Malegra 120 you mean a product containing sildenafil 120 mg, diabetes by itself does not automatically make sildenafil unsafe. In fact, sildenafil is commonly used for ED in men with diabetes. However, 120 mg is higher than the usual maximum recommended sildenafil dose of 100 mg for ED, so I would not consider it a routine/safe dose to take without medical supervision. Extra caution is needed if a diabetic man has: Heart disease, chest pain, or poorly controlled blood pressure Kidney or liver disease Low blood pressure Diabetic complications affecting the heart or blood vessels Treatment with nitrates (e.g., nitroglycerin) or certain blood-pressure medicines If you tell me the exact ingredients and strength printed on your Malegra 120 package, plus whether you're taking diabetes or heart/BP medicines, I can give you a more specific safety assessment.