One day's medication, more than one dose
A few emails have come in recently asking versions of the same question. One reader takes Medikinet tablets, 10mg in the morning and 5mg at lunch. Another takes half a tablet in the morning and the other half in the afternoon. A reader in Germany has been prescribed a modified-release methylphenidate capsule twice a day. They're all spreading a day's medication across more than one dose, but what each medicine's own label says about it is kind of different.
This page goes through what those labels say, using each medicine's Summary of Product Characteristics (SmPC) and NICE's ADHD guideline, so you know what to ask. It isn't advice on your own doses. Your prescriber decides your dose and timing, and your pharmacist can tell you how your particular tablet or capsule can be taken.
Immediate-release, two or three times a day
Ritalin, Medikinet and dexamfetamine tablets. Their SmPCs describe a daily dose split across the day.
Long-acting in the morning, a top-up later
NICE asks prescribers to think about it for methylphenidate. Some product labels put limits on it.
Modified-release twice a day
Off-label for most products, which are licensed once a day. Medikinet XL's adult licence is the exception.
Medicines made to be taken two or three times a day
Immediate-release tablets are the ones whose labels expect more than one dose a day. The Ritalin tablet SmPC starts adults on 10mg twice a day, at breakfast and lunch for example, and says the total daily dose is usually given as two or three doses, up to 80mg a day for adults.
Medikinet tablets carry the same wording, a starting dose once or twice a day and a total daily dose usually split into two or three. Their UK licence covers children aged 6 and over, so for an adult they're prescribed off-label, which comes up again below.
Dexamfetamine tablets are taken once or twice a day depending on how symptoms run through the day, and the SmPC says not too late after lunchtime, to avoid disturbing sleep. They're licensed for 6 to 17 year olds in the UK, and NICE's guideline names dexamfetamine as an off-label option for some adults.
NICE says immediate-release preparations may suit people who need a more flexible dosing pattern, and can help during titration while the right dose is found. So two doses a day, morning and lunchtime, is the pattern these labels describe. How much goes into each one is up to your prescriber.
A long-acting medicine with a top-up later in the day
NICE also tells prescribers to think about a modified-release methylphenidate in the morning and an immediate-release methylphenidate at another time of day, to make the effect last longer. The same section reminds them that the size of the effect, how long it lasts and its side effects all vary from person to person.
The labels themselves differ. The Medikinet XL SmPC, in its section on children, says a small 5mg immediate-release methylphenidate tablet late in the day may help if the capsule wears off too early in the evening, weighed up against trouble falling asleep. Both capsules' SmPCs also set a limit. Ritalin XL's says treatment shouldn't continue with Ritalin XL if an extra late dose of a short-acting methylphenidate tablet is needed, and Medikinet XL's says the same, unless that extra dose was also needed on an equivalent immediate-release regimen.
Elvanse's SmPC says afternoon doses of Elvanse should be avoided because of the potential for insomnia.
If a long-acting dose seems to run out before your day does, that's worth noting down with times and taking to your prescriber. A top-up is their decision, and so is the medicine and the strength it uses.
Modified-release methylphenidate twice a day
Most modified-release methylphenidate is licensed once a day. Concerta XL and Ritalin XL are both taken once daily in the morning, according to their SmPCs. The Medikinet XL capsule is designed, for children, to take the place of an immediate-release dose at breakfast and another at lunch, with 20mg of Medikinet XL standing in for 10mg plus 10mg.
Medikinet XL is the exception for adults. Its UK SmPC says an adult's total daily dose is given as two divided doses, in the morning and at midday, with or after food.
Where a product's licence says once a day, a second dose is off-label. Off-label means outside the terms of the product licence, and it's a recognised part of prescribing. NICE's ADHD guideline recommends some off-label uses itself, dexamfetamine for some adults among them.
So if you've been prescribed a modified-release capsule twice a day, that's a decision your prescriber has made with your history in front of them. They're the person to ask about it, and your pharmacist can help with how and when to take each dose.
Splitting, crushing and opening
Whether a tablet can be cut or a capsule opened depends on how it's made. A long-acting tablet or capsule controls how quickly the medicine is released, and breaking it can change that. The guanfacine SmPC spells it out, crushing, chewing or breaking the tablet increases the rate of release.
| Medicine | Form | What the SmPC says |
|---|---|---|
| Concerta XL | Prolonged-release tablet | Swallow whole with liquid. Don't chew, divide or crush it. |
| Elvanse | Capsule | Swallow whole, or open it and mix the entire contents with a soft food such as yoghurt, or in water or orange juice. Don't divide a single capsule. |
| Medikinet XL | Modified-release capsule | Take with or after food. Swallow whole, or open it and sprinkle the contents on a tablespoon of apple sauce or yoghurt, taken straight away. Don't crush or chew the capsule or its contents. |
| Ritalin XL | Modified-release capsule | Swallow whole, or open it and sprinkle the contents on a small amount of food. Don't crush, chew or divide it. |
| Ritalin | Immediate-release tablet | Has a score line and can be divided into equal doses. |
| Medikinet | Immediate-release tablet | Can be divided into equal halves. Swallow whole or halved with liquid, with or after meals. |
| Amfexa 10mg | Dexamfetamine tablet | The score line is only there to make it easier to swallow, not to divide it into equal doses. |
| Guanfacine | Prolonged-release tablet | Don't crush, chew or break it before swallowing. |
| Atomoxetine | Capsule | Not meant to be opened. Atomoxetine irritates the eyes. |
From each medicine's SmPC, sections 3, 4.2 and 4.4. Rules can differ between brands and strengths.
A half tablet is only a reliable half dose where the leaflet says the tablet divides into equal doses. Generic versions and other strengths can have different rules, so check the leaflet in your own box, and ask your pharmacist before you split, crush or open anything.
Why your prescriber and pharmacist come first
NICE asks whoever starts your medication to know how every short- and long-acting preparation behaves, and to tailor treatment to you. The doses, the gap between them and the medicine used for each are chosen together, and several of the labels above warn that a later dose can get in the way of sleep.
What helps that conversation is a record of when you took each dose, when you felt it start and fade, and how you slept. Your pharmacist is the person for questions about the tablet itself, whether it splits, whether it can be opened, and whether to take it with food.
How ADHDose records a second dose or top-up
ADHDose records what you take. It doesn't suggest a dose or a time. If you take more than one dose a day, you can set that up when you first open the app, where it asks whether you take a top-up or second dose, or later from the Doses screen under "Add a second dose".
Pick the medication, the strength and the time. If your morning medication can be logged twice, it's first on the list, marked "Same as your morning dose". When it's the same medication the app calls it your second dose, and when it's a different one, like a short-acting tablet alongside a long-acting capsule, it's a top-up.
The second dose gets its own card at its own time, its own strength and its own reminder, and you can tap "Taken" on the reminder itself. Both doses sit on the same curve. If you count your supply, the app asks how many tablets each dose takes, and half a tablet counts as a half.
Set up both doses
ADHDose gives a second dose or top-up its own strength, time and reminder, and shows both doses on one curve.
Download free →Written by Matt, founder of ADHDose. Last updated October 2026.
Every medical statement on this page comes from a published source listed below, each medicine’s Summary of Product Characteristics on the emc and NICE’s ADHD guideline, NG87. The page itself has not been through clinical review, so use it to prepare for a conversation with your prescriber or pharmacist rather than in place of one.
- NICE guideline NG87, recommendations 1.7.3 and 1.7.20 to 1.7.22, for tailoring treatment, immediate-release preparations for flexible dosing and titration, person-to-person variation, and a morning modified-release methylphenidate with immediate-release methylphenidate later in the day. nice.org.uk/guidance/ng87/chapter/Recommendations
- NICE guideline NG87, recommendations 1.7.11 and 1.7.14, for methylphenidate preparations and adults, and dexamfetamine for some adults as an off-label use. nice.org.uk/guidance/ng87/chapter/Recommendations
- Ritalin 10mg tablets Summary of Product Characteristics, sections 3, 4.1 and 4.2, for the adult licence, 10mg twice a day at breakfast and lunch, two or three divided doses, the 80mg adult maximum and the score line. medicines.org.uk/emc/product/15987/smpc
- Medikinet 10mg tablets Summary of Product Characteristics, sections 3, 4.1 and 4.2, for the licence in children aged 6 and over, divided doses, taking with or after meals and dividing into equal halves. medicines.org.uk/emc/product/8235/smpc
- Amfexa and Dexamfetamine Sulfate Medice 10mg tablets Summary of Product Characteristics, sections 3, 4.1 and 4.2, for the licence in 6 to 17 year olds, once or twice daily dosing, not too late after lunchtime, and the score line. medicines.org.uk/emc/product/7403/smpc
- Medikinet XL Summary of Product Characteristics, section 4.2, for 20mg replacing 10mg at breakfast and 10mg at lunch in children, the small late immediate-release dose, the adult daily dose in two divided doses at morning and midday, and how the capsule is taken. medicines.org.uk/emc/product/8238/smpc
- Ritalin XL Summary of Product Characteristics, section 4.2, for once daily dosing in the morning, the extra late dose of short-acting methylphenidate, and how the capsule is taken. medicines.org.uk/emc/product/15966/smpc
- Concerta XL Summary of Product Characteristics, section 4.2, for once daily dosing in the morning and swallowing the tablet whole. medicines.org.uk/emc/product/6872/smpc
- Elvanse Summary of Product Characteristics, section 4.2, for avoiding afternoon doses, opening the capsule and not dividing a single capsule. medicines.org.uk/emc/product/14091/smpc
- Guanfacine prolonged-release tablets Summary of Product Characteristics, section 4.2, for not crushing, chewing or breaking the tablet. medicines.org.uk/emc/product/101843/smpc
- Atomoxetine capsules Summary of Product Characteristics, section 4.4, for the capsules not being intended to be opened. medicines.org.uk/emc/product/12645/smpc