Cenforce 130 mg contains sildenafil, a PDE5 inhibitor used to treat erectile dysfunction (ED). It improves erections by helping increase blood flow to the *****, but it does not permanently change blood circulation. Here is how it works: ***** stimulation triggers nerve signals During arousal, nerves in the ***** release nitric oxide (NO). Nitric oxide increases a chemical called cGMP cGMP relaxes the smooth muscles in penile blood vessels, allowing more blood to flow into the erectile tissue. Sildenafil blocks PDE5 PDE5 is an enzyme that normally breaks down cGMP. By slowing cGMP breakdown, sildenafil helps maintain the relaxed blood vessel state longer. More blood enters the ***** This supports achieving and maintaining an erection when *****ly stimulated. A few important points about Cenforce 130 mg: The effect depends on ***** arousal; it will not cause an erection by itself. A 130 mg sildenafil dose is higher than the commonly recommended maximum dose of 100 mg for ED, so it may increase the risk of side effects such as headache, flushing, dizziness, low blood pressure, and vision changes. It does not repair nerve damage or cure the underlying cause of ED. Avoid sildenafil if you use nitrate medicines (such as nitroglycerin) or riociguat, because the combination can cause a dangerous drop in blood pressure.