Stelazine is an anti-psychotic medication in a group of drugs called phenothiazines (FEEN-oh-THYE-a-zeens). It works by changing the actions of chemicals in your brain.

Stelazine is used to treat anxiety or psychotic disorders such as schizophrenia.

Stelazine may also be used for other purposes not listed in this medication guide.

Most important: Stop using this medication and call your doctor at once if you have twitching or uncontrollable movements of your eyes, lips, tongue, face, arms, or legs. These could be early signs of dangerous side effects. Stelazine is not for use in psychotic conditions related to dementia. Stelazine may cause heart failure, sudden death, or pneumonia in older adults with dementia-related conditions.

Do not use Stelazine if you have liver disease, brain damage, bone marrow depression, a blood cell disorder (such as low platelets or low red or white blood cell counts), or if you are also using large amounts of alcohol or medicines that make you sleepy. Do not use if you are allergic to trifluoperazine or other phenothiazines.

Before you take Stelazine, tell your doctor if you have heart disease, high blood pressure, angina (chest pain), severe asthma or breathing problems, glaucoma, a history of seizures, adrenal gland tumor, Parkinson’s disease, enlarged prostate or urination problems, low levels of calcium in your blood, past or present breast cancer, or if you have ever had a serious side effect while using trifluoperazine or similar medicines.

Before taking Stelazine, tell your doctor about all other medications you use.