Fildena 150 mg (sildenafil citrate) due to age-related changes in cardiovascular, kidney, and liver function, which can affect how the drug works and its potential side effects. Key situations when caution is advised include: Cardiovascular conditions: Older adults with heart disease, angina, arrhythmias, or history of heart attack or stroke should use Fildena only under strict medical supervision. Sildenafil can lower blood pressure, which may trigger dizziness, fainting, or heart complications. Concurrent use of nitrates or certain medications: Nitrate Fildena 150 mg (for chest pain) and some alpha-blockers can dangerously interact with sildenafil, causing a severe drop in blood pressure. Kidney or liver impairment: Reduced kidney or liver function slows the metabolism and excretion of sildenafil, increasing the risk of side effects such as headache, flushing, or vision changes. Dose adjustment or careful monitoring may be needed. Other health issues common in older adults: Uncontrolled hypertension, hypotension, severe anemia, or retinitis pigmentosa require extra caution. Any history of strokes, priapism (prolonged erection), or bleeding disorders warrants medical evaluation before taking the medication. Starting high doses: For adults above 65, starting with a lower dose (like 25 mg or 50 mg) is generally safer. Jumping straight to 150 mg increases the risk of adverse effects.