Pirahenz Tablet is used in the treatment of memory loss in Alzheimer's disease. It can also be used to treat age-related and post-traumatic memory loss. It works by improving communication between the nerve cells and protects the brain. Pirahenz Tablet is sometimes used to help manage sickle cell disease. It can reduce the number of painful episodes called vaso-occlusive crises by improving blood flow and preventing blood cells from sticking together.Pirahenz Tablet should be taken by mouth with or without food. It is advisable to take this medicine at the same time each day to maintain a consistent level in the blood. Do not skip any doses and finish the full course of treatment even if you feel better. This medication mustn't be stopped suddenly, as it may result in twitching or jerking movements, and even relapse of the disease may occur.Some common side effects of this medicine include nervousness and abnormality of voluntary movements. It may also cause dizziness and sleepiness, so do not drive or do anything that requires mental focus. This medicine may cause weight gain; therefore, you should have a balanced diet and exercise regularly.This medicine can affect platelet aggregation, so inform your doctor if you have bleeding problems or if you are on medications that help make blood thin. Pregnant and breastfeeding women should consult their doctors before taking this medicine.