Montylline-25 Tablet is a medicine used to treat depression by helping improve mood and reduce anxiety. It works by restoring the natural balance of certain brain chemicals that affect emotions. This helps relieve sadness, improves mental well-being, and makes daily life easier to manage. Montylline-25 Tablet is normally taken before bedtime because it can make you sleepy. It can be taken with or without food. The dose and how often you need to take it will be decided by your doctor so that you get the right amount to control your symptoms. The most common side effects of this medicine include constipation, dry mouth, sleepiness, dizziness, and headache. It may also make you aggressive or confused, and can cause weight gain in some people.