Chlorthalidone

Chlorthalidone in plain language

What it is

Also known as Chlortalidone · Chlortalidone (INN) · Natriuran · Phthalamudine · (.+-.)-Chlorthalidone · (.+-.)-Hygroton

Show all 36 names

1-Oxo-3-(3-sulfamyl-4-chlorophenyl)-3-hydroxy-isoindolinum · 1-Oxo-3-(3-sulfamyl-4-chlorophenyl)-3-hydroxyisoindoline · 1-Oxo-3-(4'-chloro-3'-sulphamoylphenyl)-3-hydroxyisoindoline · 1-keto-3-(3'-Sulfamyl-4'-chlorophenyl)-3-hydroxyisoindoline · 3-HYDROXY-3-(4-CHLORO-3-SULFAMYLPHENYL)PHTHALIMIDINE · Chlorothalidone · Chlorphthalidolone · Chlorphthalidone · Chlorthalidon · Clortalidona · Clortalidone · G-33182 · Hemiclor · Hygroton · Igroton · Isoren · Oradil · Phthalamodine · Renon · Saluretin · Thalitone · Zambesil · Clorpres component chlorthalidone · Combipres component chlorthalidone · Demi-regroton component chlorthalidone · Kerledex component chlorthalidone · Lopressidone component chlorthalidone · Regroton component chlorthalidone · Tenoretic component chlorthalidone · Chlortalidonum

What it does

We don't have a plain-language description for Chlorthalidone yet.

Recorded functional uses: Pharmaceutical

Is it a concern?

Critical concern: no hazard classifications on record. It is banned in EU cosmetics.

Why it's flagged

Chlortalidone (INN) is prohibited in cosmetic products under Annex II of the EU Cosmetics Regulation (EC) 1223/2009.

RestrictedEU EC — banned

The score describes this ingredient's chemical identity — its hazard profile from published classifications and regulatory status — not the safety of any product it appears in.

• In marketed US drugs
• EU Annex II — prohibited
• EU prohibited in cosmetics

• EU·EC

  Annex II of EU Cosmetics Regulation (EC) 1223/2009: substances prohibited in cosmetic products.

  banned
  View source →

• EU·CosIng·ActiveCosmetics Regulation annex II / ref 262.

  • Cosmetics Regulation annex II / ref 262.Source →
• US·EPA·commercial use observedEPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Pharmaceutical.

  • EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Pharmaceutical.Source →
• US·FDA·marketed drug occurrenceFDA NDC lists this ingredient in 117 active drug products and 121 total products.

  • FDA NDC lists this ingredient in 117 active drug products and 121 total products.Source →
• US·FDA·listed in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.

  • openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

No expert opinion on file for Chlorthalidone. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

• SCCS

  EU Scientific Committee on Consumer Safety

  No SCCS opinion on file.

• CIR

  Cosmetic Ingredient Review (US expert panel)

  No CIR safety assessment on file.