Author Archives: ViagraSG

How Viagra Works: The Science Behind Sildenafil for ED

Viagra has helped millions of men worldwide. But how does it actually work? The Science Viagra belongs to a class of drugs called PDE5 inhibitors. During arousal, the body releases nitric oxide in the penis, triggering cyclic GMP production. This relaxes blood vessels, allowing increased blood flow. Viagra blocks the PDE5 enzyme that breaks down[…]

Viagra Drug Interactions: Medications You Should Avoid

Before taking Viagra, understand potential drug interactions. Some combinations can be dangerous. Critical: Do NOT Combine Nitrates: The most dangerous interaction. Nitrates (for chest pain) with Viagra can cause a severe, life-threatening drop in blood pressure. Alpha-Blockers: May cause low blood pressure and dizziness. Other ED meds: Do not take with Cialis, Levitra, or other[…]

Viagra and Pregnancy: Effects on Fertility and Conception

Many couples wonder about Viagra and pregnancy. Here is what research says. Does Viagra Affect Male Fertility? Current research shows Viagra does not negatively affect sperm quality or male fertility. Some studies even suggest Sildenafil may improve sperm motility. Viagra During Pregnancy Viagra is classified as Pregnancy Category B. It is not recommended during pregnancy[…]