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Lactase and Diarrhea: What Users Say (Page 3)

Brand names: Lactaid, Lactaid Fast Act, Colief, Dairy Ease, Dairy Digest, Lactrase, Lac-Dose, Lactaid Extra Strength, Lactaid Ultra

Reviews for Lactase

Commonly mentioned side effects
  • LAC...
  • Taken for less than 1 month
  • February 7, 2022

For Lactose Intolerance "Like others, I wish I’d seen these comments earlier. I’m new to lactose intolerance, but nobody mentioned the treatment could be worse! So yeah, I had ALL the experiences above twice in the last week (have had a COVID test today as a result) & the only thing that lines up is the use of this drug to counteract dairy! Vomiting, diarrhea, chills, sweats, legs went out from under me, the works! Convinced I had food poisoning the first time, the second time (today) figured it HAD to be COVID… until I saw these comments. Thanks everyone for baring your souls & sharing your horrors so that I don’t feel alone ♥️"

1 / 10
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3 Report
  • Not...
  • Taken for less than 1 month
  • May 19, 2024

Lactase for Lactose Intolerance "Took 2 chewable lactose tablets approximately 4 minutes prior to having sausage gravy with milk. Before I took my first bite of food, my abdomen was bloated with gas (we're talking 45-60 seconds of flatulence). This is worse than just having milk. Nausea accompanied, within another 8-10 minutes, and diarrhea within 30 minutes. I'd taken it before and it worked about half the time. One thing to note: I am on a carnivore diet for the past 4 years, so my gut biome is drastically different than what it used to be. Without taking Lactaid and staying away from milk products, I do not have gas ever. Nor do I get diarrhea. I am strict on this diet. I had no biscuits with this meal, only eggs and sausage gravy made with milk, but the symptoms started before my first bite of food and only after taking the medication. So there's an anecdotal correlation and only a possible causation. More studies should be done."

4 / 10
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0 Report
  • Lii...
  • Taken for less than 1 month
  • September 4, 2015

Lactase for Lactose Intolerance "I have taken Lactaid Fast Act twice now (one week apart). Both times, within hours, I had diarrhea and vomiting. Won't be using this product again."

1 / 10
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8 Report

Frequently asked questions

  • Val...
  • Taken for less than 1 month
  • October 13, 2022

For Lactose Intolerance "I took it 3 times. The first time I felt ill, dizzy, and the last 2 times I had diarrhea and vomiting like never before. It was horrible. I will never take these pills again."

1 / 10
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3 Report
  • Ric...
  • Taken for 10 years or more
  • November 11, 2019

For Lactose Intolerance "Long time lactose intolerance with gas, bloating, and diarrhea. Once discovered and found Lactaid (and now Kirkland brand Lactase Fast Act), all is well."

10 / 10
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4 Report

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Reviews may be edited to correct grammar/spelling or remove inappropriate content. Reviews appearing to come from parties with a vested interest are not published. This information is not intended to endorse any medication and should not replace the expertise and judgment of healthcare professionals.