Albendazole Side Effects
Some side effects of albendazole may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.
For the Consumer
Applies to albendazole: oral tablet
Get emergency medical help if you have any of these signs of an allergic reaction while taking albendazole: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have any of these serious side effects:
easy bruising or bleeding, unusual weakness;
fever, sore throat, and headache with a severe blistering, peeling, and red skin rash; or
fever with chills, body aches, or flu-like symptoms.
Less serious side effects of albendazole may include:
headache, dizziness; or
temporary hair loss.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.
For Healthcare Professionals
Applies to albendazole: compounding powder, oral tablet
The side effects of albendazole differ between hydatid disease and neurocysticercosis. The symptoms were generally mild and resolved without treatment. Treatment was discontinued primarily due to leukopenia (0.7%) or hepatic abnormalities (3.8% in hydatid disease).
Dermatologic side effects have included reversible alopecia (1.6% in hydatid disease; less than 1% in neurocysticercosis). Erythema multiforme and Stevens-Johnson syndrome have been reported during postmarketing experience.
Hypersensitivity side effects have included hypersensitivity reactions (including rash and urticaria) in less than 1% of patients.
Renal side effects have included acute renal failure during postmarketing experience.
Hepatic side effects have included abnormal liver function tests (15.6% in hydatid disease; less than 1% in neurocysticercosis) and hepatotoxicity (greater than or equal to 1%). Hepatic abnormalities, acute liver failure, elevations of hepatic enzymes, and hepatitis have been reported during postmarketing experience.
Hematologic side effects have rarely included granulocytopenia, agranulocytosis, pancytopenia, and thrombocytopenia. Leukopenia has been reported in less than 1% of patients. Aplastic anemia, bone marrow suppression, and neutropenia have been reported during postmarketing experience.
Gastrointestinal side effects have included abdominal pain (6% in hydatid disease), nausea/vomiting (3.7% in hydatid disease; 6.2% in neurocysticercosis).
Nervous system side effects have included headache (1.3% in hydatid disease; 11% in neurocysticercosis), dizziness/vertigo (1.2% in hydatid disease; less than 1% in neurocysticercosis), raised intracranial pressure (1.5% in neurocysticercosis), meningeal signs (1% in neurocysticercosis).
Other side effects have included fever (1% in hydatid disease).
Ocular side effects have included retinal damage.
More albendazole resources
- albendazole Concise Consumer Information (Cerner Multum)
- albendazole MedFacts Consumer Leaflet (Wolters Kluwer)
- albendazole Advanced Consumer (Micromedex) - Includes Dosage Information
- Albendazole Professional Patient Advice (Wolters Kluwer)
- Albendazole Monograph (AHFS DI)
- Albenza Prescribing Information (FDA)
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