Canada Drug Schedules Overview

Health Canada's Prescription Drug List (PDL) for human use has 1,535 entries, and I've put every one in a panel document, sorted alphabetically with its "including" examples, qualifier and effective date. An entry can be a single ingredient ("Metformin or its salts or derivatives") or a whole class, such as penicillins, cephalosporins, adrenocortical hormones, sex hormones or prostaglandins. A drug needs a prescription if it contains a listed ingredient, unless a qualifier says otherwise (Health Canada PDL page, last updated August 26, 2026).

Approach: The regulatory datasets I searched don't hold the PDL itself, so I read the official list on Health Canada's Prescription Drug List: Human Use page in full. The PDL has a second part for veterinary use (Veterinary Use list), which is not in the document.

How to read it

• Controlled substances are excluded. Ingredients in the CDSA schedules are not on the PDL.
• Qualifiers: 92 entries have one. They either limit prescription status to certain uses, or exempt lower strengths and particular forms that can be sold without a prescription. Examples:
  • Ibuprofen is exempt at 400 mg or less per oral dose, or 600 mg or less in modified-release form.
  • Diclofenac is exempt as a single topical ingredient at 2% or less for no more than 7 days.
  • Omeprazole and esomeprazole are exempt for 14-day heartburn treatment at 20 mg a day.
  • Hydrocortisone is exempt at 1.0% or less in topical products.
  • Nicotine is exempt as gum, patches, lozenges, pouches and similar products within stated limits.
  • Vitamin D is prescription-only above 2,500 IU per dose.
• Dates: 1,076 entries are dated 2013-12-19 or 2013-12-20. Health Canada says these dates reflect the switch from the old Schedule F to the PDL, not when the ingredient was first listed.
• 2026 changes so far: 28 entries have 2026 effective dates.
  • Most recent (2026-08-27): seven new ingredients (afamelanotide, atrasentan, depemokimab, pimicotinib, remibrutinib, ropeginterferon alfa-2b, tovorafenib) and a revised botulinum toxin entry.
  • Melatonin is now prescription-only when sold for sleep-related use in people under 18 (2026-06-02).
  • The nicotine entry was revised (2026-01-14), and the macitentan entry now includes aprocitentan (2026-02-26).

I can transcribe the veterinary-use list too, or check a specific ingredient against the PDL, the CDSA schedules and NAPRA together.

The CDSA schedules run alongside the Prescription Drug List (PDL), not inside it. Health Canada says that ingredients made prescription-only under the CDSA "are not listed on the PDL." Drugs containing them still have to meet the Food and Drug Regulations to be sold lawfully for therapeutic purposes ^[17]. In practice, a CDSA drug falls under two federal regimes: the CDSA (with its own regulations, plus Parts G and J of the Food and Drug Regulations) and the general drug rules of the Food and Drugs Act.

Approach: I read the Food and Drug Regulations and the Food and Drugs Act (Justice Laws consolidations) and Health Canada's drug guidance documents. The CDSA's own regulations (for example the Narcotic Control Regulations) are not in the datasets I can search. The schedule contents I gave last time came from the official Justice Laws CDSA pages.

1. Why CDSA drugs are left off the PDL

• Kept off the PDL on purpose. When Health Canada finds that a practitioner's involvement is needed, it gives the ingredient prescription status and adds it to the PDL, "with the exception noted for controlled substances" ^[17].
• Separate decisions. The guidance on determining prescription status does not cover whether a drug should be a controlled substance under the CDSA ^[18].
• Why the CDSA layer exists. Health Canada says most drugs that can cause dependence or addiction are also controlled substances. The CDSA and its regulations add requirements on record-keeping, storage and distribution to limit diversion to the illicit market. Its examples are morphine and methadone ^[18].

2. How the Food and Drug Regulations bring in CDSA substances

Two Parts of the Regulations are made under the CDSA. In each, "Act" means the Controlled Drugs and Substances Act.

The Part G schedule has three Parts:

• Part I: amphetamines (excluding substances in item 1 of Part I of the Part J schedule), methylphenidate and its analogues, methaqualone, pentobarbital, secobarbital, GHB, aminorex and others ^[19].
• Part II: barbiturates and thiobarbiturates, chlorphentermine, diethylpropion, phentermine, butorphanol, nalbuphine and pyrovalerone ^[19][20].
• Part III: anabolic steroids, for example testosterone, nandrolone, oxandrolone, stanozolol and trenbolone ^[20][21].

Both Parts exempt police acting under the CDSA (Police Enforcement) Regulations ^[22][23]. Narcotics are dealt with by cross-reference to the separate Narcotic Control Regulations, for example in C.01.048 and C.01A.001 ^[24].

3. Where the Regulations name CDSA drugs next to prescription drugs

Because CDSA drugs are not on the PDL, provisions meant to catch all practitioner-supervised drugs list the CDSA schedules as a separate group:

• Drug shortage and discontinuation reporting (C.01.014.8). The definition of "drug" covers human drugs in CDSA Schedules I to V, prescription drugs, Schedule C and D drugs, and non-prescription drugs to be given only under a practitioner's supervision ^[16].
• Exceptional importation (C.10.005(3)). The same four groups are excluded from Subpart 2 of the List of Drugs for Exceptional Importation and Sale ^[25].
• A.01.066. Sections A.01.067 and A.01.068 do not apply to drugs in CDSA Schedules I to V or to prescription drugs ^[26].
• Samples (C.01.048). A drug cannot be sent as a sample on a signed order if it is a narcotic under the Narcotic Control Regulations, a Part G controlled drug, or a prescription drug under the Cannabis Regulations ^[24].
• Wholesalers (C.01A.001). The definition covers anyone selling, other than at retail, Schedule C or D drugs, prescription drugs, Part G controlled drugs, narcotics under the Narcotic Control Regulations, or cannabis drugs ^[27].

4. What this means for prescription status

• Full prescription-only picture. For a human drug, this is the PDL plus the CDSA schedules. A substance missing from the PDL list I gave you can still need a prescription because of the CDSA.
• CDSA Schedules VI and IX are a different matter. They cover precursors and tablet-press equipment, so they bear on dealer and import/export controls rather than on prescriptions. Schedules VII and VIII are repealed. This comes from the Justice Laws schedule pages summarised in my first answer.
• Medical-use criteria. For a drug that may cause dependence or abuse, Health Canada notes that its medicinal ingredients "will also be regulated as controlled substances" in many cases ^[18].

I can check where a specific substance sits (PDL, the CDSA schedules, Part G or Part J of the Regulations, and NAPRA) if you have one in mind.

Mostly no, with two exceptions: British Columbia and Quebec. Nine provinces and the three territories apply NAPRA's National Drug Schedules "by reference", so any NAPRA scheduling decision takes effect there automatically. British Columbia has its own Drug Schedules Regulation that takes in the federal and NAPRA lists but adds a schedule of its own and a list of exceptions. Quebec keeps entirely separate schedules.

Approach: The regulatory datasets I can search don't hold any provincial pharmacy or drug-scheduling law, so I used official sources: BC Laws, NAPRA's pages and the Quebec legislation portal. I couldn't open Quebec's regulation text this time, so the Quebec details below come from NAPRA.

How each province and territory applies the national schedules

NAPRA's implementation table was last updated November 14, 2025 (NAPRA):

NAPRA describes the overall split this way: "the federal government determines certain conditions of sale, such as the need for a prescription," and "provincial/territorial governments have the ability to further specify the conditions of sale" (NAPRA, Drug Scheduling in Canada).

British Columbia: Drug Schedules Regulation

This regulation is made under the Pharmacy Operations and Drug Scheduling Act. The consolidation is current to October 6, 2026 and was last amended by B.C. Reg. 238/2025 on December 15, 2025 (BC Laws).

• Schedule I: needs a prescription. Supplied by a pharmacist "following the diagnosis and professional intervention of a practitioner."
• Schedule IA: BC's own extra schedule, used for the triplicate/duplicate prescription program. These drugs may be sold only to a practitioner or on a practitioner's prescription, "in accordance with the bylaws." The listed examples are mostly opioids, such as hydromorphone, methadone, morphine, oxycodone, tapentadol and buprenorphine. These are also CDSA substances, so BC adds a provincial prescription-monitoring layer on top of the federal controls.
• Schedule II: sold by a pharmacist without a prescription, but kept in the Professional Service Area "where there is no public access."
• Schedule III: sold by a pharmacist from the self-selection Professional Products Area.
• Unscheduled: "may be sold by a non-pharmacist to any person."
• Where they can be sold (s. 2): drugs in Schedules I, IA, II and III must be sold from licensed pharmacies.
• Federal and NAPRA lists taken in automatically (s. 4):
  • Drugs on the federal Prescription Drug List or in NAPRA Schedule I become BC Schedule I.
  • NAPRA Schedule II and III drugs become BC Schedule II and III.
• Exceptions to that (s. 5): some drugs are not taken in automatically, so BC treats them differently from the national schedules. They include mifepristone (antiprogestins), ephedrine, naloxone, nicotine, misoprostol (prostaglandins), pseudoephedrine, semaglutide, sex hormones and vaccines. For any of these, check the BC entry itself rather than assuming the NAPRA status applies.

Quebec

Drug scheduling in Quebec falls under the Ordre des pharmaciens du Québec rather than NAPRA (NAPRA). The governing instrument is the Regulation respecting the terms and conditions for the sale of medications (chapter P-10, r. 12). I couldn't open its text this time, so I can't give its schedule structure or exact wording here.

What this means in practice

• The federal floor applies everywhere. No province can sell a PDL or CDSA drug without a prescription. Provinces can only add conditions of sale on top.
• Outside BC and Quebec, the NAPRA schedule is the provincial schedule, although NAPRA notes that each jurisdiction applies the conditions of sale slightly differently.
• In BC, check the Drug Schedules Regulation for any drug in the s. 5 exception groups and for opioids that may fall under Schedule IA.

I can look up a specific drug's status in BC's Drug Schedules Regulation against its NAPRA and PDL status if you have one in mind.