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Lactaid Ultra

Generic name: lactase

Brand names: Lactaid, Lactaid Fast Act, Lactaid Ultra, Lac-Dose, Lactrase, Surelac

Last updated November 2, 2026 0 views
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What is Lactaid Ultra?

Lactaid Ultra is an enzyme that helps your body break down lactose found in dairy products. If you are lactose intolerant, eating a dairy product can lead to gas, bloating, stomach pain, or diarrhea.

Lactaid Ultra is a dietary supplement that can help prevent these symptoms in people with lactose intolerance who consume milk or other dairy products.

It is not known if Lactaid Ultra is effective for treating any medical condition. The FDA has not approved this product for medicinal use. This medicine should not replace any medication prescribed by your doctor.

Lactaid Ultra is typically sold as a dietary supplement. There are no regulated standards for manufacturing supplements, and some products on the market have been found to contain toxic metals or other drugs. Dietary supplements should be bought from a trustworthy source to reduce the risk of contamination.

Lactaid Ultra may also be used for reasons not mentioned in this product guide.

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How should I take Lactaid Ultra?

When thinking about using a supplement, talk to your doctor. You might also want to consult a practitioner who knows about herbal or health supplements.

If you decide to use Lactaid Ultra, follow the instructions on the package or those given by your doctor, pharmacist, or other healthcare provider. Do not take more of this product than what is recommended on the label.

Take Lactaid Ultra with the first bite or sip of any dairy product you eat or drink. You can take this medicine every day with each meal and snack that has dairy.

If you eat more dairy products after 30 to 45 minutes, take Lactaid Ultra again.

Contact your doctor if you still have symptoms of lactose intolerance or if your symptoms worsen while using this product.

Store at room temperature, away from moisture and heat. Do not refrigerate.

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Warnings

Follow all instructions on the label and package. Use exactly as directed.

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Before taking this medicine

This product may contain phenylalanine and could be harmful if you have phenylketonuria (PKU).

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

Do not give Lactaid Ultra to a child younger than 4 years old.

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

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Lactaid Ultra 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.

Less serious side effects may happen more often, and you might not have any at all.

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.

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What happens if I miss a dose?

Take your dose as soon as possible at the start of a meal or snack. Do not take two doses at the same time.

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What happens if I overdose?

An overdose of Lactaid Ultra is unlikely to cause serious symptoms.

Avoid taking your dose too early or too late in relation to a meal that contains dairy, or Lactaid Ultra may be less effective.

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What other drugs will affect Lactaid Ultra?

Other drugs may affect Lactaid Ultra, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell your doctor about all other medicines you use.

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Related medicines

Before you take this medicine: the information on this page is general and may not cover your personal circumstances. Read the label supplied with your medicine and ask a pharmacist or doctor if you are unsure, especially if you are pregnant, breastfeeding, taking other medicines or managing a long-term condition.
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Content is provided for education and is not medical advice. See our medical disclaimer.