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Whether you’re one of the 30 million men who have (ED) or not, you’ve almost certainly heard of Viagra. Maybe you even know about other ED medications, like Levitra or Stendra or Cialis, too.
Vardenafil 4 tablets Blister 20 mg Vardenafil , sold under the brand name Levitra among others, is a medication that is used for treating erectile dysfunction . [ 1 ] [ 2 ] It is a PDE5 inhibitor . [ 1 ]
Vardenafil (Levitra) Vardenafil is the active ingredient in Levitra, and the FDA approved it in 2003. It’s similar to sildenafil but lasts longer — research suggests it provides better blood ...
Chemical structure of sildenafil (Viagra), the prototypical PDE5 inhibitor. A phosphodiesterase type 5 inhibitor (PDE5 inhibitor) is a vasodilating drug that works by blocking the degradative action of cGMP-specific phosphodiesterase type 5 (PDE5) on cyclic GMP in the smooth muscle cells lining the blood vessels supplying various tissues.
It’s sold as Levitra and is also available as a generic medication. Avanafil . The active ingredient in Stendra, avanafil is a second-generation medication for ED.
The PDE5 inhibitors sildenafil (Viagra), vardenafil (Levitra) and tadalafil (Cialis) are prescription drugs which are taken by mouth. [10]: 20–21 As of 2018, sildenafil is available in the UK without a prescription. [54]
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