METHYLPHENIDATE SUSTAINED-ACTION - ORAL

PHONETIC PRONUNCIATION: (METH-il-FEN-i-date)

COMMON BRAND NAME(S): Metadate CD, Ritalin LA

GENERIC NAME(S): methylphenidate HCl

Uses

USES: This medication is used to treat attention deficit hyperactivity disorder - ADHD. It works by changing the amounts of certain natural substances in the brain. Methylphenidate belongs to a class of drugs known as stimulants. It can help increase your ability to pay attention, stay focused on an activity, and control behavior problems. It may also help you to organize your tasks and improve listening skills.

How to use METHYLPHENIDATE SUSTAINED-ACTION - ORAL

HOW TO USE: Read the Medication Guide provided by your pharmacist before you start taking methylphenidate and each time you get a refill. If you have any questions, ask your doctor or pharmacist. There are different brands and forms of this medication available. They may not have the same effects and may not be interchangeable. Do not change brands or forms without consulting your doctor or pharmacist. Take this medication by mouth as directed by your doctor, usually once daily before or with breakfast. If you have upset stomach, you may take this medication with food. Taking this medication late in the day may cause trouble sleeping (insomnia). Do not break, crush, or chew this medication. Doing so can release all of the drug at once, increasing the risk of side effects. Swallow the capsules whole. If you have trouble swallowing the capsule, you may open the capsule and carefully sprinkle its contents on a spoonful of cool applesauce. Swallow all of the mixture right away without chewing it. Then drink a glass of cool liquid to make sure you have swallowed all of the dose. Do not prepare the mixture ahead of time. Do not drink alcoholic beverages while you are taking this medication. Drinking alcohol may increase the amount of this medication in your body which may cause serious side effects. Take this medication regularly to get the most benefit from it. To help you remember, take it at the same time each day. The dosage is based on your medical condition and response to treatment. Your doctor may direct you to gradually increase or decrease your dose. Also, if you have used it for a long time, do not suddenly stop using this drug without consulting your doctor. This medication may cause withdrawal reactions, especially if it has been used regularly for a long time or in high doses. In such cases, withdrawal symptoms (such as depression, suicidal thoughts, or other mental/mood changes) may occur if you suddenly stop using this medication. To prevent withdrawal reactions, your doctor may reduce your dose gradually. Consult your doctor or pharmacist for more details, and report any withdrawal reactions right away. When used for a long time, this medication may not work as well. Talk with your doctor if this medication stops working well. Though it helps many people, this medication may sometimes cause addiction. This risk may be higher if you have a substance use disorder (such as overuse of or addiction to drugs/alcohol). Take this medication exactly as prescribed to lower the risk of addiction. Ask your doctor or pharmacist for more details. Tell your doctor if your condition does not improve or if it worsens.

Side Effects

SIDE EFFECTS: Nervousness, trouble sleeping, loss of appetite, weight loss, dizziness, nausea, vomiting, or headache may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly. Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects. This medication may raise your blood pressure. Check your blood pressure regularly and tell your doctor if the results are high. Tell your doctor right away if you have any serious side effects, including: signs of blood flow problems in the fingers or toes (such as coldness, numbness, pain, or skin color changes), unusual wounds on the fingers or toes, fast/pounding/irregular heartbeat, mental/mood/behavior changes (such as agitation, aggression, mood swings, abnormal thoughts, thoughts of suicide), uncontrolled muscle movements (such as twitching, shaking), sudden outbursts of words/sounds that are hard to control, vision changes (such as blurred vision), slow healing sores/ulcers on the tips of fingers/toes. Get medical help right away if you have any very serious side effects, including: fainting, seizure, symptoms of a heart attack (such as chest/jaw/left arm pain, shortness of breath, unusual sweating), symptoms of a stroke (such as weakness on one side of the body, slurred speech, sudden vision changes, confusion). Rarely, males (including young boys and teens) may have a painful or prolonged erection lasting 4 or more hours while using this medication. Caregivers/parents should also be watchful for this serious side effect in boys. If a painful or prolonged erection occurs, stop using this drug and get medical help right away, or permanent problems could occur. Ask your doctor or pharmacist for more details. A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing. This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist. In the US - Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch. In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

Precautions

PRECAUTIONS: See also Warning section. Before taking methylphenidate, tell your doctor or pharmacist if you are allergic to it; or to dexmethylphenidate; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details. Before using this medication, tell your doctor or pharmacist your medical history, especially of: high blood pressure, blood circulation problems (such as Raynaud's disease), glaucoma, heart problems (such as irregular heartbeat, heart failure, previous heart attack, problems with heart structure), family history of heart problems (such as sudden cardiac death, irregular heartbeat), mental/mood conditions (especially anxiety, tension, agitation), personal/family history of mental/mood disorders (such as bipolar disorder, depression, psychosis, suicidal thoughts), personal/family history of uncontrolled muscle movements (motor tics, Tourette's syndrome), overactive thyroid (hyperthyroidism), seizure disorder, throat/stomach/intestinal problems (such as narrowing/blockage). This drug may make you dizzy. Alcohol or marijuana can make you more dizzy. Do not drive, use machinery, or do anything that needs alertness until you can do it safely. Avoid alcoholic beverages. Talk to your doctor if you are using marijuana. Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products). Some brands of this medication may contain sugar. Caution is advised if you have diabetes, fructose intolerance, or any other condition that requires you to limit/avoid sugar in your diet. Ask your doctor or pharmacist about using this medication safely. If used for a long time, this drug may affect a child's growth rate, weight, and final adult height. To reduce the risk, the doctor may recommend briefly stopping the medication from time to time. Check the child's weight and height regularly, and consult your doctor or pharmacist for more details. Older adults may be more sensitive to the side effects of this drug, especially trouble sleeping, weight loss, or chest pain. During pregnancy, methylphenidate should be used only when clearly needed. Discuss the risks and benefits with your doctor. This medication passes into breast milk. Consult your doctor before breast-feeding.

Interactions

DRUG INTERACTIONS: Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval. Taking MAO inhibitors with this medication may cause a serious (possibly fatal) drug interaction. Avoid taking MAO inhibitors (isocarboxazid, linezolid, methylene blue, moclobemide, phenelzine, procarbazine, rasagiline, safinamide, selegiline, tranylcypromine) during treatment with this medication. Most MAO inhibitors should also not be taken for two weeks before treatment with this medication. Ask your doctor when to start or stop taking this medication. Avoid alcohol when using this medication because it may cause the medication to be released too quickly and increase the risk of side effects. Some brands of this drug may be affected by a change in the amount of acid in your stomach. If you are taking a product to decrease stomach acid (such as antacids, ranitidine, omeprazole), check with your pharmacist to see if your brand may be affected. Methylphenidate is very similar to dexmethylphenidate. Do not use medications containing dexmethylphenidate while using methylphenidate. This medication may interfere with certain medical/laboratory tests (including brain scan for Parkinson's disease), possibly causing false test results. Make sure laboratory personnel and all your doctors know you use this drug.

Overdose

OVERDOSE: If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center. Symptoms of overdose may include: vomiting, agitation, confusion, sweating, flushing, muscle twitching, hallucinations, seizures, loss of consciousness.

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Warning

WARNING: Misuse or abuse of methylphenidate can result in serious (possibly fatal) heart and blood pressure problems. This medication can be habit-forming and should be used cautiously by people who have mental/mood disorders or a substance use disorder (such as overuse of or addiction to drugs/alcohol). Before using this medication, tell your doctor if you have a personal or family history of a substance use disorder. Do not increase your dose, use it more often, or use it for a longer time or in a different way than prescribed. Doing so may result in a decrease in the effect of this drug, drug dependence, or abnormal thoughts/behavior. Your doctor may monitor you for a while after the medication is stopped, especially if you have taken this drug for a long time or in high doses. (See also How to Use section.)

Disclaimer

IMPORTANT: HOW TO USE THIS INFORMATION: This is a summary and does NOT have all possible information about this product. This information does not assure that this product is safe, effective, or appropriate for you. This information is not individual medical advice and does not substitute for the advice of your health care professional. Always ask your health care professional for complete information about this product and your specific health needs.