ADHD stimulant medications are controlled drugs in the UK, and the rules around them affect everyday prescribing, dispensing, repeats, supply and travel. This article covers what those rules are in practical patient terms, where they come from in the law, and what to do in the situations that most often catch people out.
Which ADHD medications are controlled drugs in the UK
The Misuse of Drugs Regulations 2001 set out the categories of controlled drugs (CDs) in the UK [1]. Each schedule has different prescribing, dispensing and record-keeping rules. The ADHD medications break down as follows:
Schedule 2 controlled drugs
- Methylphenidate (Concerta XL, Equasym XL, Medikinet XL, Xaggitin XL, Delmosart, and immediate-release brands)
- Lisdexamfetamine (Elvanse)
- Dexamfetamine
These are the licensed UK ADHD stimulants, and they carry the strictest prescribing and dispensing requirements [2, 3, 4].
Not controlled drugs
- Atomoxetine (Strattera and generic atomoxetine) is not a controlled drug
- Guanfacine (Intuniv and generic modified-release guanfacine) is not a controlled drug
The non-stimulants follow standard prescription rules. The rest of this article focuses on the Schedule 2 stimulants, where the controlled drug rules apply.
The practical rules
28-day quantity limit
The maximum quantity of a Schedule 2 controlled drug that can be prescribed at one time is normally 30 days' supply. The BNF and NHS guidance describe this as "no more than 30 days' treatment", with longer quantities possible only in exceptional circumstances and with prescriber justification [2, 5]. In practice, most prescriptions are written for 28 days. This is the legal upper limit, not a clinical one.
Instalment prescriptions
A prescriber can write a Schedule 2 prescription for instalment dispensing, where the pharmacy supplies the medication in smaller batches across the prescription period. This is more common where there are clinical reasons to limit how much medication is in the patient's possession at one time. Most routine ADHD prescriptions are not instalment-dispensed.
No repeat prescriptions on Schedule 2
Standard repeat prescriptions are not permitted for Schedule 2 CDs. Each prescription is a fresh prescription written by the prescriber. This is one reason why ADHD stimulant prescribing creates more administrative load than, for example, antidepressant prescribing.
The practical implication is that a patient cannot simply tick a repeat box on a monthly basis. The prescriber has to write each prescription afresh, with each prescription valid for a defined dispensing period.
Specific prescription writing requirements
Schedule 2 CD prescriptions must include specific information in a specific format: the prescriber's identifying details, the patient's name and address, the medication name, the form, the strength, the total quantity (in both words and figures), the dose, and a wet-ink prescriber signature where the prescription is on paper. Electronic CD prescribing is now widely used in the NHS but follows equivalent rules [2].
A prescription that does not meet these legal requirements cannot be dispensed. Mistakes are reasonably common, and the result is delay rather than refusal of medication. The pharmacy will usually contact the prescriber to correct rather than simply hand back to the patient.
ID at the pharmacy
The patient (or a representative) collecting a Schedule 2 CD must produce identification on first dispensing and on the request of the pharmacist. A photo ID such as a driving licence or passport is the standard expectation [2]. Pharmacies vary in how strictly they enforce this for repeat collections from familiar patients; if you change pharmacy or are collecting for someone else, expect ID to be requested.
Validity period
A Schedule 2 prescription is valid for 28 days from the date written, not from the date dispensed. A prescription written but not collected within 28 days is no longer dispensable and a new prescription is needed.
Travel with controlled drugs
Travelling with Schedule 2 ADHD medication, particularly internationally, has its own set of rules [6]:
Inside the UK
No special licence is needed. Carrying your medication in its original labelled packaging with the patient information leaflet is the usual recommendation. Keeping a copy of the prescription with you helps if questioned.
Travelling abroad from the UK
A Home Office personal licence is required for taking 3 months or more of a Schedule 2 CD abroad. For shorter trips, a licence is not legally required from the UK side, but carrying a covering letter from your prescriber stating the medication, dose pattern and clinical indication is strongly recommended [6].
Different countries, different rules
The destination country's rules also apply, and they vary substantially. Some countries restrict or prohibit specific ADHD medications even with a UK prescription. Methylphenidate is more widely accepted than lisdexamfetamine and dexamfetamine. Checking the destination country's embassy or consulate guidance before travel is the practical safeguard.
Practical preparation
- Carry medication in original labelled packaging
- Keep medication in hand luggage rather than hold luggage
- Carry a covering letter from your prescriber for any international trip
- For trips of three months or more, apply for a Home Office personal licence in advance
- For complex routes through several countries, check each country's rules
Common situations and what to do
Lost or damaged prescription
The prescriber will normally write a replacement, but the legal trail matters. If a prescription is lost in the post, tell the prescriber and the pharmacy. Schedule 2 prescriptions are tracked.
Running out before the next prescription
A short emergency supply is possible at pharmacist discretion under specific circumstances for non-controlled drugs, but emergency supply rules for Schedule 2 CDs are more restrictive. The practical answer is to contact your prescriber as soon as you realise you will run out.
Forgetting a dose on a travel day
A single missed dose has limited clinical impact for most stimulants, given the daily-only dosing pattern. The relevant practical step is to maintain a buffer in your supply for the unexpected.
What this means in practice
- Methylphenidate, lisdexamfetamine and dexamfetamine are Schedule 2 controlled drugs in the UK. Atomoxetine and guanfacine are not controlled drugs.
- Schedule 2 prescriptions are limited to typically 28 days, cannot be repeat-prescribed, and have specific writing and dispensing requirements.
- ID is required at the pharmacy, particularly on first dispensing or at a new pharmacy.
- Travel with Schedule 2 medication needs planning: original packaging, covering letter, and a Home Office personal licence for trips of three months or more.
- Different destination countries have different rules; check before international travel.
When to speak to a professional
Speak to your pharmacy first about any prescription-related question. Speak to your GP, your prescriber or NHS 111 if a prescription issue cannot be resolved at the pharmacy. Seek urgent help via 999 or A&E for any acute mental health crisis. NeuroFX provides private adult ADHD assessment and ongoing prescribing through ADHD medication and prescribing with NeuroFX, with administrative support for prescription continuity built into the standard pathway.
Sources
- Misuse of Drugs Regulations 2001. Schedule 2. UK Statutory Instruments. https://www.legislation.gov.uk/uksi/2001/3998/contents
- British National Formulary. Controlled drugs and drug dependence. https://bnf.nice.org.uk/medicines-guidance/controlled-drugs-and-drug-dependence/
- British National Formulary. Methylphenidate hydrochloride. https://bnf.nice.org.uk/drugs/methylphenidate-hydrochloride/
- British National Formulary. Lisdexamfetamine mesilate. https://bnf.nice.org.uk/drugs/lisdexamfetamine-mesilate/
- NHS Business Services Authority. Prescription information. https://www.nhsbsa.nhs.uk/
- Home Office. Travelling abroad with controlled drugs. https://www.gov.uk/travelling-controlled-drugs
