Bottom line: Yes, adults can have ADHD, and it can be diagnosed and treated at any age. At Lifecare Primary Medical in Richmond, TX, an adult ADHD evaluation combines a detailed history, standardized questionnaires and a medical review to rule out look-alike conditions. If ADHD is confirmed, treatment usually blends medication, when appropriate, with practical strategies and regular follow-up to check how well it works and protect your heart health.
Clinical guide
What adult ADHD looks like
Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental condition that starts in childhood, but for many people it continues into adulthood, and a large share of adults are not diagnosed until later in life. In a 2023 CDC survey, about 6% of U.S. adults, roughly 15.5 million people, reported a current ADHD diagnosis, and more than half of them were first diagnosed at age 18 or older. In adults, hyperactivity often softens into inner restlessness, while trouble with attention, planning and follow-through tends to stay.
ADHD is more than ordinary distraction. According to the National Institute of Mental Health (NIMH), symptoms are more frequent and more severe than everyday forgetfulness, last at least six months and cause problems in at least two areas of life, such as home and work. Common signs in adults include:
- Difficulty staying focused, especially on long, detailed or routine tasks
- Losing things and forgetting appointments, bills or promises
- Trouble organizing work, managing time and meeting deadlines
- Starting many projects but finishing few
- Restlessness, fidgeting or difficulty sitting through meetings
- Interrupting others, impulsive spending or quick decisions you later regret
ADHD is often missed in childhood, especially in girls and women, whose symptoms may be quieter and mostly inattentive. It is never too late to be evaluated. If you are not sure whether stress, anxiety or ADHD is behind your trouble concentrating, our article on feeling anxious and unable to focus is a helpful place to start.
How we evaluate ADHD in adults
There is no single blood test or brain scan that diagnoses ADHD. The diagnosis is clinical, and because symptoms must have begun before age 12, your provider will ask about your childhood as well as your life today. NIMH notes that adults need at least five symptoms of inattention or hyperactivity-impulsivity, compared with six for children. A careful evaluation at Lifecare Primary Medical includes:
- A detailed history. When your symptoms started, how they affect work, school, driving, finances and relationships, and what you have already tried.
- Standardized questionnaires. Validated rating scales help measure symptoms consistently. With your permission, input from a partner or family member who knows you well can add context.
- A medical review. Sleep problems, depression, anxiety, thyroid disease, substance use and some medications can mimic ADHD or make it worse. NIMH reports that sleep problems affect up to 70% of adults with ADHD.
- In-office testing when needed. Blood work drawn in our office, such as a metabolic panel, can check for medical causes of fatigue and poor focus, and an in-office EKG may be recommended before stimulant treatment if you have heart symptoms or risk factors.
When the picture is complex, we may recommend further testing with a psychologist or psychiatrist. Our goal is an accurate answer, not a quick label.
Evidence-based treatment options
Treatment is tailored to each adult. NIMH notes that the most common approaches are medication and psychotherapy, such as cognitive behavioral therapy, and that combining them often works best. Finding the right medication and dose can take a few adjustments.
| Approach | Examples | What to know |
|---|
| Stimulant medication | Methylphenidate and amphetamine-based medicines | Work quickly and are the most commonly prescribed option. They are controlled substances and need regular monitoring of blood pressure, heart rate, sleep and appetite. |
| Non-stimulant medication | Atomoxetine, viloxazine | Take several weeks to reach full effect. A useful choice when stimulants cause side effects or are not a good fit. |
| Skills and therapy | Cognitive behavioral therapy, ADHD coaching | Build practical systems for planning, time management and follow-through. Helpful with or without medication. |
| Daily habits | Sleep routines, exercise, planners and reminders | Support focus and make every other treatment work better. |
The CDC survey found that about half of adults with ADHD had been prescribed ADHD medication in the past year, and many who took stimulants had trouble filling prescriptions during shortages. We plan ahead with you if your pharmacy has supply problems.
Safe prescribing and follow-up
In 2023 the FDA required updated boxed warnings for all prescription stimulants describing the risks of misuse, abuse, addiction and overdose, and advised clinicians to assess those risks before prescribing and to monitor patients closely. The FDA also points out that most people who misuse stimulants get them from friends or family, so never share your medication. Some ADHD medications are controlled substances, and prescriptions follow Texas and federal rules.
Because our team practices internal medicine, we treat ADHD in the context of your whole health, including blood pressure, heart health, sleep, mood and every other medication you take. Expect closer visits while we start or adjust a medicine, then regular check-ins to confirm it is still working, side effects are manageable and your vital signs stay in a healthy range. Telehealth visits are available, so ask whether your follow-up can be done by video.
What to expect at our Richmond clinic
- Request a visit. Call or request an appointment online. Walk-ins and same-day visits are welcome during office hours, but a scheduled visit gives us time for a full ADHD evaluation.
- Your evaluation. Bring a list of medications, any past school or testing records and notes about how symptoms affect your day.
- Your plan. We explain what we found and discuss medication, therapy, coaching or referral, and choose the next steps together.
- Follow-up. We track how you feel and function, adjust treatment and keep your heart and blood pressure checks up to date.
Care is available in English and Spanish, and Samira Khan, MD, also speaks Hindi, Punjabi and Urdu. We see adults 18 and older; children with ADHD are best served by a pediatrician or child specialist. ADHD care fits naturally into our broader internal medicine and primary care services, and you can meet our providers before your visit.
When to seek urgent care
Call 911 or go to the nearest emergency department for chest pain, fainting, a racing or irregular heartbeat that does not settle, or signs of stroke, especially after starting or changing a stimulant. If you are having thoughts of harming yourself, call or text 988 to reach the Suicide and Crisis Lifeline at any time. For new side effects that are not an emergency, such as poor sleep, low appetite or feeling on edge, call our office the same day.
