Always inform your doctor about all medications you are currently taking, including over-the-counter drugs, herbal supplements, and recreational drugs. This includes nitrates, often found in medications for chest pain (angina). Combining Viagra with nitrates can cause a dangerous drop in blood pressure.
Certain antibiotics, antifungals, and HIV medications can interact with Viagra, potentially affecting its effectiveness or increasing side effects. Alpha-blockers, used to treat high blood pressure and enlarged prostate, can also interact, sometimes resulting in dizziness or fainting.
Grapefruit juice inhibits enzymes that break down Viagra, leading to increased Viagra levels in your blood and a higher risk of side effects. Avoid grapefruit juice while taking Viagra.
Alcohol can enhance Viagra’s side effects, including dizziness and headaches. Moderate alcohol consumption is advised, if at all.
| Nitrates | Dangerous drop in blood pressure |
| Alpha-blockers | Dizziness, fainting |
| Certain antibiotics/antifungals/HIV medications | Reduced effectiveness or increased side effects |
| Grapefruit juice | Increased Viagra levels in blood |
| Alcohol | Enhanced side effects |
This information is not exhaustive. Consult your doctor or pharmacist for personalized advice on potential drug interactions before taking Viagra or any other medication.
