Naltrexone and bupropion combination is used together with a reduced-calorie diet and proper exercise to help lose weight and keep it off. This medicine is used in people who are overweight or very overweight and who also have weight-related medical problems.
Naltrexone and bupropion combination is used together with a reduced-calorie diet and proper exercise to help lose weight and keep it off. This medicine is used in people who are overweight or very overweight and who also have weight-related medical problems.
This medicine is available only with your doctor's prescription.
This product is available in the following dosage forms:
Tablet, Extended Release
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 naltrexone and bupropion combination in the pediatric population. 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 naltrexone and bupropion combination in the elderly. However, elderly patients may be more sensitive to the effects of this medicine and are more likely to have age-related kidney problems, which may require caution and an adjustment in the dose for patients receiving this medicine.
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.
Alfentanil
Alphaprodine
Anileridine
Benzhydrocodone
Bromopride
Buprenorphine
Butorphanol
Codeine
Diacetylmorphine
Difenoxin
Dihydrocodeine
Diphenoxylate
Eliglustat
Ethylmorphine
Fentanyl
Furazolidone
Hydrocodone
Hydromorphone
Iproniazid
Isocarboxazid
Ketobemidone
Levorphanol
Linezolid
Meperidine
Methadone
Methylene Blue
Moclobemide
Morphine
Morphine Sulfate Liposome
Nalbuphine
Nialamide
Nicomorphine
Opium
Opium Alkaloids
Oxycodone
Oxymorphone
Ozanimod
Papaveretum
Paregoric
Phenelzine
Piritramide
Procarbazine
Propoxyphene
Rasagiline
Remifentanil
Selegiline
Sufentanil
Tapentadol
Tilidine
Tramadol
Tranylcypromine
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.
Acetophenazine
Aclidinium
Acrivastine
Acyclovir
Alcaftadine
Alfentanil
Almotriptan
Amantadine
Ambenonium
Amdinocillin
Amdinocillin Pivoxil
Amiloride
Amineptine
Aminophylline
Amitriptyline
Amitriptylinoxide
Amoxapine
Amphetamine
Amphotericin B
Ampicillin
Anileridine
Anisotropine
Antazoline
Aripiprazole
Astemizole
Atomoxetine
Atovaquone
Atropine
Azatadine
Azelastine
Azlocillin
Aztreonam
Bacampicillin
Baclofen
Balofloxacin
Belladonna Alkaloids
Benperidol
Benzhydrocodone
Benzphetamine
Bepotastine
Besifloxacin
Betamethasone
Bornaprine
Bremelanotide
Brexpiprazole
Bromodiphenhydramine
Bromperidol
Brompheniramine
Buclizine
Budesonide
Bupivacaine
Buprenorphine
Buspirone
Busulfan
Butorphanol
Butriptyline
Butylscopolamine
Carbamazepine
Carbenicillin
Carbimazole
Carbinoxamine
Carvedilol
Chlorambucil
Chloroquine
Chlorotrianisene
Chlorpheniramine
Chlorphenoxamine
Chlorpromazine
Chlorprothixene
Cimetidine
Cimetropium
Cinnarizine
Ciprofloxacin
Citalopram
Clemastine
Clemizole
Clidinium
Clobetasone
Clomipramine
Clopidogrel
Clothiapine
Clovoxamine
Cloxacillin
Clozapine
Cocaine
Codeine
Conjugated Estrogens
Corticotropin
Cortisone
Cosyntropin
Cyclacillin
Cyclizine
Cyclobenzaprine
Cyclopentolate
Cyclosporine
Cyproheptadine
Dalfampridine
Danazol
Darifenacin
Deflazacort
Delavirdine
Demecarium
Desipramine
Desonide
Desvenlafaxine
Deutetrabenazine
Dexamethasone
Dexbrompheniramine
Dexchlorpheniramine
Dextroamphetamine
Dextromethorphan
Dibenzepin
Dicloxacillin
Dicyclomine
Dienestrol
Diethylstilbestrol
Difenoxin
Dihydroartemisinin
Dihydrocodeine
Dimenhydrinate
Dimethindene
Diphenhydramine
Diphenoxylate
Diphenylpyraline
Distigmine
Dixyrazine
Dolasetron
Donepezil
Dopamine
Dothiepin
Doxepin
Doxofylline
Doxorubicin
Doxorubicin Hydrochloride Liposome
Doxylamine
Droperidol
Duloxetine
Ebastine
Echothiophate
Edrophonium
Efavirenz
Eletriptan
Emedastine
Enflurane
Enoxacin
Epinastine
Escitalopram
Esterified Estrogens
Estradiol
Estramustine
Estriol
Estrone
Estropipate
Ethinyl Estradiol
Ethopropazine
Ethylmorphine
Etomidate
Famotidine
Femoxetine
Fenfluramine
Fentanyl
Fesoterodine
Fexinidazole
Flavoxate
Flecainide
Floxacillin
Fludrocortisone
Flumequine
Flunarizine
Flunisolide
Fluoxetine
Fluphenazine
Fluticasone
Fluvoxamine
Foscarnet
Fosphenytoin
Frovatriptan
Galantamine
Ganciclovir
Gatifloxacin
Glycopyrrolate
Granisetron
Guanidine
Halofantrine
Haloperidol
Hetacillin
Homatropine
Hydrocodone
Hydrocortisone
Hydromorphone
Hydroxyamphetamine
Hydroxychloroquine
Hydroxytryptophan
Hydroxyzine
Hyoscyamine
Ifosfamide
Imipenem
Imipramine
Indalpine
Iobenguane I 123
Iobenguane I 131
Iprindole
Isoflurane
Isoflurophate
Isoniazid
Isopropamide
Ketamine
Ketobemidone
Ketotifen
Lasmiditan
Lemborexant
Levocabastine
Levodopa
Levofloxacin
Levomilnacipran
Levorphanol
Lidocaine
Lindane
Lisdexamfetamine
Lithium
Lofepramine
Lomefloxacin
Lopinavir
Lorcaserin
Loxapine
Maprotiline
Mebeverine
Mebhydrolin
Meclizine
Mefenamic Acid
Mefloquine
Melitracen
Melperone
Memantine
Mepenzolate
Meperidine
Meropenem
Mesoridazine
Mestranol
Metformin
Methadone
Methamphetamine
Methantheline
Methdilazine
Methenolone
Methicillin
Methimazole
Methixene
Methotrimeprazine
Methylphenidate
Methylprednisolone
Methyltestosterone
Metoclopramide
Metopimazine
Metronidazole
Mexiletine
Mezlocillin
Midostaurin
Milnacipran
Mirtazapine
Mizolastine
Morphine
Morphine Sulfate Liposome
Moxifloxacin
Nadifloxacin
Nafcillin
Nalbuphine
Naldemedine
Nalidixic Acid
Naloxegol
Nandrolone
Naratriptan
Nebivolol
Nefazodone
Neostigmine
Nevirapine
Niaprazine
Nicomorphine
Norfloxacin
Nortriptyline
Ofloxacin
Olanzapine
Olopatadine
Ondansetron
Opipramol
Opium
Opium Alkaloids
Oxacillin
Oxaliplatin
Oxandrolone
Oxatomide
Oxybutynin
Oxymetholone
Oxymorphone
Palonosetron
Papaveretum
Paramethasone
Paregoric
Paroxetine
Pazufloxacin
Pefloxacin
Penicillin G
Penicillin V
Pentazocine
Perazine
Periciazine
Perphenazine
Phenindamine
Pheniramine
Phenobarbital
Phenylpropanolamine
Phenyltoloxamine
Phenytoin
Physostigmine
Pimozide
Pipamperone
Piperacillin
Piperaquine
Pipotiazine
Pirenzepine
Piritramide
Pitolisant
Pivampicillin
Pizotyline
Polyestradiol Phosphate
Prednisolone
Prednisone
Procainamide
Procaine
Prochlorperazine
Proguanil
Promazine
Promestriene
Promethazine
Propafenone
Propantheline
Propicillin
Propiverine
Propizepine
Propofol
Propoxyphene
Propranolol
Protriptyline
Prulifloxacin
Pyrilamine
Quetiapine
Quinacrine
Quinestrol
Ranitidine
Remifentanil
Rifampin
Rimexolone
Risperidone
Ritonavir
Rivastigmine
Rizatriptan
Rufloxacin
Safinamide
Scopolamine
Sertraline
Sevoflurane
Sibutramine
Solifenacin
Sparfloxacin
Stanozolol
Sufentanil
Sulbenicillin
Sultamicillin
Sumatriptan
Tacrine
Tapentadol
Temocillin
Terfenadine
Testosterone
Theophylline
Thiethylperazine
Thiopropazate
Thioproperazine
Thioridazine
Thiotepa
Thiothixene
Thonzylamine
Tianeptine
Tibolone
Ticarcillin
Ticlopidine
Tilidine
Timiperone
Timolol
Tolterodine
Tramadol
Trazodone
Trifluoperazine
Triflupromazine
Trimeprazine
Trimipramine
Tripelennamine
Triprolidine
Tropicamide
Trospium
Tryptophan
Umeclidinium
Valbenazine
Valethamate
Varenicline
Venlafaxine
Vilazodone
Vortioxetine
Zidovudine
Ziprasidone
Zolmitriptan
Zuclopenthixol
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.
Aripiprazole Lauroxil
Digoxin
Isavuconazonium Sulfate
Lofexidine
Nirmatrelvir
St John's Wort
Tipranavir
Yohimbine
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.
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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:
Alcohol use, if stopped suddenly, or
Eating disorders (eg, anorexia, bulimia), history of or
Hypertension (high blood pressure), uncontrolled or
Seizure medicine use, if stopped suddenly (eg, carbamazepine (Tegretol®), phenobarbital, phenytoin (Dilantin®)), or
Seizures, or history of or
Sleeping or anxiety medicine use, if stopped suddenly (eg, alprazolam (Xanax®), lorazepam (Ativan®), temazepam (Restoril®), triazolam (Halcion®))—Should not be used in patients with these conditions.
Arteriovenous malformation (circulation problem) or
Brain tumor or infection or
Diabetes or
Drug or alcohol abuse or
Head injury or
Hypoglycemia (low blood sugar) or
Hyponatremia (low sodium in the blood) or
Hypoxia (low oxygen in the blood) or
Liver disease, severe or
Stroke, severe or history of—May increase risk for seizures.
Bipolar disorder (type of depression), or risk of or
Glaucoma, angle closure or
Hypertension (high blood pressure) or
Mania or hypomania (type of mental disease), history of or
Psychosis (type of mental disease)—Use with caution. May make these conditions worse.
End-stage kidney disease or
Liver disease, severe—Use is not recommended in patients with these conditions.
Kidney disease, moderate or severe or
Liver disease, moderate—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. To do so may increase the chance of side effects.
This medicine comes with a Medication Guide. Read and follow these instructions carefully. Ask your doctor if you have any questions.
Follow your doctor's instructions carefully on a reduced-calorie diet plan and regular exercise. Talk with your doctor before starting any exercise program.
Swallow the tablet whole. Do not crush, break, or chew it.
Take this medicine with food. However, do not take it with high-fat meals. This may increase your risk of seizures.
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 (extended-release tablets): For weight loss: Adults—At first, one tablet in the morning taken on week 1. Your doctor will increase your dose to one tablet in the morning and one tablet in the evening on week 2. Then, two tablets in the morning and one tablet in the evening on week 3. On week 4, two tablets in the morning and two tablets in the evening. Children—Use is not recommended.
Missed Dose
If you miss a dose of this medicine, 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
It is very important that your doctor check your progress at regular visits to make sure this medicine is working properly and to check for unwanted effects.
Using this medicine while you are pregnant can harm your unborn baby. Use an effective form of birth control to keep from getting pregnant during therapy. If you think you have become pregnant while using this medicine, tell your doctor right away.
Do not take naltrexone and bupropion combination with a monoamine oxidase (MAO) inhibitor (eg, isocarboxazid [Marplan®], phenelzine [Nardil®], selegiline [Eldepryl®], tranylcypromine [Parnate®]). Do not start taking naltrexone and bupropion combination during the 2 weeks after you stop a MAO inhibitor. Wait 2 weeks after stopping naltrexone and bupropion combination before you start taking a MAO inhibitor. If you take them together or do not wait 2 weeks, you may have confusion, agitation, restlessness, stomach or bowel symptoms, a sudden high body temperature, an extremely high blood pressure, or severe seizures.
Do not use naltrexone and bupropion combination if you are also using Zyban® to quit smoking or Aplenzin® or Wellbutrin® for depression, because they also contain bupropion. Also, do not take this medicine if you are using or have used narcotic drugs (eg, buprenorphine, methadone, or other habit-forming painkillers) within the past 7 to 10 days.
This medicine may cause some people to be agitated, irritable, or display other abnormal behaviors. It may also cause some people to have suicidal thoughts and tendencies or to become more depressed. Make sure the doctor knows if you have trouble sleeping, get upset easily, have a big increase in energy, or start to act reckless. Also tell the doctor if you have sudden or strong feelings, such as feeling nervous, angry, restless, violent, or scared. If you or your caregiver notice any of these side effects, tell your doctor right away.
You have a higher risk of accidental overdose, serious injury, or death if you use heroin or any other narcotic medicine while you are being treated with naltrexone and bupropion combination. Also, naltrexone prevents you from feeling the effects of heroin if you use it.
Do not stop taking this medicine without checking first with your doctor. Your doctor may want you to gradually reduce the amount you are taking before stopping it completely. This is to decrease the chance of having certain side effects when you stop the medicine, such as agitation, anxiety, dizziness, a feeling of constant movement of self or surroundings, headaches, increased sweating, nausea, trembling or shaking, trouble with sleeping or walking, or unusual tiredness.
Your blood pressure might get too high while you are using this medicine. This may cause headaches, dizziness, or blurred vision. You might need to measure your blood pressure at home. If you think your blood pressure is too high, call your doctor right away.
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This medicine may cause a serious type of allergic reaction called anaphylaxis, which can be life-threatening and requires immediate medical attention. Call your doctor right away if you have a rash, itching, swelling of the face, tongue, or throat, trouble breathing, or chest pain.
Serious skin reactions (eg, Stevens-Johnson syndrome) 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 with this medicine.
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.
Check with your doctor right away if blurred vision, eye pain, or any other change in vision occurs during or after treatment. Your doctor may want your eyes be checked by an ophthalmologist (eye doctor).
This medicine may increase the risk of hypoglycemia (low blood sugar) in patients with diabetes. Low blood sugar must be treated before it causes you to pass out (unconsciousness). People feel different symptoms of low blood sugar. It is important that you learn which symptoms you usually have so you can treat it quickly. You should check your blood sugar before you start treatment and while you are taking this medicine.
Drinking alcoholic beverages should be limited or avoided, if possible, with this medicine.
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.
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
Blurred vision discouragement dizziness fear or nervousness feeling sad or empty headache irritability lack of appetite loss of interest or pleasure pounding in the ears slow or fast heartbeat trouble concentrating trouble sleeping unusual tiredness or weakness
Less common
Bladder pain bloody or cloudy urine difficult, burning, or painful urination fast, irregular, pounding, or racing heartbeat or pulse frequent urge to urinate lower back or side pain shakiness in the legs, arms, hands, or feet trembling or shaking of the hands or feet
Less common or rare
Chest pain or discomfort nausea pain or discomfort in the arms, jaw, back, or neck sweating vomiting
Rare
Changes in behavior thoughts of killing oneself
Incidence not known
Aggressive or angry anxiety blistering, peeling, or loosening of the skin chills clay colored stools cough dark urine delusions of persecution, mistrust, suspiciousness, or combativeness diarrhea difficulty with moving difficulty with swallowing dry mouth false beliefs that cannot be changed by facts feeling that others are watching you or controlling your behavior feeling, seeing, or hearing things that are not there fever hives, itching, or rash hyperventilation joint or muscle pain large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or sex organs muscle stiffness puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue red, irritated eyes restlessness severe mood or mental changes sore throat sores, ulcers, or white spots in the mouth or on the lips stomach pain or tenderness swelling of the feet or lower legs tightness in the chest unusual behavior yellow eyes or skin
Get emergency help immediately if any of the following symptoms of overdose occur:
Symptoms of overdose
Blue lips, fingernails, or skin change in or loss of consciousness confusion decreased awareness or responsiveness dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position muscle cramps or spasms severe sleepiness
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
Difficulty having a bowel movement
Less common
Change or loss of taste continuing ringing or buzzing or other unexplained noise in the ears feeling of warmth hearing loss increased sweating redness of the face, neck, arms, and occasionally, upper chest stomach pain
Rare
Feeling of constant movement of self or surroundings indigestion sensation of spinning severe nausea or vomiting thinning of the hair or hair loss
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.
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