Viagra (Sildenafil) is generally safe for use in patients with diabetes if blood sugar is well controlled and there are no significant heart problems. However, it should never be taken with nitrate medicines or certain heart medications, as this may cause a dangerous drop in blood pressure. A doctor should review the patient’s heart condition and current medications before deciding whether it can be continued safely.

Caverta 100 Tablet (Sildenafil) is used to treat erectile dysfunction by improving blood flow to the penis, helping you achieve and maintain a firm erection during sexual stimulation. It improves sexual performance and boosts confidence in men with erectile dysfunction. It is also used in pulmonary hypertension, where it increases blood flow to the lungs and reduces strain on the heart.

If sildenafil citrate 100 mg has not been effective, you should consult your doctor to review the diagnosis, dose, and timing, and to check for underlying causes such as diabetes, hormonal imbalance, or blood flow problems. Your doctor may advise trying alternative treatments such as tadalafil or vardenafil, using vacuum pumps, and making lifestyle changes.