Fin-XL 5% Pro Gel (Minoxidil and Finasteride) is generally used long-term, often for several months or years, to maintain hair growth. However, your doctor will determine the exact duration based on the severity of hair loss and your response to treatment. Long-term use may cause side effects such as scalp irritation, itching, dryness, unwanted hair growth, sexual dysfunction, and mental health changes in some individuals. Regular follow-up with a dermatologist is recommended to monitor effectiveness and any side effects. If you experience severe side effects or allergic reactions, stop using it and seek medical advice promptly.