Opiprol 100 Tablet is a prescription medicine used in the treatment of anxiety disorder. It also helps in restoring the messengers that elevate the mood. Opiprol 100 Tablet may be taken with or without food. However, it is advised to take it at a fixed time each day to maintain a consistent level of medicine in the blood. If you have missed a dose, take it as soon as you remember and finish the full course of treatment even if you feel better. It is important that this medication is not stopped suddenly without talking to your doctor as it may worsen your symptoms. Some common side effects of this medicine include nasal congestion, fatigue, and dryness in the mouth. Initially, this medicine may cause a sudden drop in blood pressure when you change positions, so it is better to rise slowly if you have been sitting or lying down. It even causes dizziness and sleepiness, so do not drive or do anything that requires mental focus until you know how this medicine affects you. It is important to inform your doctor if you develop any unusual changes in mood as it may lead to suicidal thoughts. If you have been taking this medicine for a long time, regular monitoring liver function may be required.