It is common for sildenafil to sometimes underperform. For best results, take it on an empty stomach, as heavy or fatty meals can delay its absorption, and remember that active sexual arousal is necessary for the medication to work. Since the maximum 100 mg dose is not sustaining your erection, underlying factors like stress, performance anxiety, poor blood circulation, or hormonal imbalances may be contributing. Please consult a doctor or urologist. They can safely evaluate your cardiovascular health, suggest helpful lifestyle changes, or recommend alternative treatmentssuch as longer-acting options like tadalafilto improve your duration and performance.