Rifampin, isoniazid, and pyrazinamide (Oral route)

Pronunciation:

rif-AM-pin, eye-soe-NYE-a-zid, pir-a-ZIN-a-mide

Brand Names:

Rifater

Warnings:

Oral route(Tablet)

Severe and sometimes fatal hepatitis associated with isoniazid, a component of rifampin, isoniazid and pyrazinamide, therapy may occur and may develop even after many months of treatment. The risk of developing hepatitis is age related. Approximate case rates by age are: 0 per 1000 for persons under 20 years of age, 3 per 1000 for persons in the 20 to 34 year age group, 12 per 1000 for persons in the 35 to 49 year age group, 23 per 1000 for persons in the 50 to 64 year age group, and 8 per 1000 for persons over 65 years of age. The risk of hepatitis is increased with daily consumption of alcohol. Precise data to provide a fatality rate for isoniazid-related hepatitis is not available; however, in a US Public Health Service Surveillance Study of 13,838 persons taking isoniazid, there were 8 deaths among 174 cases of hepatitis.Therefore, patients given rifampin, isoniazid and pyrazinamide, which contains isoniazid, should be carefully monitored and interviewed at monthly intervals. Serum transaminase concentration becomes elevated in about 10% to 20% of patients, usually during the first few months of therapy, but it can occur at any time. Usually enzyme levels return to normal despite continuance of drug, but in some cases progressive liver dysfunction occurs. Patients should be instructed to report immediately any of the prodromal symptoms of hepatitis, such as fatigue, weakness, malaise, anorexia, nausea, or vomiting. If these symptoms appear or if signs suggestive of hepatic damage are detected, rifampin, isoniazid and pyrazinamide should be discontinued promptly since continued use of the drug in these cases has been reported to cause a more severe form of liver damage.Patients with tuberculosis should be given appropriate treatment with alternative drugs. If isoniazid, a component of rifampin, isoniazid and pyrazinamide, must be reinstituted, it should be reinstituted only after symptoms and laboratory abnormalities have cleared. Rifampin, isoniazid and pyrazinamide should not be restarted, instead, isoniazid ,should be restarted in very small and gradually increasing doses and should be withdrawn immediately if there is any indication of recurrent liver involvement. Treatment should be deferred in persons with acute hepatic diseases .

Classifications:

Chemical—

Rifamycin

Uses of This Medicine:

Rifampin, isoniazid, and pyrazinamide combination is used to treat tuberculosis (TB) infection. It may be taken alone or with one or more other medicines for TB. Rifampin belongs to the class of medicines called antibiotics and works to kill or prevent the growth of bacteria. However, it will not work for colds, flu, or other virus infections.

This medicine is available only with your doctor's prescription.

Before Using This Medicine:

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.

Children—

Appropriate studies have not been performed on the relationship of age to the effects of rifampin, isoniazid, and pyrazinamide combination in children younger than 15 years of age. Safety and efficacy have not been established.

Older adults—

Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of rifampin, isoniazid, and pyrazinamide combination in the elderly.

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.

Other 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 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.

Artemether
Atazanavir
Bictegravir
Boceprevir
Cabotegravir
Cobicistat
Daclatasvir
Darunavir
Dasabuvir
Delamanid
Doravirine
Elbasvir
Elvitegravir
Fosamprenavir
Fostemsavir
Glecaprevir
Grazoprevir
Isavuconazonium Sulfate
Lenacapavir
Lopinavir
Lorlatinib
Lurasidone
Maraviroc
Mavacamten
Nelfinavir
Nirmatrelvir
Ombitasvir
Pacritinib
Paritaprevir
Pibrentasvir
Praziquantel
Ranolazine
Rilpivirine
Ritonavir
Saquinavir
Sofosbuvir
Telaprevir
Tenofovir Alafenamide
Tipranavir
Velpatasvir
Voriconazole
Voxilaprevir

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.

Abemaciclib
Abiraterone Acetate
Abrocitinib
Acalabrutinib
Acetaminophen
Adagrasib
Afatinib
Alfentanil
Alpelisib
Amifampridine
Amiodarone
Amlodipine
Amprenavir
Apixaban
Apremilast
Aprepitant
Aripiprazole
Atogepant
Atovaquone
Avacopan
Avapritinib
Avatrombopag
Axitinib
Bedaquiline
Belumosudil
Bendamustine
Benzhydrocodone
Berotralstat
Betrixaban
Bortezomib
Bosutinib
Brexpiprazole
Brigatinib
Brivaracetam
Buprenorphine
Bupropion
Cabozantinib
Cannabidiol
Capivasertib
Capmatinib
Carbamazepine
Cariprazine
Celecoxib
Ceritinib
Cholera Vaccine, Live
Clarithromycin
Clopidogrel
Clozapine
Cobimetinib
Codeine
Copanlisib
Crizotinib
Cyclosporine
Dabigatran Etexilate
Daprodustat
Daridorexant
Darolutamide
Dasatinib
Deferasirox
Deflazacort
Delavirdine
Desogestrel
Dexamethasone
Dienogest
Digoxin
Dihydrocodeine
Dolutegravir
Domperidone
Donepezil
Doxorubicin
Doxorubicin Hydrochloride Liposome
Dronedarone
Drospirenone
Duvelisib
Edoxaban
Efavirenz
Elacestrant
Elagolix
Elexacaftor
Eliglustat
Eluxadoline
Encorafenib
Entrectinib
Enzalutamide
Eravacycline
Erdafitinib
Erlotinib
Estetrol
Estradiol
Ethinyl Estradiol
Ethionamide
Ethynodiol
Etonogestrel
Etrasimod
Etravirine
Everolimus
Exemestane
Fedratinib
Fenfluramine
Fentanyl
Fexinidazole
Finerenone
Fosaprepitant
Fosnetupitant
Fosphenytoin
Fostamatinib
Fruquintinib
Futibatinib
Gefitinib
Gepirone
Gestodene
Gilteritinib
Glasdegib
Glimepiride
Halothane
Hemin
Hydrocodone
Hydroxychloroquine
Ibrexafungerp
Ibrutinib
Idelalisib
Ifosfamide
Imatinib
Indinavir
Infigratinib
Iptacopan
Irinotecan
Irinotecan Liposome
Isoniazid
Istradefylline
Itraconazole
Ivabradine
Ivacaftor
Ivosidenib
Ixabepilone
Ixazomib
Ketoconazole
Lamotrigine
Lapatinib
Larotrectinib
Ledipasvir
Lefamulin
Lemborexant
Leniolisib
Letermovir
Levodopa
Levoketoconazole
Levonorgestrel
Linagliptin
Lorcainide
Lumateperone
Lurbinectedin
Macimorelin
Macitentan
Manidipine
Maribavir
Medroxyprogesterone
Meperidine
Mestranol
Methadone
Methotrexate
Metoprolol
Midostaurin
Mifepristone
Mirtazapine
Mitapivat
Mobocertinib
Momelotinib
Mycophenolate Mofetil
Mycophenolic Acid
Naloxegol
Neratinib
Netupitant
Nevirapine
Nifedipine
Nilotinib
Nimodipine
Nintedanib
Nirogacestat
Nomegestrol
Norelgestromin
Norethindrone
Norgestimate
Norgestrel
Olanzapine
Olaparib
Oliceridine
Olutasidenib
Omaveloxolone
Omeprazole
Osimertinib
Oxcarbazepine
Oxycodone
Ozanimod
Palbociclib
Paliperidone
Palovarotene
Panobinostat
Pazopanib
Pemigatinib
Pentazocine
Perampanel
Pexidartinib
Phenobarbital
Phenytoin
Pimavanserin
Piperaquine
Pirtobrutinib
Pitavastatin
Pitolisant
Ponatinib
Ponesimod
Posaconazole
Pralsetinib
Pretomanid
Primidone
Pyrazinamide
Quetiapine
Quinine
Quizartinib
Regorafenib
Relugolix
Repotrectinib
Revefenacin
Ribociclib
Rifampin
Rimegepant
Ripretinib
Risperidone
Ritlecitinib
Rivaroxaban
Roflumilast
Rolapitant
Romidepsin
Ruxolitinib
Samidorphan
Segesterone
Selexipag
Selpercatinib
Selumetinib
Sildenafil
Simeprevir
Siponimod
Sirolimus
Sirolimus Protein-Bound
Sonidegib
Sorafenib
Sotagliflozin
Sotorasib
Sparsentan
Stiripentol
Sufentanil
Sunitinib
Tacrolimus
Tamoxifen
Tasimelteon
Tazemetostat
Tegafur
Telithromycin
Temsirolimus
Tezacaftor
Thiotepa
Ticagrelor
Tivozanib
Tofacitinib
Tolvaptan
Trabectedin
Tramadol
Tucatinib
Ubrogepant
Ulipristal
Upadacitinib
Valbenazine
Vandetanib
Vemurafenib
Venetoclax
Vilazodone
Vincristine
Vincristine Sulfate Liposome
Vinflunine
Voclosporin
Vonoprazan
Vorapaxar
Vortioxetine
Voxelotor
Zanubrutinib
Zavegepant
Zidovudine
Zolpidem
Zuranolone

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.

Acetyldigoxin
Aliskiren
Aminosalicylic Acid
Anisindione
Aripiprazole Lauroxil
Atorvastatin
Betamethasone
Bexarotene
Bosentan
Buspirone
Carbamazepine
Carvedilol
Caspofungin
Chloramphenicol
Chlorpropamide
Citalopram
Clofibrate
Cortisone
Diazepam
Dicumarol
Diltiazem
Disopyramide
Disulfiram
Doxycycline
Enalaprilat
Enalapril Maleate
Enflurane
Etoricoxib
Fluconazole
Fludrocortisone
Fosphenytoin
Gliclazide
Glyburide
Haloperidol
Isradipine
Levomethadyl
Levothyroxine
Linezolid
Losartan
Mefloquine
Meperidine
Metformin
Methylprednisolone
Morphine
Morphine Sulfate Liposome
Moxifloxacin
Nisoldipine
Ospemifene
Phenprocoumon
Phenytoin
Pioglitazone
Pirmenol
Prednisolone
Prednisone
Propafenone
Raltegravir
Repaglinide
Rofecoxib
Rosiglitazone
Sertraline
Simvastatin
Tadalafil
Theophylline
Tocainide
Triazolam
Trimetrexate
Valproic Acid
Warfarin
Zaleplon
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

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.

food
Tyramine Containing Food

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:

Adrenal gland problem or
Blood clotting problems or
Diabetes, history of or
Porphyria (an enzyme problem) or
Vitamin K deficiency—Use with caution. May make these conditions worse.

Alcohol abuse, or history of—Use with caution. There may be an increased chance of getting liver problems (eg, hepatitis) if you take this medicine and drink alcohol daily.

Gout, acute or
Liver disease, acute or severe or
Meningococcal disease (including infections of the lining of the brain and spinal cord [meningitis] and bloodstream [eg, bacteremia, septicemia)—Should not be used in patients with these conditions.

Liver disease, chronic or
Patients with poor nutrition status—Use with caution. May increase risk for vitamin K deficiency, which may lead to excessive bleeding.

Proper Use of This Medicine:

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. To do so may increase the chance of side effects.

This medicine should be taken on an empty stomach, 1 hour before or 2 hours after a meal, with a full of glass of water. It is important to take this medicine on a regular schedule.

If this medicine upsets your stomach, take it with food. Antacids may also help. However, do not take aluminum-containing antacids (eg, Maalox®, Mylanta®) within 1 hour of the time you take rifampin, isoniazid, and pyrazinamide combination. They may keep this medicine from working properly.

To help clear up your tuberculosis (TB) infection completely, it is very important that you keep taking this medicine for the full time of treatment, even if you begin to feel better after a few weeks. It is important that you do not miss any doses.

Your doctor may also want you to take pyridoxine (eg, Hexa-Betalin, vitamin B6) everyday to help prevent or lessen some of the side effects of isoniazid. If it is needed, it is very important to take pyridoxine everyday along with this medicine. Do not miss any doses.

If you are taking itraconazole, do not use rifampin, isoniazid, and pyrazinamide combination 2 weeks before and during itraconazole treatment.

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 oral dosage form (tablets):
- For the treatment of tuberculosis:
  - Adults and children 15 years of age and older weighing 55 kilograms (kg) (121 pounds) or more—6 tablets per day.
  - Adults and children 15 years of age and older weighing between 45 and 54 kg (99 and 119 pounds)—5 tablets per day.
  - Adults and children 15 years of age and older weighing 44 kg (97 pounds) or less—4 tablets per day.
  - Children younger than 15 years of age—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 rifampin, isoniazid, and pyrazinamide combination is taken on an irregular schedule, side effects may occur more often and may be more serious than usual. If you have any questions about this, check with your doctor.

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 This Medicine:

It is very important that your doctor check your or your child's progress at regular visits. Blood and urine tests may be needed to check for unwanted effects.

If your symptoms do not improve within 2 to 3 weeks, or if they become worse, check with your doctor.

Do not use this medicine if you are also receiving lurasidone (Latuda®) or certain medicines to treat HIV infection (eg, atazanavir, darunavir, fosamprenavir, ritonavir, ritonavir-boosted saquinavir, saquinavir, tipranavir, Aptivus®, Fortovase®, Invirase®, Lexiva®, Norvir®, Prezista®, or Reyataz®).

Do not use this medicine together with praziquantel. If you need to take praziquantel, you should stop using this medicine 4 weeks before starting praziquantel. You may restart this medicine one day after the last dose of praziquantel.

Liver problems may be more likely to occur if you drink alcoholic beverages regularly while you are using this medicine. Also, the regular use of alcohol may keep this medicine from working properly. Therefore, you should strictly limit the amount of alcoholic beverages you drink while you are using this medicine.

Check with your doctor right away if you have a fever, chills, cough, sore throat, swollen, painful, or tender lymph glands in the neck, armpit, or groin, or yellow skin or eyes while using this medicine. These could be symptoms of a serious condition called drug reaction with eosinophilia and systemic symptoms (DRESS).

Serious skin reactions (eg, Stevens-Johnson syndrome, toxic epidermal necrolysis, and acute generalized exanthematous pustulosis) 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 a skin rash, sores or ulcers on the skin, or fever or chills with this medicine.

Tell your doctor right away if you have chest pain, cough, coughing or spitting up blood, difficulty in breathing, sore throat, muscle aches, night sweats, sudden high fever, or unusual tiredness. These could be symptoms of a paradoxical drug reaction to this medicine. If your symptoms do not improve within a few days or if they become worse, check with your doctor.

Check with your doctor right away if blurred vision, difficulty in reading, or any other change in vision occurs during or after treatment. Your doctor may want you to have your eyes checked by an ophthalmologist (eye doctor).

Check with your doctor right away if you have joint pain, stiffness, or swelling, lower back, side, or stomach pain, or swelling of the feet or lower legs. These could be symptoms of an acute gout.

This medicine may cause blood clotting problems, which may lead to bleeding. Check with your doctor right away if you cough up blood, have bleeding gums, difficulty in breathing or swallowing, dizziness, headache, increased menstrual flow or vaginal bleeding, nosebleeds, prolonged bleeding from cuts, red or dark brown urine, or red or black, tarry stools after using this medicine.

This medicine will cause urine, stool, saliva, sputum, sweat, teeth, and tears to turn reddish-orange to reddish-brown. This is to be expected while you are using this medicine. This effect may cause soft contact lenses to become permanently discolored. Standard cleaning solutions may not take out all the discoloration. Therefore, it is best not to wear soft contact lenses while using this medicine. Hard contact lenses are not discolored by this medicine. This condition will return to normal once you stop using this medicine. If you have any questions about this, check with your doctor.

This medicine may cause lung or breathing problems (eg, interstitial lung disease, pneumonitis, pneumonia, respiratory failure, pulmonary fibrosis, acute respiratory distress syndrome), which can be life-threatening and require immediate medical attention. Check with your doctor right away if you have chest pain, chills, dry cough, fever, general feeling of discomfort or illness, thickening of bronchial secretions, or trouble breathing.

Check with your doctor right away if you feel very tired or very weak, or if you have clumsiness, unsteadiness, loss of appetite, nausea, numbness, tingling, burning, or pain in the hands and feet, or vomiting. These may be early warning symptoms of more serious liver or nerve problems that could develop later.

Rifampin, isoniazid, and pyrazinamide combination may cause blood problems. These problems may result in a greater chance of certain infections, slow healing, and bleeding of the gums. Therefore, you should be careful when using regular toothbrushes, dental floss, and toothpicks. Dental work should be delayed until your blood counts have returned to normal. Check with your medical doctor or dentist if you have any questions about proper oral hygiene (mouth care) during treatment.

This medicine may cause thrombotic microangiopathy (damage in the smallest blood vessels), including hemolytic uremic syndrome and thrombotic thrombocytopenic purpura. Tell your doctor right away if you have a change in mental status, dark or bloody urine, decreased urine output, difficulty speaking, fever, pale color of the skin, pinpoint red spots on the skin, seizures, severe chest pain, sudden weakness in the arms or legs, unusual bleeding or bruising, or yellow eyes or skin.

If you develop a skin rash, hives, or any allergic reaction to this medicine, check with your doctor right away.

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

Eating certain foods (eg, Cheshire cheese, Swiss cheese, skipjack, tuna, or Sardinella) or drinking red wine may cause reactions in some patients using isoniazid-containing medicines. Check with your doctor if flushing, fast or pounding heartbeat, headache, redness or itching of the skin, sweating, dizziness, or lightheadedness occurs while you are using this medicine.

Birth control pills may not work properly while you are using this medicine. To keep from getting pregnant, use another form of birth control along with your birth control pills. Other forms include condoms, diaphragms, or contraceptive foams or jellies.

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 of This Medicine:

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: Chest pain or tightness; clumsiness or unsteadiness; coughing or spitting up blood; dark urine; fast, irregular, pounding, or racing heartbeat or pulse; loss of appetite; nausea; numbness, tingling, burning, or pain in the hands and feet; pain in the large and small joints; sneezing; trouble breathing; unusual tiredness or weakness; vomiting; yellow eyes or skin

Less common: Chills; difficulty in breathing; dizziness; fever; headache; hearing loss; muscle and bone pain; ringing or buzzing or other unexplained noise in the ears; shivering; skin rash, itching, or redness

Rare: Agitation; bleeding gums; blistering, peeling, or loosening of the skin; blood in the urine or stools; blurred vision or loss of vision, with or without eye pain; bruising; confusion; darkening of the skin; difficulty in swallowing; fainting; feeling that others are watching you or controlling your behavior; feeling that others can hear your thoughts; feeling, seeing, or hearing things that are not there; fever with or without chills; general feeling of tiredness or weakness; heavier menstrual periods; hives; hoarseness; hostility; increased blood pressure; increased thirst; irritability; light-colored stools; lower back or side pain; mental depression; muscle tenderness, wasting, or weakness; persistent bleeding or oozing from puncture sites, mouth, or nose; pinpoint red spots on the skin; puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue; seizures; severe mood or mental changes; swelling of the face, ankles, fingers, hands, or lower legs; unusual behavior; unusual drowsiness, dullness, or feeling of sluggishness; weight gain

Incidence not known: Ankle, knee, or great toe pain; back pain; being forgetful; black, tarry stools; bleeding under the skin; blemishes on the skin; bloating; bloody, severe, or watery diarrhea; blue-yellow color blindness; bone pain; burning while urinating; cloudy urine; cold, clammy skin; constipation; cough; difficulty seeing at night; difficulty with speaking; double vision; dry mouth; fast, weak pulse; flushed, dry skin; fruit-like breath odor; general feeling of discomfort or illness; greatly decreased frequency of urination or amount of urine; hair loss; inability to move the arms, legs, or facial muscles; inability to speak; increased hunger; increased menstrual flow or vaginal bleeding; increased sensitivity of the eyes to sunlight; increased urination; indigestion; joint pain, stiffness, or swelling; large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or sex organs; lightheadedness; muscle aches, pains, and tremors; night sweats; nosebleeds; painful or difficult urination; pains in the stomach, side, or abdomen, possibly radiating to the back; pale skin; paralysis; pimple; prolonged bleeding from cuts; rapid, deep breathing; red or dark brown urine; red skin lesions, often with a purple center; red, irritated eyes; restlessness; runny nose; slow speech; sore throat; sores, ulcers, or white spots on the lips or in the mouth; stiff neck; stomach cramps or pain; sweating; swollen glands; trouble sleeping; unpleasant breath odor; unusual bleeding or bruising; unusual weight loss

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

Symptoms of overdose: Blurred vision; confusion; decreased awareness or responsiveness; dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position; fainting; fast, pounding, or irregular heartbeat or pulse; feeling of fullness in the upper abdomen or stomach; loss of consciousness; low blood pressure or slow pulse; pain in the upper abdomen or stomach; reddish-orange to reddish-brown color of the urine, stool, saliva, sputum, sweat, and tears; seeing, hearing, or feeling things that are not there; seizures; severe sleepiness; slurring of speech; swelling around the eyes and face; unusual drowsiness, dullness, tiredness, weakness, or feeling of sluggishness; 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:

Less common: Sore mouth or tongue

Incidence not known: Belching; bloated or full feeling; excess air or gas in the stomach or bowels; not able to concentrate; pain or discomfort in the chest, upper stomach, or throat; swelling of the breasts or breast soreness in both females and males; tooth discoloration

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.

Last Updated: 4/24/2024

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites.