Sunday 2 September 2012

levetiracetam



lee-va-tye-RA-se-tam


Commonly used brand name(s)

In the U.S.


  • Keppra

  • Keppra XR

Available Dosage Forms:


  • Tablet, Extended Release

  • Tablet

  • Solution

Therapeutic Class: Anticonvulsant


Uses For levetiracetam


Levetiracetam is used to help control certain types of seizures in the treatment of epilepsy. levetiracetam cannot cure epilepsy and will only work to control seizures for as long as you continue to use it.


levetiracetam is available only with your doctor's prescription.


Before Using levetiracetam


In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For levetiracetam, the following should be considered:


Allergies


Tell your doctor if you have ever had any unusual or allergic reaction to levetiracetam or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.


Pediatric


Appropriate studies have not been performed on the relationship of age to the effects of levetiracetam oral solution or tablets in children younger than 1 month of age, and levetiracetam extended-release tablets in teenagers and children younger than 16 years of age. Safety and efficacy have not been established.


Geriatric


Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of levetiracetam in the elderly. However, elderly patients are more likely to have age-related kidney problems, which may require an adjustment in the dose for patients receiving levetiracetam.


Pregnancy








Pregnancy CategoryExplanation
All TrimestersCAnimal studies have shown an adverse effect and there are no adequate studies in pregnant women OR no animal studies have been conducted and there are no adequate studies in pregnant women.

Breast Feeding


There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.


Interactions with Medicines


Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking levetiracetam, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.


Using levetiracetam with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.


  • Ketorolac

Using levetiracetam with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.


  • Carbamazepine

  • Ginkgo

Interactions with Food/Tobacco/Alcohol


Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.


Other Medical Problems


The presence of other medical problems may affect the use of levetiracetam. Make sure you tell your doctor if you have any other medical problems, especially:


  • Depression, history of or

  • Mental illness, history of—Use with caution. May make these conditions worse.

  • Kidney problems—Use with caution. The effects may be increased because of slower removal of the medicine from the body.

Proper Use of levetiracetam


Take levetiracetam only as directed by your doctor, to help your condition as much as possible. Do not take more of it, do not take it more often, and do not take it for a longer time than your doctor ordered. Also, do not change your dose without checking first with your doctor.


levetiracetam comes with a Medication Guide. It is very important that you read and understand this information. Be sure to ask your doctor about anything you do not understand.


Levetiracetam may be taken with or without food or on a full or empty stomach. However, if your doctor tells you to take the medicine a certain way, take it exactly as directed. You should try to take levetiracetam at the same time each day.


Swallow the tablet or the extended-release tablet whole. Do not break, crush, or chew it. There is an oral liquid form of levetiracetam if you or your child cannot swallow the tablets.


Measure the oral liquid with a marked measuring spoon, dropper, oral syringe, or medicine cup. The average household teaspoon may not hold the right amount of liquid. If you have any questions about this, ask your doctor or pharmacist.


levetiracetam can be used with other seizure medicines. Keep using all of your seizure medicines unless your doctor tells you to stop.


Take only the form of levetiracetam that your doctor prescribed. If you refill your prescription and your pills look different, do not take the medicine and tell your doctor or pharmacist right away.


Dosing


The dose of levetiracetam will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of levetiracetam. If your dose is different, do not change it unless your doctor tells you to do so.


The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.


  • For partial seizures:
    • For oral dosage form (extended-release tablets):
      • Adults and teenagers 16 years of age and older—At first, 1000 milligrams (mg) once a day. Your doctor may increase your dose as needed and tolerated. However, the dose is usually not more than 3000 mg per day.

      • Teenagers and children younger than 16 years of age—Use and dose must be determined by your doctor.


    • For oral dosage forms (solution or tablets):
      • Adults and teenagers 16 years of age and older—At first, 500 milligrams (mg) two times a day. Your doctor may increase your dose as needed and tolerated. However, the dose is usually not more than 3000 mg per day.

      • Teenagers and children 4 to 15 years of age—Dose is based on body weight and must be determined by your doctor. The usual starting dose is 10 milligram (mg) per kilogram (kg) of body weight two times a day. Your doctor may adjust your dose as needed and tolerated. However, the dose is usually not more than 60 mg per kg of body weight per day.

      • Children and infants 6 months to 3 years of age—Dose is based on body weight and must be determined by your doctor. The usual starting dose is 10 mg per kg of body weight two times a day. Your doctor may adjust your dose as needed and tolerated. However, the dose is usually not more than 50 mg per kg of body weight per day.

      • Infants 1 to 5 months of age—Dose is based on body weight and must be determined by your doctor. The usual starting dose is 7 mg per kg of body weight two times a day. Your doctor may adjust your dose as needed and tolerated. However, the dose is usually not more than 42 mg per kg of body weight per day.

      • Infants younger than 1 month of age—Use and dose must be determined by your doctor.



  • For juvenile myoclonic seizures:
    • For oral dosage forms (solution or tablets):
      • Children 12 years of age and older—At first, 500 milligrams (mg) two times a day. Your doctor may increase your dose as needed and tolerated. However, the dose is usually not more than 3000 mg per day.

      • Children younger than 12 years of age—Use and dose must be determined by your doctor.



  • For primary generalized tonic-clonic seizures:
    • For oral dosage forms (solution or tablets):
      • Adults and teenagers 16 years of age and older—At first, 500 milligrams (mg) two times a day. Your doctor may increase your dose as needed and tolerated. However, the dose is usually not more than 3000 mg per day.

      • Teenagers and children 6 to 15 years of age—Dose is based on body weight and must be determined by your doctor. The usual starting dose is 10 milligram (mg) per kilogram (kg) of body weight two times a day. Your doctor may increase your dose as needed and tolerated. However, the dose is usually not more than 60 mg per kg of body weight per day.

      • Children younger than 6 years of age—Use and dose must be determined by your doctor.



Missed Dose


If you miss a dose of levetiracetam, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.


Storage


Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.


Keep out of the reach of children.


Do not keep outdated medicine or medicine no longer needed.


Ask your healthcare professional how you should dispose of any medicine you do not use.


Precautions While Using levetiracetam


It is very important that your doctor check your or your child's progress at regular visits, especially for the first few months you or your child are taking levetiracetam. This is necessary to allow dose adjustments and to reduce any unwanted effects.


Make sure your doctor knows if you are pregnant or planning to become pregnant. Your doctor may want you to join the UCB AED Pregnancy Registry or North American Antiepileptic Drug Pregnancy Registry. These registries are used by pregnant patients who are using levetiracetam.


Levetiracetam may cause changes in mood or behavior, clumsiness or unsteadiness, or unusual tiredness or weakness. Tell your doctor right away if you or your child start to feel depressed, anxious, angry, irritable, restless, or have thoughts about hurting yourself. Report any unusual thoughts or behavior that trouble you, especially if they are new or getting worse quickly.


levetiracetam may cause some people to become dizzy, drowsy, or less alert than they are normally. Make sure you know how you react to levetiracetam before you drive, use machines, or do anything else that could be dangerous if you are dizzy or not alert.


Serious skin reactions can occur with levetiracetam. Stop using levetiracetam and check with your doctor right away if you or your child have blistering, peeling, or loosening of the skin; red skin lesions; severe acne or skin rash; sores or ulcers on the skin; or fever or chills while you are using levetiracetam.


Do not stop taking levetiracetam without first checking with your doctor. Stopping the medicine suddenly may cause your seizures to return or to occur more often. Your doctor may want you to gradually reduce the amount you are taking before stopping it completely.


Make sure any doctor or dentist who treats you knows that you are using levetiracetam. levetiracetam may affect the results of certain medical tests.


levetiracetam Side Effects


Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.


Check with your doctor immediately if any of the following side effects occur:


More common
  • Aggressive or angry

  • anxiety

  • change in personality

  • chills

  • cough or hoarseness

  • crying

  • depersonalization

  • diarrhea

  • dry mouth

  • euphoria

  • fever

  • general feeling of discomfort or illness

  • headache

  • hyperventilation

  • irregular heartbeats

  • irritability

  • joint pain

  • loss of appetite

  • lower back or side pain

  • mental depression

  • muscle aches and pains

  • nausea

  • nervousness

  • painful or difficult urination

  • paranoia

  • quick to react or overreact emotionally

  • rapidly changing moods

  • restlessness

  • shaking

  • shivering

  • shortness of breath

  • sleepiness or unusual drowsiness

  • sore throat

  • stuffy or runny nose

  • sweating

  • trouble with sleeping

  • unusual tiredness or weakness

  • vomiting

Less common
  • Bloody nose

  • burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings

  • clumsiness or unsteadiness

  • discouragement

  • dizziness or lightheadedness

  • double vision

  • earache

  • fear or nervousness

  • feeling of constant movement of self or surroundings

  • feeling sad or empty

  • increase in body movements

  • loss of bladder control

  • loss of memory

  • mood or mental changes

  • outburst of anger

  • pain or tenderness around the eyes and cheekbones

  • problems with memory

  • redness or swelling in the ear

  • seizures

  • sensation of spinning

  • shakiness and unsteady walk

  • shakiness in the legs, arms, hands, or feet

  • tightness of the chest or wheezing

  • tiredness

  • trembling or shaking of the hands or feet

  • trouble concentrating

  • unsteadiness, trembling, or other problems with muscle control or coordination

Incidence not known
  • Attempts at killing oneself

  • being forgetful

  • bleeding gums

  • blistering, peeling, or loosening of the skin

  • bloating

  • blood in the urine or stools

  • bloody, black, or tarry stools

  • blurred vision

  • changes in vision

  • chest pain

  • constipation

  • dark urine

  • difficulty with moving

  • fast heartbeat

  • general feeling of tiredness or weakness

  • high fever

  • increase in body movements

  • indigestion

  • itching

  • light-colored stools

  • muscle pains or stiffness

  • painful or difficult urination

  • pains in the stomach, side, or abdomen, possibly radiating to the back

  • pale skin

  • pinpoint red spots on the skin

  • red skin lesions, often with a purple center

  • red, irritated eyes

  • sores, ulcers, or white spots on the lips or in the mouth

  • stomach pain, continuing

  • swollen glands

  • swollen joints

  • thoughts or attempts at killing oneself

  • trouble with balance

  • twitching, twisting, or uncontrolled repetitive movements of the tongue, lips, face, arms, or legs

  • uncontrolled jerking or twisting movements of the hands, arms, or legs

  • uncontrolled movements of the lips, tongue, or cheeks

  • unexplained bleeding or bruising

  • unusual bleeding or bruising

  • upper right abdominal or stomach pain

  • weight loss

  • yellow eyes or skin

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:


More common
  • Loss of strength or energy

  • muscle pain or weakness

  • pain

  • tender, swollen glands in the neck

  • trouble with swallowing

  • unusual weak feeling

  • voice changes

Less common
  • Body aches or pain

  • burning, dry, or itching eyes

  • change in the color of the skin

  • congestion

  • cough increased

  • rash

  • sneezing

Incidence not known
  • Hair loss or thinning of the hair

  • skin rash, encrusted, scaly, and oozing

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.


Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

See also: levetiracetam side effects (in more detail)



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More levetiracetam resources


  • Levetiracetam Side Effects (in more detail)
  • Levetiracetam Use in Pregnancy & Breastfeeding
  • Drug Images
  • Levetiracetam Drug Interactions
  • Levetiracetam Support Group
  • 101 Reviews for Levetiracetam - Add your own review/rating


  • Keppra Prescribing Information (FDA)

  • Keppra Consumer Overview

  • Keppra XR Extended-Release Tablets MedFacts Consumer Leaflet (Wolters Kluwer)

  • Levetiracetam Prescribing Information (FDA)

  • Levetiracetam Monograph (AHFS DI)

  • Levetiracetam MedFacts Consumer Leaflet (Wolters Kluwer)

  • Levetiracetam Professional Patient Advice (Wolters Kluwer)



Compare levetiracetam with other medications


  • Bipolar Disorder
  • Epilepsy
  • Hyperekplexia
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  • New Daily Persistent Headache
  • Seizures

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