Note: This document contains side effect information about albendazole. Some of the dosage forms listed on this page may not apply to the brand name Albenza.
Applies to albendazole: oral tablet
Along with its needed effects, albendazole (the active ingredient contained in Albenza) 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 albendazole:
Incidence not known
Some side effects of albendazole 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:
Incidence not known
Applies to albendazole: compounding powder, oral tablet, oral tablet chewable
Side effects differed between hydatid disease and neurocysticercosis. Symptoms were generally mild and resolved without treatment. Therapy was discontinued primarily due to leukopenia (0.7%) or hepatic abnormalities (3.8% in hydatid disease).
Very common (10% or more): Elevated liver enzymes (up to 16%)
Uncommon (0.1% to 1%): Hepatitis
Frequency not reported: Hepatotoxicity, hepatic abnormalities, jaundice, hepatocellular damage
Postmarketing reports: Acute liver failure
Mild to moderate elevated liver enzymes were very common.
Severe hepatic abnormalities, including jaundice and hepatocellular damage (possibly irreversible), have been reported during prolonged higher dose treatment of hydatid disease.
Elevated liver enzymes and hepatitis have also been reported during postmarketing experience.
Very common (10% or more): Headache (up to 11%)
Common (1% to 10%): Raised intracranial pressure, dizziness, neurological events
Uncommon (0.1% to 1%): Vertigo, meningeal signs
Postmarketing reports: Somnolence, convulsion
Headache has also been reported during postmarketing experience.
Common (1% to 10%): Epigastric/abdominal pain, nausea, vomiting, upper gastrointestinal (GI) symptoms, GI disturbances
Uncommon (0.1% to 1%): Diarrhea
Rare (less than 0.1%): Pancreatitis
Upper GI symptoms (e.g., epigastric/abdominal pain, nausea, vomiting) and GI disturbances (abdominal pain, nausea, vomiting) were reported.
Diarrhea has also been reported during postmarketing experience.
Common (1% to 10%): Reversible alopecia (thinning of hair, moderate hair loss)
Uncommon (0.1% to 1%): Itchiness, skin rashes
Postmarketing reports: Erythema multiforme, Stevens-Johnson syndrome
Reversible alopecia (thinning of hair and moderate hair loss) has also been reported during postmarketing experience.
Fever has also been reported during postmarketing experience.
Common (1% to 10%): Fever, hyperpyrexia
Postmarketing reports: Asthenia
Agranulocytosis and pancytopenia have also been reported during postmarketing experience.
Patients with liver disease (including hepatic echinococcosis) appeared more susceptible to bone marrow suppression.
Common (1% to 10%): Leukopenia
Rare (less than 0.1%): Low red cell count, pancytopenia, thrombocytopenia
Frequency not reported: Granulocytopenia, agranulocytosis
Postmarketing reports: Aplastic anemia, bone marrow suppression, neutropenia
Uncommon (0.1% to 1%): Hypersensitivity reactions (including rash, pruritus, urticaria)
Rare (less than 0.1%): Ocular maculopathy
Frequency not reported: Retinal damage
Postmarketing reports: Blurred vision
Rare (less than 0.1%): Bone pain
Postmarketing reports: Rhabdomyolysis
Rare (less than 0.1%): Proteinuria
Postmarketing reports: Acute renal failure
Medically reviewed by BestRx Medical Team Last updated on 1/1/2020.
Source: Drugs.com Albenza