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ATC code G04 Urologicals is a therapeutic subgroup of the Anatomical Therapeutic Chemical Classification System, a system of alphanumeric codes developed by the World Health Organization (WHO) for the classification of drugs and other medical products.
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.
The four best pills that are currently on the market to treat ED are sildenafil (Viagra), tadalafil , vardenafil (Levitra) and avanafil . Of course, the best treatment for ED is whichever works ...
Tadalafil or generic Cialis can be taken either on demand or as a daily ED medication. It came onto the market a little later than Viagra, first receiving approval as a prescription ED medication ...
Sildenafil, sold under the brand name Viagra among others, is a medication used to treat erectile dysfunction and pulmonary arterial hypertension. [4] [8] It is also sometimes used off-label for the treatment of certain symptoms in secondary Raynaud's phenomenon. [9]
Cialis (tadalafil) has a half-life of 17.5 hours, meaning this drug lasts up to 36 hours after it’s consumed. ... A 2003 study found that a combination of L-arginine and pycnogenol (a type of ...