Malegra 120 (sildenafil), you should discuss it with a pharmacist or doctor before taking it, especially if you: Take nitrates for chest pain or riociguat — sildenafil can be dangerous with these medicines. N nhs.uk +1 Take alpha-blockers or blood-pressure medicines, because blood pressure can fall too much. D DailyMed Have heart disease, low blood pressure, significant liver/kidney problems, or recently had a heart attack or stroke. N nhs.uk Take several prescription medicines, HIV medicines such as ritonavir, or herbal supplements. N nhs.uk +1 Are considering 120 mg specifically. The usual maximum recommended sildenafil dose for ED is 100 mg, so 120 mg deserves particular discussion with a healthcare professional rather than being self-selected. D DailyMed If you tell me your age and the medicines you take, I can help you identify whether Malegra 120 has any obvious safety concerns.