Yes, Suhagra (which contains sildenafil, the active ingredient also found in Viagra) can potentially cause gastrointestinal issues as side effects. Some people may experience symptoms such as indigestion, heartburn, nausea, and vomiting. These side effects are generally mild to moderate and often transient. However, if you experience severe or persistent gastrointestinal issues while taking Suhagra, it's important to consult your healthcare provider for further evaluation and guidance.