Ritalin drug interactions: What you need to know

Ritalin drug interactions

Before you start treatment with Ritalin, tell your doctor and pharmacist about all the prescription, over-the-counter, and other medications you take. By sharing this information, you may help prevent possible interactions.

Here is a table of some of the more common drugs that can interact with Ritalin. This table does not include all drugs that may interact with Ritalin.

When to avoid Ritalin

In some cases, factors or conditions could prevent your doctor from prescribing Ritalin due to the risk of harm. These are known as contraindications. Ritalin contraindications include:

Taking monoamine oxidase inhibitors

If you take a monoamine oxidase inhibitor (MAOI), your doctor will likely not prescribe Ritalin. (MAOIs are a type of antidepressant.) Taking Ritalin with an MAOI can cause very high blood pressure. This may lead to serious effects, such as stroke, heart attack, and kidney failure.

Below are examples of MAOIs that may interact with Ritalin:

• isocarboxazid (Marplan)
• linezolid (Zyvox)
• selegiline (Emsam, Zelapar)
• phenelzine (Nardil)
• methylene blue (ProvayBlue)

If you’re taking an MAOI, your doctor will likely have you wait at least 2 weeks after stopping treatment. At this time, they may tell you it’s safe to start taking Ritalin.

Having had an allergic reaction to Ritalin or any of its ingredients

If you’ve had an allergic reaction to Ritalin or any of its ingredients, your doctor will likely not prescribe Ritalin. Taking the drug could cause another allergic reaction. You can ask them about other treatments that may be better choices for you.

Note:Before starting treatment with Ritalin, it’s important to tell your doctor if any of these contraindications apply to you. They can determine whether to prescribe Ritalin.

Ritalin interaction and alcohol

Ritalin has been reported to interact with alcohol.

Ritalin and alcohol work in opposite ways. As a result, they may mask each other’s effects. Specifically, taking Ritalin could make it hard to know the amount of alcohol you’ve consumed. And drinking alcohol could make it hard to tell whether Ritalin is working for your condition.

Drinking alcohol while taking Ritalin LA could also increase your risk of certain side effects of Ritalin LA. Examples included headache, excessive sweating, and dry mouth. This is because alcohol can cause most of the drug to be released into your body as soon as you take it.

If you have questions about avoiding alcohol while taking Ritalin, talk with your doctor or pharmacist.

Drug interactions in depth

Here’s a closer look at certain drug interactions of Ritalin.

Selective serotonin reuptake inhibitors

Selective serotonin reuptake inhibitors (SSRIs) are a type of antidepressant. They’re prescribed to treat mental health conditions, including depression and anxiety.

Interaction result. Taking Ritalin with an SSRI can increase the risk of serotonin syndrome. A high level of the chemical serotonin in the body causes this condition.

Interaction explained. Taking Ritalin with an SSRI may cause your body to break down the SSRI more slowly than usual. This could raise the level of the SSRI in your body, increasing your risk of SSRI side effects. These side effects include serotonin syndrome.

Examples of SSRI drugs. Here are some SSRIs that may interact with Ritalin:

• citalopram (Celexa)
• fluoxetine (Prozac)
• sertraline (Zoloft)

Steps you or your doctor may take. Before starting Ritalin treatment, tell your doctor if you’re taking an SSRI. They can recommend whether it’s safe for you to take these medications together. If your doctor says it’s safe, they may lower your SSRI dosage. Doing so can help lower your risk of side effects.

If you take Ritalin with an SSRI, watch for symptoms of serotonin syndrome. Examples include confusion, excessive sweating, and very high fever. If you have these symptoms, tell your doctor right away. However, if your symptoms seem severe or life threatening, call 911 or a local emergency number.

If you develop serotonin syndrome, your doctor can recommend how to manage this condition. They’ll likely have you stop treatment with Ritalin or the SSRI.

To learn more about Ritalin and SSRIs, talk with your doctor or pharmacist.

Beta-blockers

Beta-blockers can be prescribed to treat high blood pressure and other heart conditions.

Interaction result. Taking Ritalin with a beta-blocker could make the beta-blocker less effective than usual.

Interaction explained. Ritalin has the opposite effect of beta-blockers. Specifically, Ritalin treatment may cause certain heart and blood vessel problems, such as a fast heart rate and high blood pressure. Among other uses, beta-blockers treat high blood pressure and help lower the heart rate. As a result, taking Ritalin with a beta-blocker could make the beta-blocker less effective for these conditions.

Examples of beta-blockers. Here are some beta-blockers that may interact with Ritalin:

• bisoprolol
• metoprolol (Lopressor, Toprol XL, others)
• propranolol (Inderal LA, InnoPran XL, others)

Steps you or your doctor may take. Before starting Ritalin treatment, tell your doctor if you’re already taking a beta-blocker. They can recommend whether it’s safe to take these medications together. If your doctor says it’s safe, they’ll check to make sure the beta-blocker is working as usual.

To learn more about Ritalin and beta-blockers, talk with your doctor or pharmacist.

Bupropion

Bupropion (Wellbutrin SR, Wellbutrin XL) is an antidepressant that is prescribed to treat certain types of depression.

Interaction result. Taking Ritalin with bupropion may increase the risk of side effects from either drug.

Interaction explained. Both Ritalin and bupropion may cause seizures when taken individually. Taking these drugs together may further increase the risk of seizures.

Steps you or your doctor may take. Before taking Ritalin, be sure your doctor knows if you’re taking bupropion. They can advise you on whether it’s safe to take these medications together.

If your doctor prescribes Ritalin while you’re taking bupropion, they may lower your bupropion dosage. Doing so can help lower your risk of seizures.

To learn more about Ritalin and bupropion, talk with your doctor or pharmacist.

Ritalin and other interactions

Ritalin may interact with other substances, such as supplements, foods, vaccines, or even lab tests. You’ll find details below. Keep in mind that the following information does not include all other possible interactions with Ritalin.

Ritalin interactions with supplements

Before you start treatment with Ritalin, tell your doctor and pharmacist which supplements, herbs, and vitamins you take. By sharing this information with them, you may help prevent possible interactions.

Ritalin has been reported to interact with caffeine supplements. Taking Ritalin and caffeine supplements may increase the risk of certain side effects with Ritalin. Examples include high blood pressure, nausea, and insomnia.

Before you start Ritalin treatment, tell your doctor if you take caffeine supplements. They’ll likely recommend avoiding these supplements while taking Ritalin.

If you have questions about drug interactions that may affect you, ask your doctor or pharmacist.

Ritalin interactions with herbs

Ritalin has been reported to interact with the herbal supplement St. John’s wort. This supplement is used to ease symptoms of depression and certain other conditions.

Taking Ritalin with St. John’s wort can increase the risk of serotonin syndrome. A high level of the chemical serotonin in the body causes this condition. Symptoms may include confusion, excessive sweating, and a very high fever.

Before you start taking Ritalin, tell your doctor if you take St. John’s wort. They may be able to help identify an alternative to St. John’s wort that doesn’t have this risk.

Ritalin and vitamins

There are no specific reports of vitamins interacting with Ritalin or Ritalin LA. However, that doesn’t mean vitamin interactions won’t occur or be recognized in the future. Because of this, you should talk with your doctor or pharmacist before taking any vitamin product with Ritalin.

Ritalin interactions with food

Ritalin has been reported to interact with foods and drinks that contain caffeine. Examples include chocolate, green tea, coffee, and some soft drinks.

Keep in mind that the amount of caffeine in foods and drinks is typically much less than what’s in a caffeine supplement. However, foods and drinks with caffeine may still increase the risk of certain side effects with Ritalin. Examples include high blood pressure, insomnia, and nausea.

To learn more about specific foods or drinks that may interact with Ritalin, talk with your doctor.

Ritalin and vaccines

There are no specific reports of vaccines interacting with Ritalin or Ritalin LA. To learn more about getting certain vaccines while taking Ritalin, talk with your doctor.

Ritalin and lab tests

There are no specific reports of lab tests interacting with Ritalin or Ritalin LA. To learn more about getting specific lab tests while taking Ritalin, talk with your doctor.

RITALIN INTERACTION WITH CANNABIS OR CBD

Cannabis (often called marijuana) and cannabis products, such as cannabidiol (CBD), have been specifically reported to interact with Ritalin.

Taking Ritalin with cannabis or cannabis products may lead to certain side effects. Examples include severe heart damage, high blood pressure, and fast heart rate.

Before you start treatment with Ritalin, tell your doctor and pharmacist if you use cannabis. By sharing this information with them, you may help prevent possible interactions.

Note: Cannabis is illegal at a federal level but is legal in many U.S. states to varying degrees.

Ritalin and health-related interactions

Certain medical conditions and other factors may increase the risk of interactions with Ritalin. Before you take this drug, be sure to talk with your doctor about your health history. Ritalin may not be the right treatment option if you have certain medical conditions or other factors affecting your health.

Health conditions or factors that might interact with Ritalin include:

Drug dependence or alcohol use disorder. Doctors typically will not prescribe Ritalin for people with drug dependence or alcohol use disorder. These conditions may increase the risk of misuse and dependence on Ritalin. In fact, the drug has a boxed warning about this risk. To learn more, see “Boxed warning: Misuse and dependence” at the top of this article.

Heart problems, including high blood pressure. Before taking Ritalin, tell your doctor if you have high blood pressure. Also, tell them if you have a heart problem, such as an irregular heart rhythm. Ritalin may cause serious heart problems, including a heart attack, in people who have these conditions.

If you have a heart problem or high blood pressure, your doctor may prescribe a treatment other than Ritalin.

Circulation problems. Before starting Ritalin treatment, tell your doctor if you have a circulation problem. Ritalin may cause circulation problems such as Raynaud’s syndrome. If you already have a circulation problem, the drug could worsen your condition. Your doctor can recommend whether it’s safe to take Ritalin.

Certain mental health conditions. If you have a mental health condition, such as psychosis or bipolar disorder, tell your doctor before taking Ritalin. The drug may worsen these conditions. Your doctor can advise you on whether Ritalin is the right treatment option.

Pregnancy. It’s not known whether Ritalin is safe to take during pregnancy. If you’re pregnant or can become pregnant, talk with your doctor before starting Ritalin treatment. They can talk with you about the risks and benefits of taking the drug during pregnancy.

If you take Ritalin while pregnant, consider enrolling in a pregnancy registry. This registry helps collect information on the safety of Ritalin during pregnancy. To learn more, call 866-961-2388 or visit the registry website. You can also talk with your doctor.

Breastfeeding. It isn’t known whether Ritalin is safe to take while breastfeeding. The drug can pass into breast milk. However, it’s not known whether the drug may cause side effects in a child who’s breastfed. To learn more about taking Ritalin while breastfeeding, talk with your doctor.

Allergic reaction. If you’ve had an allergic reaction to Ritalin or any of its ingredients, your doctor will likely not prescribe Ritalin. Taking the drug could cause another allergic reaction. You can ask them about other treatments that may be better choices for you.

Frequently asked questions about Ritalin interactions

Preventing interactions

You can take certain steps to help prevent interactions with Ritalin. Your doctor and pharmacist are key resources. They’ll be able to answer any questions you may have before you start treatment. For example, you should plan to do the following:

• Let them know if you drink alcohol or use cannabis.
• Tell them about any other medications you take, as well as any supplements, herbs, and vitamins.
• Create a medication list, which your doctor and pharmacist can help you fill out.

It’s also important to read the Ritalin label and other paperwork that may come with the drug. The label may have colored stickers that mention an interaction. And the paperwork, sometimes called the medication guide or patient package insert, may contain details about interactions.

If Ritalin doesn’t come with paperwork, you can ask your pharmacist to print a copy. If you need help reading or understanding this information, ask your doctor or pharmacist.

You can also help prevent interactions with Ritalin by taking it exactly as your doctor prescribes.

Ritalin interactions: Summary

Ritalin (methylphenidate) is a brand-name drug used to treat ADHD and narcolepsy. It can interact with certain medications, alcohol, and some supplements.

Knowing about these Ritalin interactions can help you stay safe:

• Antidepressants (MAOIs): Doctors will usually not prescribe Ritalin if you take an MAOI antidepressant. Mixing them can cause dangerously high blood pressure, which can lead to a stroke, heart attack, or kidney failure.
• Other antidepressants (SSRIs and SNRIs): Taking Ritalin with antidepressants like SSRIs or SNRIs can cause your body to break down the antidepressant too slowly. This raises the drug levels in your body and increases your risk of side effects.
• Heart and blood pressure medications: Ritalin can interact with several types of blood pressure drugs, including beta-blockers, ACE inhibitors, and calcium channel blockers. It can make these medications less effective.
• Diabetes medications: Ritalin can reduce the effectiveness of certain diabetes drugs, including SGLT2 inhibitors and GLP-1 agonists.
• Alcohol: Ritalin and alcohol work in opposite ways and can hide each other’s effects. This makes it hard to know how much alcohol you have consumed, or if your Ritalin is working. Drinking alcohol with Ritalin LA (the long-acting capsule) is especially dangerous because it can cause the drug to release into your body all at once, leading to side effects like headache, dry mouth, and sweating.

Note: Before you start taking Ritalin, be sure to give your doctor a full list of all the medications, supplements, vitamins, and herbs you take. You should also let them know if you drink alcohol or use cannabis.