Your doctor determines your Viagra dosage based on several key factors. They carefully consider your individual needs to ensure safe and effective treatment.
Age and Dosage Adjustment
Generally, older adults may start with a lower dose (25 mg) due to potential age-related changes in liver and kidney function. Younger individuals might tolerate higher doses, but this is always determined on a case-by-case basis.
Health Conditions and Dosage
Certain health conditions influence Viagra dosage. For example, patients with severe liver or kidney disease may require a lower dose to minimize side effects and avoid complications. Similarly, individuals with heart conditions will need careful assessment before Viagra use, potentially requiring a lower starting dose or alternative treatment.
Medications and Interactions
Simultaneous use of certain medications can affect Viagra’s effectiveness and safety. Some medications can increase the risk of side effects or reduce Viagra’s potency. Always inform your doctor about all medications you take, including over-the-counter drugs and herbal supplements. This information is crucial for safe prescription and dosage.
Dosage Table Example
| Mild Liver Impairment | Start with 25mg | Careful monitoring required |
| Severe Liver Impairment | Contraindicated | Viagra may be unsafe |
| Heart Disease (unstable angina) | Usually contraindicated | Requires careful medical evaluation |
| Normal Healthy Adult | 50mg | Dosage can be adjusted based on response |
Remember: This table offers examples. Your doctor will create a personalized treatment plan tailored to your unique circumstances. Always discuss any concerns you have with your healthcare provider.
Medication Interactions
Nitrates and alpha-blockers commonly interact negatively with Viagra. Combining them can cause a dangerous drop in blood pressure. Your physician will evaluate all your medications to prevent this potentially dangerous situation.
