Tardive dyskinesia (TD) is a movement disorder caused by certain drugs. It typically appears after someone has been taking the drugs for several months or years. The symptoms of TD include uncontrolled movements of the face, tongue, lips, and other parts of the body. These movements can cause people to make abnormal expressions, stick out their tongue, or grimace. TD can also cause poor control of the arms and legs and slow, jerky movements.

TD is most commonly caused by the use of drugs that are used to treat psychiatric disorders, including schizophrenia and bipolar disorder. Other types of drugs such as metoclopramide and some antihistamines can also cause TD. The risk for developing TD increases with the dose and length of time someone takes the drug. The risk is also higher in older adults and those who are taking more than one psychiatric medication at the same time.

The symptoms of TD can range from mild to severe. In mild cases, the movement disorder can be barely noticeable and may only be seen in certain situations or postures, such as when the person is laughing or talking. In more severe cases, the movements may be more prevalent and uncontrollable, interfering with daily activities.

TD is generally a long-term side effect and can last for months or years after the drug has been discontinued. The severity of the movements can wax and wane throughout this time. Unfortunately, there is currently no cure for TD and treatment options can vary depending on the individual. In some cases, medications may be used to reduce the severity of the movements. In other cases, psychotherapy may also be recommended, as this technique can help people cope with their TD.

It is important to be aware of the risk of TD if you are taking drugs to treat a psychiatric disorder, and to speak with your doctor about any concerns you may have. If you are experiencing the symptoms of TD, make sure to let your doctor know. He or she may be able to change your medication or recommend other treatments to help reduce the severity of your symptoms.