Oral Healthy Sex Enhancement Drugs Vardenafil Levitra Powder 224785-90-4

Oral Healthy Sex Enhancement Drugs Vardenafil Levitra Powder 224785-90-4

Item Standard Result
Appearance Yellow or light yellow crystalline powder Conforms
Melting Point About 182ºC 181.5~182.5ºC
Solubility Conforms Conforms
Identification Positive Positive
Loss on drying ≤0.5% 0.22%
Heavy metais ≤0.002 Conforms
Residue on ignition ≤0.1% 0.06%
Related substsnces ≤0.5% 0.20%
Isotretinoin ≤0.5% 0.42%
Assay 97.0~102.0% 99.70%

Nitrogen (NO) induces the degradation of the resulting cGMP and increases its concentration, relaxes the smooth muscle of arterial vessels, and enhances erectile function.
Three selective phosphodiesterase type 5 (PDE5) inhibitors: sildenafil (Cialis), vardenafil (Eride), and tadalafil are all first-line agents for ED; In terms of efficacy, safety and tolerability, PDE5 inhibitors were not significantly different from apomorphine; Intracavernous injection of prostaglandin E1 is a second-line treatment for ED; Intraurethral administration of prostaglandin E1 is less effective than intracavernous injection of prostaglandin E1. It is concluded that PDE5 inhibitors have the characteristics of effectiveness, good tolerability and safety in the treatment of ED. Apomorphine, intracavernous prostaglandin E1, and intraurethral administration of prostaglandin E1 are also effective and well tolerated.