Zhewitra is a medication containing vardenafil, which is also a phosphodiesterase type 5 (PDE5) inhibitor. Like other medications in this class, such as Sildenafil (found in Suhagra) and Tadalafil (found in Tazzle), vardenafil is primarily used to treat erectile dysfunction in men. Individuals with known allergies or sensitivities to medications should take similar precautions before using Zhewitra as they would with other medications containing PDE5 inhibitors.