Suhagra 25 mg contains sildenafil 25 mg, and dizziness is a known possible side effect. In clinical trials of sildenafil, dizziness occurred in about 3% of people taking 25 mg, compared with about 2% taking placebo. D DailyMed +1 The dizziness can occur because sildenafil can lower Suhagra 25 mg pressure, particularly when combined with alcohol, blood-pressure medicines, or alpha-blockers. D DailyMed If you experience severe dizziness, fainting, chest pain, or sudden vision/hearing changes, seek medical attention promptly. If you're considering Suhagra 25 mg because higher doses (50/100 mg) have caused dizziness, 25 mg may have fewer dose-related effects, but it can still cause dizziness.