Bifidobacterium longum

Generic name: bifidobacterium longum
Brand names: Align, Align 24/7 Digestive Support
Drug class: Probiotics

Medically reviewed by Drugs.com on May 6, 2025. Written by Cerner Multum.

What is bifidobacterium longum?

Bifidobacterium longum has been used as a probiotic, or "friendly bacteria," to prevent the growth of harmful bacteria in the stomach and intestines.

Some uses not proven with research have included stomach pain or upset.

It is not certain whether bifidobacterium longum is effective in treating any medical condition. Medicinal use of this product has not been approved by the FDA. Bifidobacterium longum should not be used in place of medication prescribed for you by your doctor.

Bifidobacterium longum is often sold as an herbal supplement. There are no regulated manufacturing standards in place for many herbal compounds and some marketed supplements have been found to be contaminated with toxic metals or other drugs. Herbal/health supplements should be purchased from a reliable source to minimize the risk of contamination.

Bifidobacterium longum may also be used for purposes not listed in this product guide.

Bifidobacterium longum side effects

Get emergency medical help if you have signs of an allergic reaction: hives, difficult breathing, swelling of your face, lips, tongue, or throat.

Stop using bifidobacterium longum and call your healthcare provider at once if you have:

• signs of infection--fever, chills, sore throat, body aches, unusual tiredness, loss of appetite, bruising or bleeding.

Common side effects of bifidobacterium longum may include:

• bloating or gas.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Related/similar drugs

Warnings

Follow all directions on the product label and package. Tell each of your healthcare providers about all your medical conditions, allergies, and all medicines you use.

Before taking this medicine

Before using bifidobacterium longum, talk to your healthcare provider. You may not be able to use this product if you have certain medical conditions.

Ask a doctor, pharmacist, or other healthcare provider if it is safe for you to use this product if you have:

• a weak immune system (caused by disease or by using certain medicines);

• milk allergy or lactose intolerance; or

• soy allergy.

Ask a doctor before using this product if you are pregnant or breastfeeding.

Do not give any herbal/health supplement to a child without medical advice.

How should I take bifidobacterium longum?

If you choose to use bifidobacterium longum, use it as directed on the package or as directed by the doctor, pharmacist, or other healthcare provider. You may also consider consulting a practitioner who is trained in the use of herbal/health supplements. Do not use more of this product than is recommended on the label.

Your dose needs may change if you switch to a different brand, strength, or form of this product. Avoid medication errors by using exactly as directed on the label, or as prescribed by your doctor.

Bifidobacterium longum is taken once per day.

Call your doctor if the condition you are treating with bifidobacterium longum does not improve, or if it gets worse while using this product.

Store this product in the original container at room temperature away from moisture and heat.

What happens if I miss a dose?

Skip the missed dose and take the next regularly scheduled dose.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

What should I avoid while taking bifidobacterium longum?

Follow your healthcare provider's instructions about any restrictions on food, beverages, or activity.

What other drugs will affect bifidobacterium longum?

Ask a doctor or pharmacist before taking bifidobacterium longum with any other medicines, especially:

• antibiotics.

This list is not complete. Other drugs may affect bifidobacterium longum, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.

Further information

• Consult with a licensed healthcare professional before using any herbal/health supplement. Whether you are treated by a medical doctor or a practitioner trained in the use of natural medicines/supplements, make sure all your healthcare providers know about all of your medical conditions and treatments.

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

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

Medical Disclaimer

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