The dosage of Vigora 50 mg (which contains sildenafil, commonly used for erectile dysfunction) should be adjusted only under the guidance of a healthcare professional. You may need to adjust the dosage based on various factors such as: Effectiveness: If the 50 mg dosage is not providing sufficient results, your healthcare provider may suggest increasing the dose, typically up to a maximum of 100 mg. However, adjustments should only be made after discussing it with your doctor. Side Effects: If you experience significant side effects, such as headache, dizziness, flushing, nausea, or vision changes, you might need a lower dosage. Your doctor will decide the best course of action based on your symptoms. Medical Conditions: If you have other health issues like liver or kidney disease, or if you're taking medications that interact with sildenafil, your doctor may adjust the dose to avoid complications. Frequency of Use: Vigora 50 mg is usually taken on an as-needed basis, about 30-60 minutes before sexual activity. If you're using it more frequently than recommended (more than once per day), or if you feel the need for more frequent dosages, you should consult your healthcare provider. Important: Never adjust the dosage without consulting your doctor, as incorrect usage can lead to serious side effects or reduced effectiveness. Your healthcare provider will assess your health, current medication, and response to treatment to determine the appropriate dosage for you.