What ADHD medications do
ADHD medications generally fall into two categories. Stimulants work primarily by increasing dopamine and norepinephrine availability in specific brain regions involved in attention, impulse control, and executive function. Non stimulants work through different mechanisms but address similar symptoms, usually with slower onset and different side effect profiles.
The stimulant medications
Methylphenidate based
Ritalin (immediate release), Concerta (long acting), Focalin, Daytrana (patch), Quillivant (liquid), Jornay (next morning release taken evening before). Methylphenidate has been used for decades, has the longest safety track record, and works for many patients.
Amphetamine based
Adderall (immediate and extended release), Vyvanse, Dexedrine, Mydayis, Adzenys (orally disintegrating tablet). Amphetamines tend to be slightly longer lasting in many patients and work for many who do not respond well to methylphenidate.
Stimulants are typically tried first, with the specific choice based on age, prior response, family history of medication response, and other factors. Switching between stimulant categories is common when the first choice does not produce adequate response or causes unacceptable side effects.
Non stimulant medications
Atomoxetine (Strattera)
A norepinephrine reuptake inhibitor. Works gradually over 4 to 6 weeks rather than within hours. Useful for patients who do not tolerate stimulants, who have anxiety along with ADHD, or whose families prefer to avoid controlled substances.
Guanfacine (Intuniv) and clonidine (Kapvay)
Alpha 2 agonists, originally developed for blood pressure. Effective for some children, particularly those with significant impulsivity, aggression, or sleep difficulties.
Viloxazine (Qelbree)
A newer non stimulant approved for ADHD.
Bupropion
Off label use, sometimes helpful for ADHD particularly in adults with co occurring depression.
Common side effects and how to manage them
- Reduced appetite. Especially at lunch. Eating a substantial breakfast before the dose, scheduling meals strategically, and offering calorie dense snacks in the evening when the medication wears off helps.
- Sleep problems. Particularly with afternoon dosing or stimulants taken too late in the day. Timing adjustments usually help.
- Headache. Often resolves within the first 1 to 2 weeks. Adequate hydration helps.
- Stomach upset. Taking with food reduces this for most patients.
- Mood changes or irritability as the medication wears off (rebound). Sometimes managed by adjusting the timing or splitting the dose.
- Tics. Stimulants do not typically cause new tics, but they can sometimes unmask or worsen tics in susceptible children.
- Heart rate and blood pressure changes. Modest in most patients. Worth monitoring, particularly in patients with cardiovascular history.
Controlled substance considerations
Stimulant ADHD medications are controlled substances. This affects practical aspects of filling the prescription.
- Most require a new written prescription each month. Refills cannot be added to the original prescription.
- Fills cannot be done early in most circumstances. Mississippi has specific rules about how early a controlled substance refill can be picked up.
- Lost prescriptions cannot be replaced as easily as other prescriptions. Safe storage matters.
- Travel with controlled substances requires the medication in its original labeled bottle.
- Pharmacies are subject to supply availability. There have been periodic shortages of stimulant medications, particularly Adderall, in recent years.
Adult ADHD
Adult ADHD is increasingly recognized and treated. The medications are largely the same as those used in children, though dose ranges differ and some products are specifically approved for adults. Adults starting ADHD medication often need lower starting doses than they expect and benefit from gradual titration.
Where pharmacy fits
Free pharmacist consultations for ADHD patients and their parents. We help families track refill timing, identify side effect patterns, manage the shortage issue when it occurs, and coordinate between prescribers when more than one is involved. Serving Hattiesburg, the Pine Belt, Central Mississippi, and South Mississippi.
When to call a pharmacist
- You or your child is starting an ADHD medication for the first time.
- Side effects are worse than expected.
- You have noticed the medication seems to be working less well over time.
- Your child has lost weight on the medication.
- Your monthly refill is delayed due to a shortage.
- You are concerned about heart rate, blood pressure, or sleep changes since starting.
- Your child is on another medication that may interact.
This article is for general information only and is not a substitute for personalized medical advice. Before starting or changing any medication, including over the counter products and supplements, talk with your pharmacist or physician about your specific situation.
References
- CDCADHDPublic health resource
- FDATreating ADHDConsumer update
