thioridazine (Mellaril is a discontinued brand) (cont.)

Pharmacy Author:
Medical and Pharmacy Editor:

SIDE EFFECTS: Thioridazine causes extrapyramidal side effects such as:

  • Abnormal muscle contractions
  • Difficulty breathing and swallowing
  • Neck spasms

Other side effects include:



PREPARATIONS: Tablets: 10, 25, 50 and 100 mg.

STORAGE: Thioridazine tablets should be stored between 15 C and 30 C (59 F and 86 F).


  • The recommended starting dose of thioridazine for treating schizophrenia is 50 to 100 mg every 8 hours.
  • Maintenance is recommended with doses every 6-12 hours with a total daily dose of 200 to 800 mg.
  • The dose for treating depressive disorders is 25 mg every 8 hours. The dose may be increased slowly to 20 to 200 mg daily.
Medically Reviewed by a Doctor on 11/6/2015

Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

Pill Finder Tool

Need help identifying pills and medications?
Use the pill identifier tool on RxList.

Back to Medications Index