Concentra SR

Concentra SR Uses, Dosage, Side Effects, Mechanism of Action, How Long Does it Take to Work? Concentra SR is a brand name. Its generic name is Methylphenidate.

Introduction

Concentra SR is a central nervous system stimulant prescribed to treat attention deficit hyperactivity disorder (ADHD) and narcolepsy. It is available as a drug or as an extended-release oral formulation. Concentra SR works by increasing dopamine and norepinephrine levels in the brain, which help to improve attention and reduce impulsiveness and hyperactivity.

Uses

Concentra SR is used to treat the symptoms of attention deficit hyperactivity disorder (ADHD) and narcolepsy. It is also sometimes used to treat cognitive impairment associated with major depressive disorder, traumatic brain injury, and Parkinson’s disease.

Mechanism of Action

Concentra SR works by blocking the reuptake of certain neurotransmitters in the brain, such as dopamine and norepinephrine. By blocking the reuptake, it allows these neurotransmitters to stay in the brain longer, improving attention span and minimizing hyperactivity and impulsiveness.

How Long Does it Take to Work?

The effects of methylphenidate typically begin to be felt within 30 minutes of taking the drug. The effects of the medication can last up to 10 hours.

Absorption

Concentra SR is rapidly absorbed, with peak plasma levels typically reached 1-2 hours after taking the drug.

Route of Elimination

Concentra SR is primarily eliminated through the kidneys by glomerular filtration. It is also metabolized in the liver by a number of different pathways, including CYP2D6 and CYP3A4.

Dosage

The dosage of methylphenidate varies depending on the indication and severity of the condition being treated. For ADHD, the typical starting dose is 5-10 mg twice daily, with increments of 5-10 mg every three days, up to a maximum daily dose of 60 mg/day. The dose for narcolepsy is 5-60 mg/day taken in divided doses.

Administration

Concentra SR can be taken orally, either as a tablet or as an extended-release capsule or tablet. It can also be taken as a dissolved solution or as an injection.

Side Effects

Common side effects of methylphenidate include nausea, vomiting, stomachache, and decreased appetite. More serious side effects may include anxiety, agitation, aggression, hostility, dizziness, blurred vision, and insomnia.

Toxicity

Overdose of methylphenidate can lead to toxicity. Symptoms of overdose may include irregular heartbeat, seizure, coma, or death.

Precautions

Concentra SR should not be taken by patients with known or suspected cardiac problems, including arrhythmias, structural heart disease, or pain. Use of the drug may also be associated with an increased risk of psychiatric events. It is not recommended for children under 6 years of age.

Interactions

Concentra SR may interact with other medications, such as tricyclic antidepressants, selective serotonin reuptake inhibitors, antidopaminergics, and anticholinergics. It may also interact with alcohol, caffeine, tobacco, or illicit substances.

Disease Interaction

Concentra SR can interact with certain diseases or conditions. It should not be used by patients with glaucoma, Tourette’s syndrome, a history of drug or alcohol abuse, or a personal or family history of a psychotic disorder.

Drug Interactions

Concentra SR can interact with certain medications. These include blood pressure medications, antipsychotics, anticonvulsants, monoamine oxidase inhibitors, and certain antibiotics.

Food Interactions

Concentra SR may interact with certain foods, making them less effective. These include citrus fruits, foods containing tyramine, and foods high in fat or sugar.

Pregnancy Use

Concentra SR is classified as a pregnancy category C drug, which means there is an increased risk of developmental problems in the fetus if it is used during pregnancy.

Lactation Use

Concentra SR is not recommended for use during lactation as it can be passed into breast milk and may cause adverse effects in the nursing infant.

Acute Overdose

Symptoms of an acute overdose of methylphenidate include agitation, confusion, dilated pupils, fever, hallucinations, seizures, and coma. Treatment for an acute overdose involves immediate medical attention and supportive measures.

Contraindication

Concentra SR should not be used by people who have had a known reaction to the drug or have a known hypersensitivity to any of its components.

Use Direction

Concentra SR should be taken exactly according to the directions given by the prescriber. It should not be taken in larger amounts or for longer periods than prescribed.

Storage Conditions

Concentra SR should be stored at room temperature, away from direct light and moisture. Keep out of the reach of children.

Volume of Distribution

The volume of distribution of methylphenidate is 0.11 L/kg.

Half-Life

The half-life of methylphenidate is about 3.5 hours.

Clearance

The renal clearance of methylphenidate is 68 mL/min.

Here you find in details version of Concentra SR

Some Frequently Asked Questions About Concentra SR

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What is Concentra SR?

Concentra SR (also known as Ritalin) is a psychostimulant medication used to treat attention deficit hyperactivity disorder (ADHD) and narcolepsy. It is a first line medication for ADHD.

How does Concentra SR work?

Concentra SR works by increasing the activity of neurotransmitters in the brain, particularly dopamine and norepinephrine. This leads to an increase in mental alertness and improved concentration.

Who is Concentra SR prescribed to?

Concentra SR is primarily prescribed to treat attention deficit hyperactivity disorder (ADHD) and narcolepsy.

Does Concentra SR have any side effects?

Common side effects of Concentra SR include dizziness, headache, nausea, irritability, vomiting, trouble sleeping, and an increased heart rate. It is important to talk to a doctor before taking any medication to make sure it is safe.

Can children take Concentra SR?

Concentra SR can be prescribed to both adults and children to treat ADHD. However, it is important to talk to a doctor before giving any medication to a child.

Can adults take Concentra SR?

Concentra SR can be prescribed to both adults and children to treat ADHD. However, it is important to talk to a doctor before taking any medication to make sure it is safe.

How long does it take for Concentra SR to start working?

It usually takes about 1-2 hours for Concentra SR to start working. The effects may last for up to 4-6 hours.

Is Concentra SR safe for long-term use?

It is not recommended to use Concentra SR for long-term use. Long-term use of stimulant medications can lead to dependence, tolerance, and withdrawal symptoms.

What happens if I miss a dose of Concentra SR?

If you miss a dose of Concentra SR, you should take it as soon as you remember. Do not double up on doses or take extra doses. Taking more than prescribed may result in serious side effects.

Can Concentra SR be used to treat depression?

Concentra SR is not usually prescribed to treat depression. It is primarily used to treat attention deficit hyperactivity disorder (ADHD) and narcolepsy.

Can Concentra SR be used to treat anxiety?

Concentra SR is not usually prescribed to treat anxiety. It is primarily used to treat attention deficit hyperactivity disorder (ADHD) and narcolepsy.

Can I drink alcohol while taking Concentra SR?

It is not recommended to drink alcohol while taking Concentra SR. Alcohol can increase the side effects of the medication and may make it less effective.

Can I take Concentra SR with other medications?

It is important to talk to a doctor before taking any other medications while taking Concentra SR. Some medications may interact with each other, leading to serious side effects.

Are there any natural alternatives to Concentra SR?

Yes, there are natural alternatives to Concentra SR that can be used to treat ADHD. Some options include meditation, yoga, diet and lifestyle changes, and herbs such as ginkgo biloba, bacopa monnieri, and Rhodiola rosea.

Can I take Concentra SR while pregnant?

It is not advised to take Concentra SR while pregnant or nursing. Stimulant medications can be harmful to the developing baby and it is important to talk to a doctor before taking any medication during pregnancy.

Can Concentra SR cause weight loss?

Yes, Concentra SR can cause weight loss. It increases the activity of neurotransmitters in the brain which leads to an increase in mental alertness and improved concentration, which can lead to reduced appetite.

Is Concentra SR a controlled substance?

Yes, Concentra SR is a controlled substance in the United States and some other countries due to its potential for abuse and addiction.

What is the difference between Concentra SR and Adderall?

Concentra SR and Adderall are both psychostimulant medications used to treat attention-deficit hyperactivity disorder (ADHD). Concentra SR is usually a longer-acting medication than Adderall, but both medications are effective in treating ADHD.

Does Concentra SR cause a sensation of euphoria?

Yes, some people may experience a feeling of euphoria when taking Concentra SR. This is one of the main reasons why the drug is abused and why it is a controlled substance in many countries.

How does Concentra SR affect sleep?

Concentra SR may make it harder to fall asleep or stay asleep. People who are taking Concentra SR should talk to their doctor about any sleep problems they are experiencing.

Does Concentra SR interact with caffeine?

Yes, caffeine can increase the side effects of Concentra SR. It is best to avoid caffeine while taking Concentra SR to avoid any undue side effects.

Can Concentra SR cause high blood pressure?

Yes, Concentra SR can cause increases in blood pressure. It is important to talk to a doctor before taking Concentra SR to make sure it is safe, especially if you have a history of high blood pressure.

Is Concentra SR habit-forming?

Yes, Concentra SR is a habit-forming medication. Taking more than prescribed or taking it for a long period of time can lead to psychological or physical dependence.

Is Concentra SR safe for adults over 65?

Concentra SR is safe for adults over 65, however, it is important to talk to a doctor before taking any medication to make sure it is safe.

Can I drive a car after taking Concentra SR?

It is not recommended to drive a car until you know how Concentra SR affects you. This medication may cause drowsiness, dizziness, or impaired judgment, which could lead to an accident.

How soon before a job should I take Concentra SR?

It is best to take Concentra SR 1-2 hours before starting a job. Taking it any earlier may lead to an increase in side effects.

How long does it take for Concentra SR to leave the body?

Concentra SR usually leaves the body within 24 hours of taking the last dose. However, it may take longer for some people to fully metabolize the medication.

Does Concentra SR cause constipation?

Yes, Concentra SR can cause constipation. Drinking plenty of water and eating high-fiber foods can help prevent constipation.

Can Concentra SR be used to treat insomnia?

No, Concentra SR is not usually prescribed to treat insomnia. It is primarily used to treat attention deficit hyperactivity disorder (ADHD) and narcolepsy.

Can Concentra SR cause paranoia?

Yes, Concentra SR can cause paranoia. It is important to talk to a doctor if you are feeling paranoid or if you experience any other unusual side effects.

Can Concentra SR be used for weight loss?

Concentra SR is not usually prescribed for weight loss. It is primarily used to treat attention deficit hyperactivity disorder (ADHD) and narcolepsy.

Can I take Concentra SR with antidepressants?

It is important to talk to your doctor before taking any other medications while taking Concentra SR. Some medications including antidepressants can interact with Concentra SR, leading to serious side effects.

Does Concentra SR cause depression?

Concentra SR can cause depression in some people, especially when taken for a long-term period. It is important to talk to a doctor if you are feeling depressed while taking Concentra SR.

Does Concentra SR have stimulant effects?

Yes, Concentra SR is a stimulant medication that increases activity in the brain to help with focus and concentration.

Does Concentra SR have any long-term effects?

Long-term use of Concentra SR may lead to dependence, tolerance, and withdrawal symptoms. It is important to talk to a doctor before taking any medication, and to use caution when using Concentra SR.

What kind of drug is Concentra SR?

Concentra SR is a psychostimulant medication used to treat attention deficit hyperactivity disorder (ADHD) and narcolepsy.

Can Concentra SR be taken with other medications?

It is important to talk to a doctor before taking any other medications while taking Concentra SR. Some medications may interact with each other, leading to serious side effects.

Is Concentra SR safe for children?

Concentra SR can be prescribed to both adults and children to treat ADHD. However, it is important to talk to a doctor before giving any medication to a child.

Can Concentra SR be used to treat bipolar disorder?

Concentra SR is not usually prescribed to treat bipolar disorder. It is primarily used to treat attention deficit hyperactivity disorder (ADHD) and narcolepsy.

Does Concentra SR cause liver damage?

Concentra SR has not been shown to cause liver damage. However, if you experience any pain or other symptoms that could indicate liver damage while taking Concentra SR, you should talk to your doctor immediately.

Can Concentra SR be used to treat narcolepsy?

Yes, Concentra SR is used to treat narcolepsy. It works by increasing the activity of neurotransmitters in the brain, leading to an increase in mental alertness and improved concentration.

Can Concentra SR be used to treat anxiety disorder?

Concentra SR is not usually prescribed to treat anxiety disorder. It is primarily used to treat attention deficit hyperactivity disorder (ADHD) and narcolepsy.

Can Concentra SR be used to treat ADD?

Yes, Concentra SR is used to treat attention deficit hyperactivity disorder (ADHD), which is commonly referred to as ADD.

Does Concentra SR cause impulsivity?

Concentra SR can increase impulsivity in some people. This is one of the reasons why it is used to treat attention deficit hyperactivity disorder (ADHD).

Can Concentra SR be used to treat insomnia?

No, Concentra SR is not usually prescribed to treat insomnia. It is primarily used to treat attention deficit hyperactivity disorder (ADHD) and narcolepsy.

Does Concentra SR cause suicidal thoughts?

Yes, Concentra SR can cause suicidal thoughts and behavior. It is important to talk to a doctor immediately if you experience any changes in behavior or mood while taking Concentra SR.

Can Concentra SR cause hallucinations?

Yes, Concentra SR can cause hallucinations in some people. It is important to talk to a doctor immediately if you experience any hallucinations while taking Concentra SR.