Short answer: The most common ADHD medication side effects in men are trouble sleeping, lower appetite and weight loss, dry mouth, headache, nervousness and a faster heartbeat. Sexual side effects are listed on the official patient information too: “changes in sex drive or ability” for Adderall, decreased sexual desire for methylphenidate (Ritalin, Concerta) and “decreased sex drive or ability” for atomoxetine (Strattera), plus rare erections that will not go away, which are an emergency. If you notice any of these, keep taking the medicine as prescribed and talk to your prescriber; do not stop or change the dose on your own.
Key Takeaways
- Sleep and appetite come first: difficulty falling or staying asleep, loss of appetite and weight loss appear on the MedlinePlus pages for amphetamine, lisdexamfetamine, methylphenidate and atomoxetine.[1][2][3][4]
- Heart and blood pressure need monitoring: stimulant labels warn about chest pain, shortness of breath and fainting, and the atomoxetine page says blood pressure may increase during treatment.[1][3][4]
- Sexual side effects are real but drug specific: changes in sex drive or ability are listed for Adderall and Strattera, lower sex drive for methylphenidate, and prolonged erections for methylphenidate and atomoxetine.[1][3][4]
- An erection lasting more than 4 hours is an emergency: MedlinePlus tells methylphenidate users to seek medical care for an erection that lasts longer than 4 hours.[3]
- Your prescriber adjusts, you report: timing, dose, formulation or a switch between stimulant and non-stimulant are clinical decisions. Bring a written list of every medicine and supplement you take.[2][3]
- Supplements count: Panax ginseng can cause insomnia and is on Mayo Clinic’s list of supplements that may affect blood pressure, which matters if you already take a stimulant.[6][7]
Which ADHD medications are we talking about?
ADHD often continues into adulthood, and the National Institute of Mental Health describes standard treatment as medication plus psychosocial approaches such as cognitive behavioral therapy.[5] For adult men, the prescriptions fall into two groups.
Stimulants
These are central nervous system stimulants. The two main families are amphetamines, such as dextroamphetamine and amphetamine (Adderall, Adderall XR, Mydayis) and lisdexamfetamine (Vyvanse), and methylphenidate (Ritalin LA, Concerta, Jornay PM and others).[1][2][3] They usually act quickly, which is why the timing of a dose often lines up with when side effects show up.
Non-stimulants
Atomoxetine (Strattera) is the best known non-stimulant. It works differently from stimulants and has its own side effect profile, including some urinary and sexual effects that are worth knowing about for men.[4] Other non-stimulant options exist, and your prescriber can explain which fit your situation.
Common ADHD medication side effects at a glance
The table below summarizes what the MedlinePlus patient pages list for four widely used ADHD medicines. “Not listed” means the page did not mention it, not that it can never happen. Your own pharmacy leaflet and prescriber remain the final word.
| Side effect | Adderall (amphetamine) | Vyvanse (lisdexamfetamine) | Ritalin / Concerta (methylphenidate) | Strattera (atomoxetine) |
|---|---|---|---|---|
| Sleep | Trouble falling or staying asleep; not taken late afternoon or evening | Trouble falling or staying asleep; usually taken in the morning; sleepiness also listed | Difficulty falling or staying asleep | Difficulty sleeping; unusual dreams |
| Appetite and weight | Loss of appetite, weight loss | Weight loss | Reduced appetite, weight loss | Loss of appetite, weight loss |
| Heart and blood pressure | Warning on sudden death, heart attack, stroke in adults with heart problems; report chest pain, shortness of breath, fainting | Same heart warning; heart and blood pressure checked regularly | Fast, pounding or irregular heartbeat, chest pain | Fast or pounding heartbeat; blood pressure may increase |
| Sex drive and function | Changes in sex drive or ability | Not listed | Lower sex drive | Decreased sex drive or ability |
| Prolonged erection (priapism) | Not listed | Not listed | Seek care for painful erections or one lasting longer than 4 hours | Erection lasting several hours or longer |
| Fingers and toes | Pale or blue fingers or toes, numbness, unexplained wounds | Pale or blue fingers or toes; tell doctor about Raynaud’s | Numbness, pain or temperature sensitivity in fingers or toes | Burning or tingling in hands or feet |
| Other common effects | Nervousness, headache, dry mouth, constipation, diarrhea, nausea | Dizziness, headache, dry mouth, constipation, diarrhea, nausea | Nervousness, irritability, dizziness, stomach pain, dry mouth, sweating | Nausea, dizziness, tiredness, difficulty urinating, sweating, hot flashes |
Sources for the table: MedlinePlus drug pages for each medication.[1][2][3][4]
Sexual side effects of ADHD medication in men
This is the part many men search for but rarely bring up with a doctor. Here is what the official patient information actually says, drug by drug.
Adderall and other amphetamines
MedlinePlus lists “changes in sex drive or ability” among the common side effects of dextroamphetamine and amphetamine and asks you to tell your doctor if it is severe or does not go away.[1] The wording is neutral on purpose: some men notice less interest or more difficulty, others notice little change. The lisdexamfetamine (Vyvanse) page does not list a sexual side effect, but that does not rule one out, so mention any change you notice.[2]
Methylphenidate (Ritalin, Concerta)
Lower sex drive is listed as a common side effect. The page also says to get medical care right away for frequent, painful erections or an erection that lasts longer than 4 hours.[3] That second symptom is called priapism. It is uncommon, but it is a medical emergency that needs prompt treatment, so do not wait for it to pass.
Atomoxetine (Strattera)
The atomoxetine page lists “decreased sex drive or ability” and difficulty urinating as common side effects, and an “erection that lasts for several hours or longer” among the serious ones that need a call to your doctor right away.[4]
Not every change is the medication
Sleep loss, stress, alcohol, other prescriptions, blood pressure and blood sugar problems can all affect desire and performance. Untreated ADHD symptoms themselves can strain a relationship. That is why the most useful thing you can bring to an appointment is not a guess but a record: when the change started, whether it followed a new prescription or a dose increase, and whether it is worse on days you take a later dose. If you are sleeping badly on top of everything, our guide to sleep routines for men covers habits you can review with your clinician.
Heart, blood pressure and circulation
For adult men, especially those with high blood pressure, a heart condition or a family history of heart problems, the cardiovascular warnings matter most. The amphetamine and lisdexamfetamine pages warn that in adults these medicines may cause sudden death, heart attack or stroke, especially in people with heart defects or serious heart problems, and ask you to seek help right away for chest pain, shortness of breath or fainting.[1][2] The methylphenidate page lists a fast, pounding or irregular heartbeat and chest pain as serious side effects.[3] Mayo Clinic notes that stimulants such as methylphenidate “can make the heart beat faster or unevenly.”[7]
Before starting, you are asked to tell your doctor about high blood pressure, an irregular heartbeat or a heart defect in you or your family.[1][3] During treatment, the lisdexamfetamine page says your doctor will check your heart and blood pressure regularly, and the atomoxetine page says blood pressure may increase.[2][4] A home blood pressure cuff and a simple log can make those checks more useful.
Stimulant pages also describe circulation problems in the fingers and toes: paleness or a blue color, numbness, pain, sensitivity to temperature or unexplained wounds. These should be reported to your doctor right away.[1][2][3]
What to do if you notice side effects
The single most important rule: do not stop, skip or change your dose on your own. The amphetamine page specifically says not to stop without talking to your doctor, who will probably lower the dose gradually, and warns that stopping suddenly after overuse can bring severe depression and extreme tiredness.[1] The methylphenidate page asks you to get advice from your doctor or pharmacist before starting, stopping or changing any medications.[3]
Questions to bring to your prescriber
- Could the timing of my dose explain the sleep problems or evening side effects?
- Would a different formulation or a different medication be a better fit for me?
- Should my blood pressure and heart rate be checked more often?
- Are any of my other medicines or supplements likely to interact with this one?
- Which symptoms mean I should call right away or go to the emergency room?
When to get emergency care
Seek urgent care for chest pain, shortness of breath, fainting, sudden weakness or numbness of an arm or leg, slow or difficult speech, a seizure, hallucinations, swelling of the face or throat, or an erection that lasts for hours.[1][3][4]
Supplements and ADHD medication: tell your prescriber
The MedlinePlus pages ask you to keep a written list of all prescription and nonprescription medicines, vitamins, minerals and dietary supplements and to bring it to every visit.[2][3] The amphetamine page names specific products to mention, including St. John’s wort, L-glutamine, tryptophan and some heartburn and allergy medicines, and warns against combining it with MAO inhibitors.[1]
Herbal products deserve the same attention. NCCIH states that insomnia is the most common side effect of Asian ginseng (Panax ginseng) and that it might interact with certain medications.[6] Mayo Clinic includes ginseng on its list of supplements that may affect blood pressure or blood pressure medicines.[7] Since stimulants can already disturb sleep and raise heart rate, a ginseng product is something your prescriber should know about. Our article on supplements that can raise blood pressure explains this in more detail, and our Panax ginseng guide covers what the research shows about the herb.
No supplement is a substitute for ADHD treatment or a fix for medication side effects. If you take or are considering Ultra Bann, a herbal supplement by DL Bioproducts, show the full label to your prescriber or pharmacist before you start. It contains seven botanicals with every amount listed, including Panax ginseng 110 mg per capsule, taken one capsule every 2 days. You can print the complete label from our ingredients page and bring it to your appointment.
Frequently Asked Questions
What are the most common side effects of ADHD medication in men?
Trouble sleeping, loss of appetite, weight loss, dry mouth, headache, nervousness and a faster heartbeat are the most common across stimulants and atomoxetine. Some men also notice changes in sex drive or sexual function. Report anything severe or persistent to your prescriber.[1][3][4]
Can Adderall affect sex drive or erections?
Yes, it can. MedlinePlus lists “changes in sex drive or ability” as a common side effect of dextroamphetamine and amphetamine.[1] The effect varies from man to man. Tell your prescriber, who can look at timing, dose or alternatives with you rather than you adjusting on your own.
Is a long-lasting erection on ADHD medication dangerous?
Yes. An erection that lasts longer than 4 hours, or frequent painful erections, needs medical care right away. This warning appears on the methylphenidate page, and the atomoxetine page lists an erection lasting several hours or longer as a serious side effect.[3][4]
Do non-stimulant ADHD medications have fewer side effects?
They have different side effects, not necessarily fewer. Atomoxetine can still cause loss of appetite, sleep problems, a faster heartbeat, higher blood pressure, difficulty urinating and decreased sex drive or ability.[4] Which option suits you is a decision to make with your prescriber.
Can I take herbal supplements with ADHD medication?
Only after checking with your prescriber or pharmacist. Some products are named as interactions on the label, and herbs such as Panax ginseng can cause insomnia and may affect blood pressure, which overlaps with stimulant side effects.[1][6][7]
References
- Dextroamphetamine and Amphetamine. MedlinePlus Drug Information, U.S. National Library of Medicine.
- Lisdexamfetamine. MedlinePlus Drug Information, U.S. National Library of Medicine.
- Methylphenidate. MedlinePlus Drug Information, U.S. National Library of Medicine.
- Atomoxetine. MedlinePlus Drug Information, U.S. National Library of Medicine.
- Attention-Deficit/Hyperactivity Disorder (ADHD). National Institute of Mental Health.
- Asian Ginseng. National Center for Complementary and Integrative Health.
- Medications and supplements that can raise your blood pressure. Mayo Clinic.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease. This article is for information only and is not medical advice.
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