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Albendazole (Oral)

Generic name: albendazole [ al-BEN-da-zole ]
Brand name: Albenza
Drug class: Anthelmintics

Medically reviewed by Drugs.com. Last updated on Sep 4, 2023.

Uses for albendazole

Albendazole is used to treat neurocysticercosis, an infection of the nervous system caused by pork tapeworms. This medicine is also used to treat cystic hydatid disease of the liver, lung, and peritoneum, an infection caused by dog tapeworms.

Albendazole is used to treat infections caused by worms. It works by keeping the worm from absorbing sugar (glucose), so that the worm loses energy and dies.

This medicine is available only with your doctor's prescription.

Before using albendazole

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 performed to date have not demonstrated pediatric-specific problems that would limit the usefulness of albendazole to treat neurocysticercosis in children. However, hydatid disease is uncommon in children.

Geriatric

Although appropriate studies on the relationship of age to the effects of albendazole have not been performed in the geriatric population, no geriatric-specific problems have been documented to date.

Breast Feeding

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.

Interactions with Medicines

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 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.

Interactions with Food/Tobacco/Alcohol

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 may cause an increased risk of certain side effects 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.

Other Medical Problems

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:

Proper use of albendazole

Use this medicine exactly as directed by your doctor. Do not use more of it, do not use it more often, and do not use it for a longer time than your doctor ordered. To do so may increase the chance of side effects.

No special preparations (fasting, laxatives, or enemas) or other steps are necessary before, during, or immediately after treatment with albendazole.

Take this medicine with meals, especially with food containing fat, to help your body absorb the medicine better.

You may crush or chew the tablet and swallow it with water.

If you are using this medicine for neurocysticercosis, your doctor will give you additional medicines (eg, seizure medicine or steroids) while you are taking this medicine.

To help clear up your infection completely, take this medicine exactly as directed by your doctor for the full time of treatment. In some infections, additional treatments with this medicine may be needed at 2-week intervals to clear up the infection completely. Do not miss any doses.

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.

Missed Dose

If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, 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 while using albendazole

It is important that your doctor check your or your child's progress at regular visits to make sure that the infection is cleared up completely. Blood tests may be needed to check for unwanted effects.

If your symptoms do not improve after you have taken this medicine for the full course of treatment, or if they become worse, check with your doctor.

Using this medicine while you are pregnant can harm your unborn baby. Use an effective form of birth control during treatment and for 3 days after the last dose. If you think you have become pregnant while using this medicine, tell your doctor right away. Also, your doctor should give you a pregnancy test before you start the medicine to make sure you are not pregnant.

Albendazole can temporarily lower the number of white blood cells in your blood, increasing the chance of getting an infection. It can also lower the number of platelets, which are necessary for proper blood clotting. If this occurs, there are certain precautions you can take, especially when your blood count is low, to reduce the risk of infection or bleeding:

For patients treated for neurocysticercosis, this medicine may increase your risk for increased pressure in the head or seizures. Tell your doctor right away if you have these symptoms.

Check with your doctor right away if you have pain or tenderness in the upper stomach, pale stools, dark urine, loss of appetite, nausea, vomiting, or yellow eyes or skin. These could be symptoms of a serious liver problem.

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 of albendazole

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:

Less common

Rare

Incidence not known

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

Less common

Rare

Incidence not known

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.

Commonly used brand name(s)

In the U.S.

Available Dosage Forms:

Therapeutic Class: Anthelmintic

Chemical Class: Benzimidazole

Frequently asked questions

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.