adhd100
2 of 100

Discuss methylphenidate as an adult

A guideline medicine for adults, with evidence that it improves symptoms in the short term.

High certaintyADHD evidence

Start with the time you have

1 minute

Jot down the moment in an ordinary day you would most like treatment to improve.

How sure the science is

High certainty, ADHD evidence

Enough good trials that more research is unlikely to change this number much. Measured in people with ADHD.

  • 13 trials
  • 2944 people
  • adults
  • self rated
  • about 12 weeks
  • measured on core ADHD symptoms

EBI re-estimation: 13 trials, 2944 adults, short term self-ratings; NICE NG87 1.7.11 first-line medicine. See this row on the evidence map

The number, drawn

0.340.26 to 0.43self-rated core ADHD symptom improvement in adultsvs placebo; 13 trials, 2944 people. BMJ / Gosling et al., 20250.2 is a small effect, 0.5 medium, 0.8 large. The bar is the 95% confidence interval.

Why it matters

Methylphenidate acts on brain signalling involved in attention and behaviour. In EBI, adults rated their own symptoms 0.343 SMD better than on placebo, with high certainty, and the clinicians' ratings of improvement carry moderate certainty. The trials ran about 12 weeks or to their endpoint, so long term benefit is not established. NICE lists it with lisdexamfetamine as a first-line medicine for adults, yet more people left the trials because of adverse effects than on placebo, which is why the choice is a talk about benefits and harms.

How to do it

  1. Ask your ADHD clinician plainly whether methylphenidate suits you.
  2. Say which parts of work, study or home life you want treatment to improve.
  3. Go through your medical history, any other medicines, and what worries you about side effects.
  4. Before you leave, find out what to bring to follow-up and who to contact between appointments.

Whether it suits you, and the prescribing, are decisions for a qualified clinician. Bring your health history and every medicine you take, including ones bought without a prescription.

Putting it into practice

In real life

  • Say whether your goal is getting essential work finished or keeping up with conversations.
  • Ask how the review will look at unwanted effects as well as benefits.

Watch out for

  • Common mistakeA bigger prescription is not the goal. Talk about how much it actually helps and how well you tolerate it.
  • Common mistakeShort term symptom improvement does not guarantee every life difficulty will resolve; keep other support in the plan.

Trusted guides

How we rated it

Evidence grade
A Moderate or high certainty evidence in people with ADHD, or an explicit ADHD guideline recommendation.
The number
Adults: small improvement in self-rated symptoms vs placebo over about 12 weeks (SMD 0.343) (BMJ / Gosling et al., 2025)
Benefit
89/100 The benefit score is an editorial prioritization for the general list, weighted by certainty. It is not a prediction of what will happen for you.
Effort
Some effort

Sources

Back to the hundred

General information about ADHD, not a diagnosis or an individual treatment plan. Tailoring changes the order of suggestions; it does not assess you. Medication decisions belong with you and a qualified clinician.