Generally, Nizagara (sildenafil) can interact with alcohol and certain heart conditions. Alcohol may reduce effectiveness and increase side effects like dizziness or low blood pressure. Patches or any other delivery methods don’t change this interaction. For dorsum phrenico-oesophageal movement, this is a medical imaging/physiology term related to the diaphragm and esophagus—using sildenafil or alcohol doesn’t typically affect eligibility for imaging, but discuss with a doctor before combining substances.