Description and Brand Names

Drug information provided by: IBM Micromedex

US Brand Name

  1. Endocet
  2. Magnacet
  3. Narvox
  4. Percocet
  5. Perloxx
  6. Primalev
  7. Roxicet
  8. Roxilox
  9. Tylox
  10. Xartemix XR
  11. Xolox

Descriptions


Oxycodone and acetaminophen combination is used to relieve pain severe enough to require opioid treatment and when other pain medicines did not work well enough or cannot be tolerated.

Acetaminophen is used to relieve pain and reduce fever in patients. It does not become habit-forming when taken for a long time. But acetaminophen may cause other unwanted effects when taken in large doses, including liver damage.

Oxycodone belongs to the group of medicines called narcotic analgesics (pain medicines). It acts on the central nervous system (CNS) to relieve pain.

When oxycodone is used for a long time, it may become habit-forming, causing mental or physical dependence. However, people who have continuing pain should not let the fear of dependence keep them from using narcotics to relieve their pain. Mental dependence (addiction) is not likely to occur when narcotics are used for this purpose. Physical dependence may lead to withdrawal side effects if treatment is stopped suddenly. However, severe withdrawal side effects can usually be prevented by gradually reducing the dose over a period of time before treatment is stopped completely.

This medicine is available only with your doctor's prescription. Percocet® and Xartemis™ are available only under a restricted distribution program called the Opioid Analgesic REMS (Risk Evaluation and Mitigation Strategy) program.

This product is available in the following dosage forms:

  • Tablet
  • Solution

Before Using

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 this medicine, the following should be considered:

Allergies

Tell your doctor if you have ever had any unusual or allergic reaction to this medicine 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 oxycodone and acetaminophen combination in the pediatric population. Use of Xartemis™ is not recommended in children. 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 oxycodone and acetaminophen combination extended-release tablet, solution, or tablet in the elderly. However, elderly patients are more likely to have age-related kidney, lung, or liver problems, which may require caution and an adjustment in the dose for patients receiving this medicine.

Appropriate studies have not been performed on the relationship of age to the effects of oxycodone and acetaminophen combination capsules in the pediatric population. Safety and efficacy have not been established.

Breastfeeding

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.

Drug Interactions

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 this medicine, 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 this medicine with any of the following medicines is not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take.

  • Nalmefene
  • Naltrexone
  • Safinamide

Using this medicine 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.

  • Abiraterone
  • Acepromazine
  • Alfentanil
  • Almotriptan
  • Alprazolam
  • Alvimopan
  • Amifampridine
  • Amineptine
  • Amiodarone
  • Amisulpride
  • Amitriptyline
  • Amitriptylinoxide
  • Amobarbital
  • Amoxapine
  • Amphetamine
  • Amprenavir
  • Anileridine
  • Aprepitant
  • Aripiprazole
  • Armodafinil
  • Asenapine
  • Atazanavir
  • Baclofen
  • Benperidol
  • Benzhydrocodone
  • Benzphetamine
  • Boceprevir
  • Bosentan
  • Bromazepam
  • Bromopride
  • Brompheniramine
  • Buprenorphine
  • Buspirone
  • Butabarbital
  • Butorphanol
  • Carbamazepine
  • Carbinoxamine
  • Carisoprodol
  • Carphenazine
  • Ceritinib
  • Chloral Hydrate
  • Chlordiazepoxide
  • Chlorpheniramine
  • Chlorpromazine
  • Chlorzoxazone
  • Ciprofloxacin
  • Citalopram
  • Clarithromycin
  • Clobazam
  • Clomipramine
  • Clonazepam
  • Clopidogrel
  • Clorazepate
  • Clozapine
  • Cobicistat
  • Cocaine
  • Codeine
  • Conivaptan
  • Crizotinib
  • Cyclobenzaprine
  • Cyclosporine
  • Darunavir
  • Delavirdine
  • Desipramine
  • Desmopressin
  • Desvenlafaxine
  • Dexamethasone
  • Dexmedetomidine
  • Dextroamphetamine
  • Dextromethorphan
  • Dezocine
  • Diazepam
  • Dibenzepin
  • Dichloralphenazone
  • Difenoxin
  • Dihydrocodeine
  • Diltiazem
  • Diphenhydramine
  • Diphenoxylate
  • Dolasetron
  • Donepezil
  • Doxepin
  • Doxylamine
  • Dronedarone
  • Droperidol
  • Duloxetine
  • Efavirenz
  • Eletriptan
  • Enflurane
  • Enzalutamide
  • Erythromycin
  • Escitalopram
  • Esketamine
  • Eslicarbazepine Acetate
  • Estazolam
  • Eszopiclone
  • Ethchlorvynol
  • Ethopropazine
  • Ethylmorphine
  • Etravirine
  • Fentanyl
  • Flibanserin
  • Fluconazole
  • Fluoxetine
  • Fluphenazine
  • Flurazepam
  • Fluspirilene
  • Fluvoxamine
  • Fosamprenavir
  • Fosaprepitant
  • Fosnetupitant
  • Fosphenytoin
  • Fospropofol
  • Frovatriptan
  • Furazolidone
  • Granisetron
  • Halazepam
  • Haloperidol
  • Halothane
  • Hexobarbital
  • Hydrocodone
  • Hydromorphone
  • Hydroxytryptophan
  • Hydroxyzine
  • Idelalisib
  • Imatinib
  • Imipramine
  • Indinavir
  • Iproniazid
  • Isocarboxazid
  • Isoflurane
  • Isoniazid
  • Itraconazole
  • Ivacaftor
  • Ketamine
  • Ketazolam
  • Ketobemidone
  • Ketoconazole
  • Lanreotide
  • Levomilnacipran
  • Levorphanol
  • Linezolid
  • Lisdexamfetamine
  • Lithium
  • Lofepramine
  • Lofexidine
  • Lomitapide
  • Lopinavir
  • Lorazepam
  • Lorcaserin
  • Lorlatinib
  • Loxapine
  • Lumacaftor
  • Meclizine
  • Melitracen
  • Melperone
  • Meperidine
  • Mephobarbital
  • Meprobamate
  • Meptazinol
  • Mesoridazine
  • Metaxalone
  • Methadone
  • Methamphetamine
  • Methdilazine
  • Methocarbamol
  • Methohexital
  • Methotrimeprazine
  • Methylene Blue
  • Methylnaltrexone
  • Metoclopramide
  • Mibefradil
  • Midazolam
  • Mifepristone
  • Milnacipran
  • Mirtazapine
  • Mitotane
  • Moclobemide
  • Modafinil
  • Molindone
  • Moricizine
  • Morphine
  • Morphine Sulfate Liposome
  • Nafcillin
  • Nalbuphine
  • Nalorphine
  • Naloxone
  • Naratriptan
  • Nefazodone
  • Nelfinavir
  • Netupitant
  • Nevirapine
  • Nialamide
  • Nicomorphine
  • Nilotinib
  • Nitrazepam
  • Nitrous Oxide
  • Nortriptyline
  • Olanzapine
  • Ondansetron
  • Opipramol
  • Opium
  • Opium Alkaloids
  • Orphenadrine
  • Oxazepam
  • Oxcarbazepine
  • Oxymorphone
  • Palbociclib
  • Palonosetron
  • Papaveretum
  • Paregoric
  • Paroxetine
  • Pentazocine
  • Pentobarbital
  • Perampanel
  • Perazine
  • Periciazine
  • Perphenazine
  • Phenelzine
  • Phenobarbital
  • Phenytoin
  • Pimozide
  • Piperacetazine
  • Pipotiazine
  • Piritramide
  • Pixantrone
  • Pneumococcal 13-Valent Vaccine, Diphtheria Conjugate
  • Posaconazole
  • Prazepam
  • Prednisone
  • Primidone
  • Procarbazine
  • Prochlorperazine
  • Promazine
  • Promethazine
  • Propofol
  • Protriptyline
  • Quazepam
  • Quetiapine
  • Ramelteon
  • Ranitidine
  • Ranolazine
  • Rasagiline
  • Remifentanil
  • Remoxipride
  • Ribociclib
  • Rifabutin
  • Rifampin
  • Rifapentine
  • Ritonavir
  • Rizatriptan
  • Samidorphan
  • Saquinavir
  • Scopolamine
  • Secobarbital
  • Selegiline
  • Sertindole
  • Sertraline
  • Sibutramine
  • Sodium Oxybate
  • Sufentanil
  • Sulpiride
  • Sumatriptan
  • Suvorexant
  • Tapentadol
  • Telaprevir
  • Telithromycin
  • Temazepam
  • Thiethylperazine
  • Thiopental
  • Thiopropazate
  • Thioridazine
  • Tianeptine
  • Tilidine
  • Tizanidine
  • Tolonium Chloride
  • Topiramate
  • Tramadol
  • Tranylcypromine
  • Trazodone
  • Triazolam
  • Trifluoperazine
  • Trifluperidol
  • Triflupromazine
  • Trimeprazine
  • Trimipramine
  • Tryptophan
  • Venlafaxine
  • Verapamil
  • Vilazodone
  • Voriconazole
  • Vortioxetine
  • Zaleplon
  • Ziprasidone
  • Zolmitriptan
  • Zolpidem
  • Zopiclone
  • Zotepine

Using this medicine 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.

  • Acenocoumarol
  • Carbamazepine
  • Fosphenytoin
  • Lixisenatide
  • Phenytoin
  • St John's Wort
  • Warfarin
  • Zidovudine

Other Interactions

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. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.

Using this medicine with any of the following is usually not recommended, but may be unavoidable in some cases. If used together, your doctor may change the dose or how often you use this medicine, or give you special instructions about the use of food, alcohol, or tobacco.

  • Ethanol
  • Grapefruit Juice
  • Tobacco

Using this medicine with any of the following may cause an increased risk of certain side effects but may be unavoidable in some cases. If used together, your doctor may change the dose or how often you use this medicine, or give you special instructions about the use of food, alcohol, or tobacco.

  • Cabbage

Other Medical Problems

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

  • Addison disease (adrenal gland problem) or
  • Alcohol abuse, history of or
  • Brain tumor, history of or
  • Breathing or lung problems (eg, low oxygen levels) or
  • Chronic obstructive pulmonary disease (COPD) or
  • Cor pulmonale (serious heart problem) or
  • Drug dependence, especially with narcotic abuse or dependence, or history of or
  • Head injury, history of or
  • Hypothyroidism (an underactive thyroid) or
  • Hypovolemia (low blood volume) or
  • Kyphoscoliosis (curvature of the spine with breathing problems) or
  • Mental health problems or
  • Problems with passing urine or
  • Prostatic hypertrophy (enlarged prostate, BPH) or
  • Trouble swallowing or
  • Weakened physical condition—Use with caution. May increase risk for more serious side effects.
  • Asthma, acute or severe or
  • Lung disease or breathing problems, severe or
  • Stomach or bowel blockage (eg, paralytic ileus), known or suspected—Should not be used in patients with these conditions.
  • Hypotension (low blood pressure) or
  • Pancreatitis (swelling of the pancreas) or
  • Seizures, history of—Use with caution. May make these conditions worse.
  • Kidney disease or
  • Liver disease—Use with caution. The effects may be increased because of slower removal of the medicine from the body.

Proper Use

Take this medicine only as directed by your doctor. 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. This is especially important for elderly patients, who may be more sensitive to the effects of pain medicines. If too much of this medicine is taken for a long time, it may become habit-forming and cause mental or physical dependence. Also, large amounts of acetaminophen may cause liver damage if taken for a long time.

It is very important that you understand the rules of the Opioid Analgesic REMS program to prevent addiction, abuse, and misuse of oxycodone and acetaminophen combination. This medicine should also come with a Medication Guide. Read and follow these instructions carefully. Read it again each time you refill your prescription in case there is new information. Ask your doctor if you have any questions.

You may take this medicine with or without food.

Measure the oral liquid using the patient cup that comes with the package.

Swallow the extended-release tablet whole with water. Do not crush, break, chew, dissolve, snort, or inject it. Do not pre-soak, lick, or wet the tablet before placing it in your mouth. Do not give this medicine by feeding tubes.

Check with your doctor first before changing dosage forms (eg, capsules, extended-release tablets, tablets). These forms are very different from each other.

This combination medicine contains acetaminophen (Tylenol®). Carefully check the labels of all other medicines you are using, because they may also contain acetaminophen. It is not safe to use more than 4 grams (4,000 milligrams) of acetaminophen in one day (24 hours).

Dosing

The dose of this medicine 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 this medicine. 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 moderate to moderately severe pain:
    • For oral dosage form (capsules):
      • Adults—1 capsule every 6 hours as needed.
      • Children—Use and dose must be determined by your doctor.
    • For oral dosage form (extended-release tablets):
      • Adults—2 tablets every 12 hours as needed.
      • Children—Use is not recommended.
    • For oral dosage form (solution):
      • Adults—5 milliliters (mL) or 1 teaspoon every 6 hours as needed. Your doctor may adjust the dose as needed. However, the dose is usually not more than 60 mL (12 teaspoons) per day.
      • Children—Use and dose must be determined by your doctor.
    • For oral dosage form (tablets):
      • Adults—1 or 2 tablets every 6 hours as needed.
      • Children—Use and dose must be determined by your doctor.

Missed Dose

If you miss a dose of this medicine, 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.

If you miss a dose of Percocet®, skip the missed dose and go back to your regular dosing schedule.

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.

Oxycodone and acetaminophen combination can cause serious unwanted effects or fatal overdose if taken by children, pets, or adults who are not used to strong narcotic pain medicines. Make sure you store the medicine in a safe and secure place to prevent others from getting it.

Store the medicine in a safe and secure place. Do not throw unused medicine in the trash. Flush unused Percocet® and Xartemis™ down the toilet. Ask your pharmacist about the best way to dispose of medicine you do not use.

Precautions

It is very important that your doctor check your progress while you are taking this medicine, especially within the first 24 to 72 hours of treatment. This will allow your doctor to see if the medicine is working properly and to decide if you should continue to take it. Blood and urine tests may be needed to check for unwanted effects.

It is against the law and dangerous for anyone else to use your medicine. Keep your unused medicine in a safe and secure place. People who are addicted to drugs might want to steal it.

This medicine will add to the effects of alcohol and other CNS depressants (medicines that can make you drowsy or less alert). Some examples of CNS depressants are antihistamines or medicine for allergies or colds, sedatives, tranquilizers, or sleeping medicine, other prescription pain medicine or narcotics, medicine for seizures or barbiturates, muscle relaxants, or anesthetics, including some dental anesthetics. Also, there may be a greater risk of liver damage if you drink three or more alcoholic beverages while you are taking acetaminophen. Do not drink alcoholic beverages, and check with your doctor before taking any of these medicines while you are using this medicine.

This medicine may be habit-forming. If you feel that the medicine is not working as well, do not use more than your prescribed dose. Call your doctor for instructions.

Do not use this medicine if you are using or have used an MAO inhibitor (eg, isocarboxazid [Marplan®], linezolid [Zyvox®], phenelzine [Nardil®], selegiline [Eldepryl®], tranylcypromine [Parnate®]) within the past 14 days. Using these medicine together may cause serious unwanted effects.

Dizziness, lightheadedness, or fainting may occur when you get up suddenly from a lying or sitting position. Getting up slowly may help lessen this problem. Also, lying down for a while may relieve the dizziness or lightheadedness.

This medicine may make you dizzy, drowsy, or lightheaded. Do not drive or do anything else that could be dangerous until you know how this medicine affects you.

Check with your doctor right away if you have pain or tenderness in the upper stomach, pale stools, dark urine, loss of appetite, nausea, unusual tiredness or weakness, or yellow eyes or skin. These could be symptoms of a serious liver problem.

Serious skin reactions can occur with this medicine. Check with your doctor right away if you 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 this medicine.

This medicine may cause serious allergic reactions, including anaphylaxis, which can be life-threatening and requires immediate medical attention. Call your doctor right away if you have a rash, itching, hoarseness, trouble breathing, trouble swallowing, or any swelling of your hands, face, or mouth while you are using this medicine.

Using narcotics for a long time can cause severe constipation. To prevent this, your doctor may direct you to take laxatives, drink a lot of fluids, or increase the amount of fiber in your diet. Be sure to follow the directions carefully, because continuing constipation can lead to more serious problems.

If you have been using this medicine regularly for several weeks or longer, do not change your dose or suddenly stop using it without checking with your doctor. Your doctor may want you to gradually reduce the amount you are using before stopping it completely. This may help prevent worsening of your condition and reduce the possibility of withdrawal symptoms, such as abdominal or stomach cramps, anxiety, fever, irritability, nausea, restlessness, runny nose, sweating, tremors, or trouble with sleeping.

Using this medicine while you are pregnant may cause serious unwanted effects, including neonatal withdrawal syndrome in your newborn baby. Tell your doctor right away if you think you are pregnant or if you plan to become pregnant while using this medicine.

For nursing mothers:

  • Talk to your doctor if you have any questions about taking oxycodone or about how this medicine may affect your baby.
  • Call your doctor if you become extremely tired and have difficulty caring for your baby.
  • Your baby should generally nurse every 2 to 3 hours and should not sleep for more than 4 hours at a time.
  • Check with your doctor or hospital emergency room immediately if your baby shows signs of increased sleepiness (more than usual), difficulty breastfeeding, difficulty breathing, or limpness. These may be symptoms of an overdose and need immediate medical attention.

Before you have any medical tests, tell the medical doctor in charge that you are taking this medicine. The results of some tests may be affected by this medicine.

Check with your doctor right away if you have anxiety, restlessness, a fast heartbeat, fever, sweating, muscle spasms, twitching, nausea, vomiting, diarrhea, or see or hear things that are not there. These may be symptoms of a serious condition called serotonin syndrome. Your risk may be higher if you also take certain other medicines that affect serotonin levels in your body.

Using too much of this medicine may reduce infertility (unable to have children). Talk with your doctor before using this medicine if you plan to have children.

Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.

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

  1. Black, tarry stools
  2. chills
  3. dark urine
  4. dizziness
  5. fever
  6. headache
  7. itching, skin rash
  8. light-colored stools
  9. loss of appetite
  10. nausea
  11. stomach pain
  12. unpleasant breath odor
  13. unusual tiredness or weakness
  14. vomiting of blood
  15. yellow eyes or skin

Rare

  1. Cough
  2. fever with or without chills
  3. general feeling of tiredness or weakness
  4. hoarseness
  5. lower back or side pain
  6. painful or difficult urination
  7. sore throat
  8. sores, ulcers, or white spots on the lips or in the mouth
  9. unusual bleeding or bruising

Incidence not known

  1. Back, leg, or stomach pains
  2. bleeding gums
  3. bloating
  4. blood in the urine or stools
  5. blue lips and fingernails
  6. blurred vision
  7. burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
  8. chest pain or discomfort
  9. cloudy urine
  10. clumsiness
  11. confusion
  12. constipation
  13. coughing that sometimes produces a pink frothy sputum
  14. decreased awareness or responsiveness
  15. decreased frequency or amount of urine
  16. difficult or labored breathing
  17. difficult, fast, noisy breathing
  18. difficulty in passing urine (dribbling)
  19. difficulty with swallowing
  20. dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
  21. drowsiness
  22. dry mouth
  23. extremely shallow or slow breathing
  24. fainting
  25. fast or deep breathing
  26. fast, slow, irregular, pounding, or racing heartbeat
  27. feeling of warmth
  28. general body swelling
  29. hives or welts
  30. increased sweating
  31. increased thirst
  32. indigestion
  33. large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or genitals
  34. lightheadedness
  35. muscle aches, tremors, or weakness
  36. nervousness
  37. nosebleeds
  38. pains in the stomach, side, or abdomen, possibly radiating to the back
  39. pale skin
  40. pinpoint red spots on the skin
  41. pounding in the ears
  42. puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
  43. rapid, deep or shallow breathing
  44. redness of the face, neck, arms, and occasionally, upper chest
  45. restlessness
  46. seizures
  47. severe constipation
  48. severe sleepiness
  49. severe vomiting
  50. skin blisters
  51. sleepiness
  52. stomach cramps
  53. sunken eyes
  54. sweating
  55. swelling of the face, fingers, lower legs, or ankles
  56. thirst
  57. tightness in the chest
  58. tiredness
  59. vomiting
  60. weakness or heaviness of the legs
  61. weight gain

Get emergency help immediately if any of the following symptoms of overdose occur:

Symptoms of overdose

  1. Bluish lips or skin
  2. change in consciousness
  3. cold, clammy skin
  4. extreme sleepiness
  5. general feeling of discomfort or illness
  6. loss of consciousness
  7. low blood pressure or pulse
  8. slow breathing
  9. unconsciousness

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

  1. Relaxed and calm feeling

Incidence not known

  1. Agitation
  2. bad, unusual or unpleasant (after) taste
  3. belching
  4. change in taste
  5. cold sweats
  6. constricted, pinpoint, or small pupils (black part of the eye)
  7. continuing ringing or buzzing or other unexplained noise in the ears
  8. cool, pale skin
  9. depression
  10. diarrhea
  11. difficulty with moving
  12. disturbed color perception
  13. double vision
  14. excess air or gas in the stomach or bowels
  15. false or unusual sense of well-being
  16. flushed, dry skin
  17. fruit-like breath odor
  18. full feeling
  19. general feeling of discomfort or illness
  20. halos around lights
  21. hearing loss
  22. heartburn
  23. increased hunger
  24. increased urination
  25. indigestion
  26. joint pain
  27. lack or loss of strength
  28. muscle cramps, spasms, pain, or stiffness
  29. night blindness
  30. nightmares
  31. overbright appearance of lights
  32. seeing, hearing, or feeling things that are not there
  33. seizures
  34. shakiness
  35. slurred speech
  36. stomach discomfort, upset, or pain
  37. swollen joints
  38. trouble sleeping
  39. tunnel vision
  40. unexplained weight loss
  41. unusual drowsiness, dullness, tiredness, weakness, or feeling of sluggishness

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.