Generic Name: Thioridazine

  • What is Thioridazine?

    Thioridazine is an antipsychotic drug used to treat schizophrenia.

  • What is the most important information I should know about Thioridazine?

    Thioridazine has been associated with arrhythmias (life-threatening irregular heartbeats) and sudden death. If you experience symptoms such as fast, irregular, or pounding heartbeat, dizziness, lightheadedness, fainting or seizures, call your doctor right away.

    Thioridazine may cause tardive dyskinesia, a movement disorder characterized by slow or jerky facial or body movements. Older adults, especially women, appear to be at greater risk.

    Thioridazine may cause neuroleptic malignant syndrome, a life-threatening brain disorder. Call your doctor immediately if you develop muscle stiffness, confusion, irregular or rapid heartbeat, increased blood pressure, excessive sweating, shaking, and high fever.

  • Who should not take Thioridazine?

    Elderly patients with dementia-related psychosis should not receive thioridazine. Do not take thioridazine if you are allergic to this medication or any of its ingredients.

  • What should I tell my doctor before I take the first dose of Thioridazine?

    Tell your doctor about all prescription, over-the-counter, and herbal medications you are taking before beginning treatment with thioridazine. Also, talk to your doctor about your complete medical history, especially if you have a history of heart problems, and if you are pregnant, plan to become pregnant, or are breastfeeding.

  • What is the usual dosage?

    The information below is based on the dosage guidelines your doctor uses. Depending on your condition and medical history, your doctor may prescribe a different regimen. Do not change the dosage or stop taking your medication without your doctor's approval.

    Adults: The usual starting dose is 50-100 milligrams (mg), taken 3 times a day. If necessary, your doctor may increase your dose up to a maximum daily dose of 800 mg, divided into 2 or 4 doses.

    Children: The doctor will prescribe the appropriate dose for your child based on their weight.

  • How should I take Thioridazine?

    Take this medication exactly as prescribed by your doctor. You should never stop taking this medication without consulting your doctor first.

  • What should I avoid while taking Thioridazine?

    Avoid driving or operating dangerous machinery or participating in any hazardous activity that requires full mental alertness until you know how this medication affects you.

    Thioridazine should be avoided in patients using other medications that can cause arrhythmias.

    Thioridazine is not to be used with other agents that cause central nervous system depression, such as alcohol, barbiturates such as phenobarbital, or narcotic pain killers.

  • What are possible food and drug interactions associated with Thioridazine?

    If thioridazine is taken with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important to check with your doctor before combining this medication with any of the following: fluoxetine, fluvoxamine, paroxetine, pindolol, and propranolol.

  • What are the possible side effects of Thioridazine?

    Side effects cannot be anticipated. If any develop or change in intensity, tell your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking this drug.

    Side effects may include: blurred vision, constipation, drowsiness, dizziness, dry mouth, restlessness, weight gain

  • Can I receive Thioridazine if I am pregnant or breastfeeding?

    The effects of thioridazine during pregnancy and breastfeeding are unknown. Tell your doctor immediately if you are pregnant, plan to become pregnant, or are breastfeeding.

  • What should I do if I miss a dose of Thioridazine?

    If you miss a dose of thioridazine, take it as soon as you remember. However, if it is almost time for your next dose, skip the one you missed and return to your regular dosing schedule. Do not take two doses at once.

  • How should I store Thioridazine?

    Store at room temperature.