Levitra and Viagra are both PDE5 inhibitors. Each medicine treats erectile dysfunction (ED) by boosting blood flow to the penis and has been shown to help men obtain firmer, longer-lasting erections during sexual activity.

The key distinction between Levitra and Viagra is the active component in both drugs. Viagra's active ingredient is Sildenafil, while Levitra's is Vardenafil. 

Levitra helps men achieve an erection within 30 minutes and lasts up to 5 hours. While viagra provides an erection within 30 to 60 minutes, the erection lasts up to 4 hours.

One of the most significant distinctions between Levitra and Viagra is the effectiveness of the two drugs when taken with food.

Food slows the absorption of all medications in the system. If you consume a heavy or fatty meal before taking Viagra, the effects will probably be significantly decreased. Levitra, on the other hand, is generally less impacted by meals. Grapefruit is the one notable exception, as it has been shown to drastically diminish the medication's efficacy.