Patients taking indinavir, saquinavir, atazanavir or other potent CYP3A4 inhibitors such as clarithromycin, ketoconazole mg daily, or itraconazole mg daily should not exceed a dose of LEVITRA 2. Need help locating one? When vasodilators are used in combination, an additive effect on blood pressure may be anticipated. But you also deserve to do that safely. If the headaches continue, let your doctor know Common vardenafil side-effects these affect fewer than 1 in 10 men What can I do if I experience this?• branded and generic Viagra • branded, generic, and daily generic Cialis • Stendra: medical professional support: /5 stars: A+: Roman • $$80 per dose of Cialis • $8-$44 per dose.  · 86% average discount Hypertension 74% average discount Urinary Tract Infection 67% average discount Based on the average user savings between January . Viagra and Levitra are both brand-name drugs. Generic forms of both drugs are available. Brand-name medications usually cost more than generics.