Thioridazine: uses, dosing, side effects & brands
Thioridazine is a medicine sold in the U.S. under 2 brand and generic names. Below: what the FDA label says, every product that contains it, what the pills look like, and its recall record.
Key facts
- Available as
- Suspension · Tablet
- Sold as
- 2 products — Mellaril-S and Thioridazine Hydrochloride
- Prescription?
- Prescription only
- Generic available?
- Yes
- What the pharmacy pays
- about $22 for a 30-count supply — not your price
Every thioridazine product we track (2)
Same active ingredient — different manufacturer, form, price and FDA recall record. That last one is what our independent score measures.
| # | Drug | Rating | Type | Form | Generic? | Pharmacy pays | |
|---|---|---|---|---|---|---|---|
| 1 | 70/100 | Prescription | Suspension | Generic | $22 | View → | |
| 2 | 70/100 | Prescription | Tablet | Generic | $22 | View → |
What thioridazine pills look like
Imprint codes, colour and shape from the FDA’s labelling data. Match the imprint on your pill — or search any imprint.
| Imprint | Strength | Colour | Shape | Maker |
|---|---|---|---|---|
| M;59;50 | 50 mg | orange | round | — |
| M;61;100 | 100 mg | orange | round | — |
| M;54;10 | 10 mg | orange | round | — |
| M;58;25 | 25 mg | orange | round | — |
| M;59;50 | 50 mg | orange | round | — |
| M;61;100 | 100 mg | orange | round | — |
| CE;242 | 10 mg | orange | round | — |
| CE;244 | 25 mg | orange | round | — |
| CE;245 | 50 mg | orange | round | — |
| CE;246 | 100 mg | orange | round | — |
| M;54;10 | 10 mg | orange | round | — |
| M;58;25 | 25 mg | orange | round | — |
Thioridazine and breastfeeding
From LactMed, the US National Library of Medicine’s Drugs and Lactation Database — quoted, not rewritten.
Full LactMed record for thioridazine: levels in milk, effects in breastfed infants, and the drugs it would consider insteadBecause there is no published experience with thioridazine during breastfeeding, an alternate drug may be preferred, especially while nursing a newborn or preterm infant.
National Institute of Child Health and Human Development, record revised November 30, 2022. LactMed states its information is not a substitute for professional judgement.
What people report to the FDA about thioridazine
The FDA Adverse Event Reporting System (FAERS) collects reports from patients and clinicians. It holds 1,043 reports naming thioridazine, and the FDA flagged 90% of those reports as serious. The effects reported most often — leaving out reports about overdose, misuse or the condition being treated, which dominate the raw list for common medicines:
- weight increased177 reports
- obsessive-compulsive disorder162 reports
- akathisia158 reports
- increased appetite154 reports
- euphoric mood153 reports
- antipsychotic drug level below therapeutic152 reports
- disinhibition152 reports
- leukopenia146 reports
Read these as a signal, not a rate. A report does not mean thioridazine caused the effect — anyone can file one, and many describe people taking several medicines for several conditions. Crucially there is no denominator: FAERS does not record how many people took the drug, so these counts cannot be turned into “X% of patients” — a bigger number often just means a more widely used or more talked-about drug. Duplicates exist, and publicity drives reporting. For what is actually established, read the FDA label.
Source: openFDA drug/event (FAERS), retrieved August 26, 2026.
Related calculators
Frequently asked questions
Can you take thioridazine with other medicines?
It depends on the medicine. We check it against the FDA labels rather than guessing: our interaction checker searches each drug's own label for the other and quotes what it says, naming the section it came from. Run thioridazine against whatever else you take — and remember that a label not naming a drug is not the same as that combination being safe.
What brand names is thioridazine sold under?
We track 2 thioridazine-containing products in the U.S.: Mellaril-S and Thioridazine Hydrochloride. They are the same active ingredient; they differ in form, manufacturer, price and FDA recall record.
What forms does thioridazine come in?
Across the brands we track, thioridazine is currently marketed as suspension and tablet, per the FDA's National Drug Code Directory. Each form is dosed differently — follow the label for the exact product you were prescribed.
Is there a generic thioridazine?
Yes. Our catalog lists 1 generic thioridazine product alongside the brand versions. A generic has the same active ingredient and must meet the FDA's bioequivalence standard; it usually costs less. Ask your pharmacist which one your plan covers.
Cite this page
- APA
- pharmaranks. (2026, July 24). Thioridazine: uses, dosing, side effects & brands. https://pharmaranks.com/drugs/thioridazine
- MLA
- “Thioridazine: uses, dosing, side effects & brands.” pharmaranks, 24 July 2026, https://pharmaranks.com/drugs/thioridazine.
We summarise public FDA and NIH sources — for a clinical claim, cite the primary source we link to as well.
Sources: FDA openFDA drug label, National Drug Code Directory, and Enforcement (recall) database. This page reproduces public FDA data and is not medical advice. Dosing is set by your prescriber.
Read the full FDA label for thioridazine on DailyMed (NIH) ↗.