Children treated for ADHD with stimulants such as methylphenidate or amphetamine often lose appetite, which can lead to weight loss and slower growth. Careful tracking of growth and meals lets the child keep the benefits of treatment while staying well nourished.
Key symptoms
- Low appetite, especially at lunch
- Weight loss or not gaining weight
- Stomachache or headache after doses
- Trouble sleeping
- Irritability as the medicine wears off
What you find on exam
- Weight, height and BMI plotted on growth charts
- Heart rate and blood pressure
- Signs of poor nutrition
- Check for other causes of weight loss
Tests
- Growth chart review with percentiles over time
- Food and medicine diary
- Blood count, metabolic panel or thyroid tests if weight loss is unexplained
Treatment basics
- Give the dose with or after breakfast
- Calorie-dense snacks and a larger evening meal
- Adjust the dose or timing, or try another medicine
- Drug holidays on weekends or summers in selected cases
- Dietitian referral and regular growth checks
Red flags
- Crossing two major percentile lines on the growth chart
- Chest pain, fainting or palpitations
- Signs of an eating disorder or severe mood change
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Sources: Open RN, Nursing Pharmacology 2e; NCSBN 2026 NCLEX-RN Test Plan; NCCPA PANCE Content Blueprint. Written by Making Synapses. Making Synapses is not affiliated with these organizations.