Malegra 50 mg can be associated with back pain in some people, though it’s not extremely common. This medicine contains sildenafil, a drug used for erectile dysfunction, and back pain is listed as one of the possible side effects.  Why Back Pain Might Occur Sildenafil (the active ingredient) can sometimes cause musculoskeletal side effects like muscle aches or back pain. These are generally mild and temporary. Medicines similar to sildenafil (like Viagra) show back pain reported in clinical studies at a small rate. The exact mechanism isn’t fully understood, but it may be related to how the drug affects blood flow or muscle enzymes. ow Common Is It? Back pain is generally not among the most frequent side effects, but it does occur in some users. It tends to be mild and often goes away as your body adjusts to the medication.   When to Be Concerned See a doctor if: the back pain is severe or gets worse, it doesn’t go away after a few days, or it’s accompanied by other symptoms like fever, severe muscle pain, numbness, or problems with urination — though these are much less common.  General Tip Always take Malegra or any sildenafil‑based medicine exactly as prescribed by your doctor. If back pain is bothersome, your doctor might adjust your dose or suggest an alternative.