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Naltrexone Hcl

Naltrexone hcl Prescription
Generic Name: naltrexone (oral) (nal TREX own)
Brand Name: ReVia
Physician reviewed naltrexone (oral) patient information - includes naltrexone description, dosage and directions.

Average Savings for naltrexone hcl (brand): 60.66%
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Naltrexone Hcl Drug Information:

Naltrexone blocks the effects of opioid medication, including pain relief or feelings of well-being that can lead to opioid abuse. An opioid is sometimes called a narcotic. Naltrexone is used as part of a treatment program for drug or Alcohol dependence. Naltrexone is used to prevent relapse in people who became dependent on opioid medicine and then stopped using it. Naltrexone can help keep you from feeling a "need" to use the opioid. Naltrexone is also used to treat Alcoholism by reducing your urge to drink Alcohol. This may help you drink less or stop drinking completely. Naltrexone will not cause you to "sober up" and will not decrease the effects of Alcohol you recently consumed. Learn more

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Naltrexone Hcl Side Effects

In Summary

Commonly reported side effects of naltrexone include: streptococcal pharyngitis, syncope, anxiety, arthralgia, arthritis, dizziness, drowsiness, fatigue, frequent headaches, headache, joint stiffness, nasopharyngitis, nausea, nervousness, obsessive compulsive disorder, panic attack, pharyngitis, posttraumatic stress disorder, sedated state, sinus headache, vomiting, induration at injection site, malaise, pain at injection site, and tenderness at injection site. Other side effects include: muscle cramps, muscle rigidity, muscle spasm, stiffness, depression, and twitching. See below for a comprehensive list of adverse effects.

For the Consumer

Applies to naltrexone: oral tablet

Other dosage forms:

  • intramuscular powder for suspension extended release

Side effects requiring immediate medical attention

Along with its needed effects, naltrexone 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 while taking naltrexone:

Less common

  • Skin rash

Rare

  • Abdominal or stomach pain (severe)
  • blurred vision, aching, burning, or swollen eyes
  • chest pain
  • confusion
  • discomfort while urinating or frequent urination
  • fever
  • hallucinations or seeing, hearing, or feeling things that are not there
  • itching
  • mental depression or other mood or mental changes
  • ringing or buzzing in the ears
  • shortness of breath
  • swelling of the face, feet, or lower legs
  • weight gain

Side effects not requiring immediate medical attention

Some side effects of naltrexone 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

  • Abdominal or stomach cramping or pain (mild or moderate)
  • anxiety, nervousness, restlessness or trouble sleeping
  • headache
  • joint or muscle pain
  • nausea or vomiting
  • unusual tiredness

Less common

  • Chills
  • constipation
  • cough, hoarseness, runny or stuffy nose, sinus problems, sneezing, or sore throat
  • diarrhea
  • dizziness
  • fast or pounding heartbeat
  • increased thirst
  • irritability
  • loss of appetite
  • sexual problems in males

For Healthcare Professionals

Applies to naltrexone: compounding powder, intramuscular powder for injection extended release, oral tablet

Nervous system

Very common (10% or more): Headache (25%), dizziness/syncope (13%)

Common (1% to 10%): Somnolence/sedation

Frequency not reported: Lethargy, cerebral arterial aneurysm, convulsions, disturbance in attention, dysgeusia, mental impairment, migraine, ischemic stroke, paresthesia

Psychiatric

Very common (10% or more): Insomnia/sleep disorder (14%), anxiety (12%)

Common (1% to 10%): Depression

Uncommon (0.1% to 1%): Suicide attempt/ideation

Frequency not reported: Irritability, abnormal dreams, agitation, alcohol withdrawal syndrome, euphoric mood, delirium, libido decreased

Gastrointestinal

Very common (10% or more): Nausea (33%), vomiting NOS (14%), diarrhea (13%), abdominal pain (11%)

Common (1% to 10%): Dry mouth, toothache

Frequency not reported: Abdominal discomfort, colitis, constipation, flatulence, gastroesophageal reflux disease, gastrointestinal hemorrhage, hemorrhoids, pancreatitis acute, paralytic ileus

Hepatic

Very common (10% or more): Alanine aminotransferase increased (13%), aspartate aminotransferase increased (10%)

Common (1% to 10%): Gamma-glutamyltransferase increased

Frequency not reported: Lymphadenopathy including cervical adenitis, white blood cell count increased, cholecystitis acute, cholelithiasis

Local

Very common (10% or more): Injection site tenderness (45%), injection site induration (35%), injection site pain (17%), other injection site reaction (primarily nodules, swelling) (15%), injection site pruritus (10%)

Common (1% to 10%): Injection site ecchymosis

Musculoskeletal

Very common (10% or more): Arthralgia/arthritis/joint stiffness (12%)

Common (1% to 10%): Back pain/stiffness, muscle cramps

Frequency not reported: Chills, joint stiffness, muscle spasms, myalgia, pain in limb

Other

Very common (10% or more): Asthenic conditions (23%)

Frequency not reported: Chest pain, chest tightness, abortion missed

Cardiovascular

Frequency not reported: Angina pectoris, angina unstable, atrial fibrillation, cardiac failure congestive, coronary artery atherosclerosis, myocardial infarction, palpitations, deep vein thrombosis

Respiratory

Frequency not reported: Chronic obstructive pulmonary disease, dyspnea, pharyngolaryngeal pain, sinus congestion

Dermatologic

Common (1% to 10%): Rash

Frequency not reported: Face edema, night sweats, pruritus, sweating increased

Metabolic

Very common (10% or more): Anorexia/appetite decreased NOS/appetite disorder NOS (14%)

Frequency not reported: Weight decreased, weight increased, appetite increased, dehydration

Renal

Very common (10% or more): Abnormal creatinine phosphokinase levels (17%)

Hematologic

Frequency not reported: Eosinophil counts increased, decreased platelet count

Ocular

Frequency not reported: Conjunctivitis, vision blurred

Hypersensitivity

Frequency not reported: Hypersensitivity reaction (including angioneurotic edema and urticaria)

Postmarketing reports: Anaphylaxis

Immunologic

Very common (10% or more): Pharyngitis (11%)

Common (1% to 10%): Nasopharyngitis

Frequency not reported: Seasonal allergies

Editorial References and Review

Medically reviewed by USARx EDITORIAL TEAM Last updated on 1/1/2020.

Source: Drugs.com Naltrexone Hcl (www.drugs.com/mtm/naltrexone.html).