: Uncoated tablets must typically disintegrate within 15 minutes in water at 37°C. Coated tablets (non-film) are allowed up to 60 minutes.
General Monograph 0478, titled "Tablets," is a foundational quality standard within the European Pharmacopoeia (Ph. Eur.). The European Pharmacopoeia is the primary source of official quality standards for medicines and their ingredients in Europe, providing a legal and scientific basis for quality control throughout a product's lifecycle.
Since the early 2000s, the Ph. Eur. has continuously updated the Tablets monograph to address new dosage forms and emerging quality concerns. Key milestones in its evolution are outlined in the table below:
Must disintegrate within 3 minutes in water at 15–25°C. European Pharmacopoeia -ph. Eur.- Monograph Tablets -0478-
Would you like a side-by-side comparison with the USP or JP tablet monographs as well?
Manufacturers must implement validated processes to ensure the following:
According to the current Ph. Eur. standards, tablets must meet several critical physical and chemical specifications: : Uncoated tablets must typically disintegrate within 15
(e.g., lozenges, sublingual tablets) Oral lyophilisates 2. Core Production and Manufacturing Requirements
Depending on the tablet type, the monograph requires testing of (how fast it breaks down) or Dissolution (how fast the drug is released). An EDQM FAQ clarifies that the applicant may use the monograph’s prescribed disintegration test or develop their own, pending regulatory approval. For dissolution, Ph. Eur. general chapter 2.9.3 (Dissolution test for solid dosage forms) is the key reference.
| Test | Ph. Eur. Reference | When required | Common Pitfall | |------|--------------------|---------------|----------------| | Appearance | Visual inspection | Always | Overlooking color variation from batch to batch | | Identification A+B | As per monograph | Always | Using same HPLC condition for assay and ID (not allowed unless specified) | | Uniformity of mass | 2.9.5 | If active ≥ 50% w/w or ≥ 25 mg per unit | Not performing it on 20 tablets individually | | Uniformity of content | 2.9.6 | If active < 50% w/w or < 2 mg per unit | Applying mass method incorrectly to low-dose tablets | | Dissolution | 2.9.3 | Default for immediate-release | Using wrong apparatus (paddle vs basket) without justification | | Disintegration | 2.9.1 | Only if monograph permits | Forgetting time limit (e.g., 15 min for uncoated) | | Friability | 2.9.7 | Only if in specification | Testing hygroscopic tablets at ambient humidity | or freeze-drying (lyophilisation).
In the pharmaceutical world, consistency is everything. For solid oral dosage forms, the is the foundational document that defines what a "tablet" actually is and the rigorous tests it must pass to ensure patient safety and efficacy. What Defines a Tablet under 0478?
Disintegration measures the time required for a tablet to break apart into smaller particles under specific mechanical agitation in a fluid medium. Monograph 0478 establishes clear maximum disintegration time limits based on tablet type: Typically within 15 minutes in water.
: Tablets that disperse rapidly in the mouth before swallowing.
According to the monograph, tablets are solid preparations, each containing a single dose of one or more active substances. They are typically produced by compressing uniform volumes of particles but can also be made through extrusion, moulding, or freeze-drying (lyophilisation).