Stresnil RF 0.5 Tablet belongs to a class of medicines known as benzodiazepines. It is used to treat anxiety. It alters brain activity, calms it, and provides relief from panic attacks by relaxing the nerves. Stresnil RF 0.5 Tablet may be taken with or without food. However, it is advised to take it at the same time each day as this helps to maintain a consistent level of medicine in the body. Take this medicine in the dose and duration as advised by your doctor as it has a high potential of habit-forming. If you have missed a dose, take it as soon as you remember it and finish the full course of treatment even if you feel better. This medication mustn't be stopped suddenly without talking to the doctor as it may cause nausea and anxiety. The most common side effect of this medicine is lightheadedness. It may cause dizziness and sleepiness, so do not drive or do anything that requires mental focus until you know how this medicine affects you. It may also cause weight gain or weight loss as it can vary from person to person. To prevent weight gain you can eat a healthy balanced diet, avoid snacking with high-calorie foods, and exercise regularly. Weight loss can be managed by increasing food portions and consulting a dietitian. If you have been taking this medicine for a long time then regular monitoring of blood and liver functions may be required.