Levitra (vardenafil) 10 mg is a common dosage prescribed for treating erectile dysfunction (ED) in men. Buy Levitra 10mg increases blood flow to the penis, helping achieve and maintain an erection by inhibiting the enzyme phosphodiesterase type 5 (PDE5). This inhibition prevents the breakdown of cyclic guanosine monophosphate (cGMP), leading to relaxation of the smooth muscles and increased blood flow.