Silditop 100 mg (a brand of Sildenafil 100 mg) can cause indigestion (dyspepsia) or related gastrointestinal discomfort. Here’s a breakdown of how we know this, and what to keep in mind: Why it happens / what contributes to it Sildenafil causes relaxation of smooth muscle and vasodilation (widening of blood vessels). This effect is not limited to penile tissue — the drug can affect vessels & smooth muscle in the digestive tract/oesophagus. For example, relaxation of the lower oesophageal sphincter can lead to acid reflux / dyspepsia. Biomedicus +1 Taking the medication with a heavy or high‑fat meal may delay absorption and contribute to stomach upset. Some sources say high‑fat meals can make effects slower and may increase GI side‑effects. Medz Site What you should do If you experience indigestion or stomach upset after taking Silditop 100 mg, you might try taking it with a light meal (rather than a heavy or fatty one) or taking it on a somewhat emptier stomach, as advised by your doctor. Avoid or reduce alcohol, very fatty/spicy meals, as these may worsen GI side‑effects. If the indigestion is mild, you may monitor it; but if it becomes severe, persists, or is associated with other worrying symptoms (e.g., chest pain, severe abdominal pain, vomiting, blood in stool) — you should stop the medication and consult a doctor. Discuss with your doctor whether a lower dose might be appropriate, or whether you should switch to another medication if the side‐effect burden is too high.