ADHD FAQs – Your Questions Answered
Here are answers to the questions we get asked most often about ADHD assessment, diagnosis, and treatment in the UK.
Frequently asked questions
How long does an ADHD assessment take?
A private ADHD assessment typically takes 60–90 minutes for the clinical interview. Some clinics conduct assessments over two sessions. You will also complete rating scales before or after the session.
How much does a private ADHD assessment cost in the UK?
Private ADHD assessments in the UK range from approximately £350 to £1,500. The variation reflects the qualifications of the assessing clinician, whether a full neuropsychological battery is included, and what the fee covers (report, feedback session, GP letter).
Can I get a free ADHD assessment in the UK?
Yes — through the NHS directly (long wait) or via the NHS Right to Choose scheme (shorter wait, free, funded by the NHS). Right to Choose is only available to patients registered with a GP in England.
What medication is prescribed for ADHD in the UK?
The most commonly prescribed ADHD medications in the UK are methylphenidate (Ritalin, Concerta, Medikinet) and lisdexamfetamine (Elvanse). Non-stimulant options include atomoxetine (Strattera) and guanfacine (Intuniv).
Can women and girls have ADHD?
Yes. ADHD affects people of all genders. Women and girls are historically underdiagnosed because the inattentive presentation (which is more common in women) is less visible than the hyperactive type. ADHD in women often presents as anxiety, people-pleasing, perfectionism, and emotional dysregulation.
Does ADHD affect mental health?
ADHD frequently co-occurs with anxiety, depression, and OCD. It is important that a comprehensive assessment screens for these conditions, as they can both mimic and be caused by ADHD.
What is the difference between ADHD and ADD?
ADD (Attention Deficit Disorder) was the older term for the inattentive presentation of ADHD. It is no longer used in clinical diagnosis. The current terminology is ADHD, Predominantly Inattentive Presentation.
Can you be diagnosed with ADHD as an adult?
Yes. Adult ADHD diagnosis is increasingly common. DSM-5 requires that symptoms were present before age 12, but this can be established retrospectively through clinical interview and collateral history. Many adults are not diagnosed until their 30s, 40s, or later.