or alcohol. Those with pre-existing conditions should always consult a healthcare provider before taking new medications or supplements. These small differences affect the way each medication works, such as how quickly it takes effect and wears off, and the possible side effects. It may be difficult to remain firm despite wanting to have sex.Galina Trushina / Getty Images Levitra (vardenafil hydrochloride) is an oral medication taken to treat erectile dysfunction (ED). It’s in the same class of drugs as other popular . It’s no longer sold under the brand name Levitra, but it’s available as generic tablets and orally disintegrating tablets (ODTs). Common side effects of vardenafil include . Lemonaid can prescribe sildenafil (generic Viagra), tadalafil (generic Cialis), and vardenafil (generic Levitra). You can get a prescription online following a quick and easy visit with .