Malaysia Poisons List: The Group A/B/C/D Classification Lines

In Malaysia, to judge whether a product containing an active ingredient “needs a prescription, where it can be sold, and whether it counts as a prescription medicine or OTC,” the starting point is always the Poisons Act 1952 (Act 366). This Act's First Schedule lists all controlled poisons (drugs, preparations) and divides them, by intensity of control, into the four groups A, B, C and D; the implementing authority is the Pharmaceutical Services Division of the Ministry of Health. Which group an ingredient falls into directly determines the product's channel and registration category — which is why brands and importers must check ingredients against the Poisons List before designing labels or choosing a registration category.

The four poison groups: who can sell, prescription or not

Group B prescriptions also have minimum format requirements: the prescriber's signature and date, the prescriber's name and address, the patient's name and address, the total quantity and dose of the medicine, the number of dispensings (at most three), and legible handwriting with no codes. After the 2022 amendment, electronic prescriptions compliant with the Digital Signature Act 1997 also have legal effect.

Scheduled vs non-scheduled: where OTC begins

The other half of understanding the Poisons List is distinguishing “scheduled” from “non-scheduled”:

• Scheduled Poison: listed in the First Schedule and managed under A/B/C/D. Products containing these ingredients usually go the prescription route (A/B) or the pharmacy channel (C).
• Non-Scheduled Poison / non-poison: not in the First Schedule, entirely outside the prescription controls of the Poisons Act — this is exactly the ingredient basis of over-the-counter OTC medicines (MAL number ending in X).
• The Second Schedule lists substances excluded from the application of this Act.

In other words, the same active ingredient, if listed in the First Schedule, may be a prescription or pharmacy medicine; if not listed, it may go the OTC route. To see how the OTC side registers, see the OTC medicine (Category X) registration guide; to see the various MAL categories and overall classification, see the category codes of the MAL registration number and the drug/food/cosmetic classification map.

Group C does not mean “sell freely”

The most common misunderstanding is to treat Group C (prescription-free) as “as free as ordinary retail goods.” In fact Group C is still a dispensed medicine under the Poisons Act; pharmacies must keep sales records as required (Prescription Book, etc.) and a pharmacist must be the gatekeeper. What is truly outside the Poisons Act's channel controls is non-scheduled non-poison OTC. This fine “Group C vs non-poison” line is often the watershed for whether a product can be sold in general (non-pharmacy) channels.

What this means for brands and importers

• Verify ingredients first, then decide the category: check each active ingredient against the First Schedule to confirm whether it is A/B/C/D or non-scheduled, so you know whether the product goes A/X or needs a pharmacy channel.
• Get the channel right: selling a product containing a Group B ingredient on general shelves, or listing a Group C product in non-pharmacy channels as a non-poison, are both violations.
• Do not carry over the exporting country's classification for imports: the same ingredient may be OTC in another country yet listed in the First Schedule in Malaysia; it must be re-judged against the Malaysian Poisons List.

For the overall context of classification and registration, read on with this pillar, an overview of Malaysian traditional medicine and MAL registration.

Common mistakes

• Ignoring that an ingredient is Group C/B: selling a product containing a pharmacy or prescription-medicine ingredient as a health product or daily commodity.
• Looking only at the finished product's use, not the ingredient: classification depends on whether the ingredient is scheduled, not on marketing positioning.
• Channel misplacement: putting a Group C product into non-pharmacy general retail channels.

Frequently asked questions (FAQ)

Q: How does the Poisons List relate to the MAL registration category? The Poisons List determines an ingredient's control grade (whether scheduled, which group), which in turn affects which MAL category the product takes: those containing scheduled poisons are mostly A (prescription), and only non-scheduled ones may be X (OTC).

Q: Can a Group C product be sold in a convenience store? Generally no. Group C belongs to the pharmacy channel, must be supplied by a pharmacist with records kept; what can be sold in general retail channels is usually a fully non-scheduled non-poison product.

Q: How do I know whether my ingredient is in the First Schedule? You must check it one by one against the listed schedule in the First Schedule of the Poisons Act 1952 (subject to the latest official text and notices), or confirm with the Pharmaceutical Services Division/NPRA; when the nature of an ingredient is unclear, do not assume it to be a non-poison on your own.

Q: What is the Second Schedule for? The Second Schedule lists substances excluded from the application of this Act; if an ingredient falls into the Second Schedule, it is not subject to the relevant controls of the Poisons Act.

Pre-market self-check

• [ ] Checked each active ingredient against the First Schedule, confirming whether it is scheduled and which group it belongs to
• [ ] Confirmed that the product channel matches the ingredient group (prescription/pharmacy/general retail)
• [ ] Decided the MAL registration category accordingly (A vs X, etc.)
• [ ] Imported products have been re-judged against the Malaysian Poisons List, not carried over from the exporting country
• [ ] Uncertain ingredients have been verified with the Pharmaceutical Services Division/NPRA

In summary: the Poisons List is the foundation of the entire medicine classification. Confirm first whether an ingredient is A/B/C/D or non-scheduled, and then the channel, registration category and labelling can stand.

Run a free label check now

This article is compiled from official sources and is for reference only; actual compliance is subject to the latest official text and review by the competent authorities.