From personal experience, consulting with a healthcare professional first is crucial to figure out the best option for you, especially since not all over-the-counter options are regulated. Prescription medications like Viagra, Cialis, and Levitra are commonly recommended and have a track record of effectiveness and safety when used appropriately. They may have side effects like headaches, flushing, or dizziness, so discussing these with a doctor is important. Avoiding mixing these with nitrates or certain other medications is critical, so professional guidance is key.