Your doctor determines your safe Viagra dosage based on individual health factors and medications. Never adjust your dosage without consulting them.
Heart Conditions
Pre-existing heart conditions significantly influence Viagra dosage. Patients with angina, uncontrolled high blood pressure, or recently experienced heart attack should exercise extreme caution. Lower starting doses are generally recommended, and in some cases, Viagra may be contraindicated. Always inform your doctor about your cardiac history.
Liver and Kidney Disease
Liver and kidney disease affect how your body processes Viagra. Reduced liver function slows metabolism, potentially leading to increased Viagra levels in the blood. Similarly, impaired kidney function can hinder drug elimination. Dosage adjustments are frequently necessary; your doctor will assess your kidney and liver function tests to determine the appropriate dose.
Other Medications
Interactions with other medications are a major concern. Viagra’s effects can be intensified or altered by various drugs, including nitrates (used to treat angina), alpha-blockers (for high blood pressure or prostate problems), and certain antifungals. Providing your doctor with a complete list of your current medications is crucial for safe and effective treatment.
Age
Older individuals may require lower doses due to age-related changes in liver and kidney function. Your doctor will tailor the dosage to your specific age and overall health.
| Heart disease (angina, high blood pressure, recent heart attack) | Lower starting dose or contraindication |
| Liver disease | Reduced dosage due to slower metabolism |
| Kidney disease | Reduced dosage due to impaired elimination |
| Nitrates | Increased risk of dangerously low blood pressure; usually contraindicated |
| Alpha-blockers | Potential for significant blood pressure drop |
| Certain antifungals | Possible increased Viagra levels |
Always Consult Your Doctor
This information is for educational purposes only and does not substitute professional medical advice. Always consult your doctor before starting Viagra or any other medication. They will perform a thorough evaluation, considering your unique circumstances, to determine the safest and most effective dosage for you.
