Question:
Coating of Eudragit NE40D on tablets is done to prepare:
Coating of Eudragit NE40D on tablets is done to prepare:
Updated On: Jul 14, 2026
- Sublingual tablets
- IR tablets
- CR tablets
- Buccal tablets
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The Correct Option is C
Approach Solution - 1
The correct option is (C): CR tablets.
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Approach Solution -2
The question asks what dosage form Eudragit NE40D coating is used to prepare. Let's check each dosage form against what this specific polymer film actually does.
- Sublingual tablets: These are designed to dissolve quickly under the tongue for fast drug absorption. Coating them with a water-insoluble polymer film would block that fast dissolution, so this use does not match Eudragit NE40D's properties.
- IR tablets: Immediate release formulations need the drug exposed and dissolved quickly after swallowing. An insoluble neutral acrylic film like Eudragit NE40D would slow this down rather than support it.
- CR tablets: Eudragit NE40D is a neutral copolymer of ethyl acrylate and methyl methacrylate that stays insoluble in water at every pH and forms a flexible, swellable film. Coating tablets with it creates a diffusion barrier that releases drug slowly and steadily over time, exactly the function a controlled release product needs.
- Buccal tablets: Buccal tablets are meant to stick to the cheek lining and release drug across the buccal mucosa fairly quickly, and they typically use mucoadhesive polymers rather than a pH-independent insoluble film like Eudragit NE40D.
Only the controlled release use matches a coating that stays insoluble and swellable across the whole pH range of the gut.
The correct answer is CR tablets.
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