Adzenys XR Side Effects: What to Expect and When to Call Your Doctor

Understanding Adzenys XR Side Effects

If you or your child has been prescribed Adzenys XR for ADHD, it's natural to wonder about side effects. Like all stimulant medications, Adzenys XR can cause a range of effects — most are mild and manageable, but some require immediate medical attention.

This guide covers the most common side effects, the serious ones to watch for, and practical tips for managing them.

What Is Adzenys XR?

Adzenys XR is an extended-release orally disintegrating tablet containing amphetamine. It's approved for treating ADHD in patients aged 6 and older. The tablet dissolves on your tongue without water, making it a good option for people who have difficulty swallowing pills. For a deeper look at this medication, see our guide on what Adzenys XR is, its uses, and dosage.

Common Side Effects

Most people who take Adzenys XR experience at least one of these common side effects, especially during the first few weeks of treatment. They usually improve as your body adjusts:

• Decreased appetite — This is the most frequently reported side effect. You may notice less interest in food, particularly during the day when the medication is active.
• Insomnia or trouble sleeping — Because Adzenys XR is a stimulant, it can make it hard to fall asleep. Taking it early in the morning can help.
• Dry mouth — Drinking water throughout the day usually helps with this.
• Nausea or stomach pain — Some people feel nauseous or have abdominal discomfort, especially when first starting the medication.
• Weight loss — Related to decreased appetite. Your doctor may monitor your weight, especially in children.
• Irritability or mood changes — Some patients feel more irritable or emotionally sensitive, particularly as the medication wears off in the evening.
• Dizziness — Mild dizziness can occur, usually when standing up quickly.
• Increased heart rate — A slight increase in heart rate is common with stimulants.

Serious Side Effects

While rare, some side effects of Adzenys XR are serious and require immediate medical attention. Call your doctor or go to the emergency room if you experience:

• Chest pain or shortness of breath — Stimulant medications can affect the heart. Any chest pain, difficulty breathing, or fainting should be evaluated immediately.
• Signs of psychosis or mania — New or worsening hallucinations, paranoia, delusions, or manic behavior. This can happen even in patients without a history of psychiatric illness.
• Severe aggression or hostility — Especially in children and adolescents.
• Peripheral vasculopathy — Cold, numb, or painful fingers or toes, or changes in skin color (Raynaud's phenomenon). Report these symptoms to your doctor.
• Seizures — Stimulants may lower the seizure threshold. If you have a seizure, seek emergency care.
• Serotonin syndrome — If you take Adzenys XR with certain antidepressants (SSRIs, SNRIs), watch for agitation, rapid heartbeat, high body temperature, muscle rigidity, or loss of coordination. This is a medical emergency. See our guide on Adzenys XR drug interactions for more details.

Side Effects in Specific Populations

Children (Ages 6–12)

Children may be more sensitive to appetite suppression and growth effects. Long-term use of stimulants can slow growth in height and weight. Your child's pediatrician should monitor growth regularly.

Adolescents and Adults

Adults may notice cardiovascular effects more, including elevated blood pressure and heart rate. If you have pre-existing heart conditions, your doctor should monitor you closely.

Pregnancy and Breastfeeding

Adzenys XR is not recommended during pregnancy. Amphetamines are excreted in breast milk. Talk to your doctor about the risks and benefits if you are pregnant, planning to become pregnant, or breastfeeding.

How to Manage Side Effects

Many side effects can be managed with simple adjustments:

• Take it early in the morning — This gives the medication time to wear off before bedtime, reducing insomnia.
• Eat before taking it — Having breakfast before your dose can help reduce nausea and ensure you get adequate nutrition before appetite suppression kicks in.
• Stay hydrated — Drink plenty of water throughout the day to combat dry mouth and stay healthy.
• Plan nutritious meals and snacks — If appetite is reduced during the day, focus on calorie-dense snacks and a larger evening meal when the medication wears off.
• Monitor blood pressure — If you have hypertension or are concerned about cardiovascular effects, check your blood pressure regularly at home.
• Talk to your doctor about dose adjustments — Sometimes lowering the dose can reduce side effects while still managing ADHD symptoms effectively.

If side effects are bothering you, don't stop taking Adzenys XR on your own. Talk to your doctor first. They may adjust your dose or suggest an alternative medication.

Final Thoughts

Most Adzenys XR side effects are mild and improve over time. The key is knowing what to watch for and staying in communication with your doctor. Serious side effects are uncommon but important to recognize.

If you're currently taking Adzenys XR and having trouble finding it at your pharmacy, Medfinder can help you locate it in stock near you. Don't let a gap in your prescription lead to unnecessary withdrawal or symptom rebound.