November 25, 2015
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ALBENZA (albendazole) is an orally administered anthelmintic drug. Chemically, it is methyl 5(propylthio)-2-benzimidazolecarbamate. Its molecular formula is C12H15N3O2S. Its molecular weight is 265.34. It has the following chemical structure:

ALBENZA® (albendazole) Structural Formula Illustration

Albendazole is a white to yellowish powder. It is freely soluble in anhydrous formic acid and very slightly soluble in ether and in methylene chloride. Albendazole is practically insoluble in alcohol and in water.


Each white to off-white, circular, biconvex, bevel-edged film coated, TILTAB tablet is debossed with “ap” and “550” and contains 200 mg of albendazole.

Inactive ingredients consist of: carnauba wax, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, povidone, sodium lauryl sulfate, sodium saccharin, sodium starch glycolate, and starch.

Chewable Tablets

Each round, mottled pink, concave chewable tablet is debossed with “ap” above “551” and contains 200 mg of albendazole.

Inactive ingredients consist of: lactose monohydrate, microcrystalline cellulose, D-mannitol, sodium starch glycolate, povidone, N-C Wild Berry Type Flavor, magnesium stearate, crospovidone, polyvinyl acetate, sucralose, colloidal silicone dioxide, sodium lauryl sulfate, D&C Red #30/Helendon Pink Aluminum Lake.

What are the possible side effects of albendazole (Albenza)?

Get emergency medical help if you have any of these signs of an allergic reaction: 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 may include:

  • stomach pain;
  • nausea, vomiting;
  • headache, dizziness;...

Read All Potential Side Effects and See Pictures of Albenza »

What are the precautions when taking albendazole (Albenza)?

Before taking albendazole, tell your doctor or pharmacist if you are allergic to it; or to other benzimidazole anthelmintic drugs (e.g., mebendazole); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: liver disease, biliary tract problems (e.g., blockage), blood/bone marrow disorders.

This medication may cause liver problems. Because drinking alcohol increases the risk of liver problems, limit alcoholic beverages while using this medication. Check with your doctor or pharmacist for more information.

During pregnancy, this medication should be...

Read All Potential Precautions of Albenza »

Last reviewed on RxList: 6/29/2015
This monograph has been modified to include the generic and brand name in many instances.

Albenza - User Reviews

Albenza User Reviews

Now you can gain knowledge and insight about a drug treatment with Patient Discussions.

Here is a collection of user reviews for the medication Albenza sorted by most helpful. Patient Discussions FAQs

Report Problems to the Food and Drug Administration


You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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