For pharmaceutical Erectile Dysfunction (ED) management, understand causes like cardiovascular issues, take meds as prescribed (not skipping/doubling), avoid alcohol/sunlight, and manage lifestyle (diet, exercise, stress). Precautions include checking for interactions with other drugs/alcohol, storing properly (cool, dark, locked), and telling your doctor about side effects (headaches, flushing, vision changes) to adjust dose or find alternatives like lifestyle changes or supplements (L-carnitine, DHEA) if appropriate.