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SureLac Side Effects

Generic Name: lactase

Note: This page contains side effects data for the generic drug lactase. It is possible that some of the dosage forms included below may not apply to the brand name SureLac.

For the Consumer

Applies to lactase: chewable tablets

Other dosage forms:

When used in small doses, no COMMON side effects have been reported with lactase (the active ingredient contained in SureLac) chewable tablets. Seek medical attention right away if any of these SEVERE side effects occur while taking lactase:

Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue).

For Healthcare Professionals

Applies to lactase: oral capsule, oral liquid, oral tablet, oral tablet chewable


In general, side effects have not been reported with the use of lactase (the active ingredient contained in SureLac) [Ref]


1. "Product Information. Lactaid (lactase)." McNeil Consumer Healthcare, Fort Washington, PA.

It is possible that some side effects of SureLac may not have been reported. These can be reported to the FDA here. Always consult a healthcare professional for medical advice.

More about SureLac (lactase)

Consumer resources

Other brands: Lactaid, Lactaid Ultra

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Disclaimer: Every effort has been made to ensure that the information provided is accurate, up-to-date and complete, but no guarantee is made to that effect. In addition, the drug information contained herein may be time sensitive and should not be utilized as a reference resource beyond the date hereof. This material does not endorse drugs, diagnose patients, or recommend therapy. This information is a reference resource designed as supplement to, and not a substitute for, the expertise, skill , knowledge, and judgement of healthcare practitioners in patient care. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate safety, effectiveness, or appropriateness for any given patient. does not assume any responsibility for any aspect of healthcare administered with the aid of materials provided. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the substances you are taking, check with your doctor, nurse, or pharmacist.