Lactaid and Vomiting: What Users Say

• Thi...
• Taken for 1 to 6 months
• January 5, 2021

For Lactose Intolerance "This worked once or twice. Four days ago, I became ill after taking these pills, not knowing what my problem was. I was vomiting, had diarrhea, and was shaking. I had other symptoms but I ended up going for a COVID test because I was so ill. Only 4 days passed, and I took the pills again tonight. Here I am, typing this from the bathroom floor, extremely nauseous, and just had diarrhea. DO NOT BUY THESE. It is not worth the bathroom time and how rubbish they make you feel."

• Som...
• Taken for less than 1 month
• September 27, 2019

For Lactose Intolerance "I have tried these pills twice. Once last week, and I got violently ill, vomiting for 5 hours straight, and then diarrhea about 4 hours later. The vomiting was so bad that I couldn’t hardly breathe in between. I got cold chills and was sweating profusely. It was absolutely awful. I tried again last night, not knowing what exactly caused the illness the first time. Same exact thing. No way will I ever take another one of these or suggest them to anyone."

• Stu...
• Taken for less than 1 month
• June 23, 2014

For Lactose Intolerance "My 10-year-old son would get stomach cramps and diarrhea every time he tried milk. We tried Lactaid on two different occasions a few weeks apart, and both times it caused vomiting. Obviously, something in the pills does not agree with him."

• Hos...
• Taken for less than 1 month
• December 30, 2021

For Lactose Intolerance "Worst experience of my life. When I turned 30, I started becoming lactose intolerant. When I was 37, I thought I would try Lactaid to see if I could eat dairy again without issue. I had severe stomach pain and vomiting. It was that screaming type of vomiting. The pain was so bad I thought my gallbladder burst. I didn’t think it was the pills and thought something was wrong with me. Things settled down the next day, so after a week of no issues, I figured it was a stomach bug, so I popped a Lactaid and had two slices of pizza. It was worse than the first time. The pain became so intense I was rushed to the hospital. I was gripping the bedrail from how severe the pain was. They had to give me pain medication through an IV to get it to stop. I saw a doctor and had multiple tests done to check my gallbladder. Nothing seemed wrong. Then I thought to look up Lactaid. I was amazed how many people had severe reactions to this stuff. Stay away from it."

• Mz ...
• Taken for less than 1 month
• December 27, 2017

For Lactose Intolerance "This is my second time trying this pill. The first was about ten years ago. Therefore, I brushed the side effects to the side and thought it was just me. This time, I took two pills, and all I can say is that I will never try them again! Maybe it’s just me, but I vomited, had diarrhea, and my stomach hurt for hours. I prayed to the porcelain queen like no other. All I wanted was a mini bar of ice cream, but after feeling so bad, I’d rather deal with the side effects from having the ice cream."

• N61...
• Taken for less than 1 month
• June 12, 2023

For Lactose Intolerance "This made me so much sicker than the discomfort I experience from eating dairy. Twice now I've ended up with overwhelming nausea, vomiting, and diarrhea. I only figured it out because both of these happened after using Lactaid. There's no warning on the box at all, but trust me, it's horrible. It takes about 3 days to feel better."

• So ...
• Taken for less than 1 month
• November 12, 2021

For Lactose Intolerance "This is the second time I used Lactaid. OMG, did I get sick! Within one hour of taking it, I was having diarrhea. Then came severe vomiting! Had no time to lift up my toilet seat! What a freakin' mess! I was so thirsty, but each time I drank water, back to hugging the toilet I went! Had chills and a low-grade fever. I have no idea why this reacted the way it did, but I will never take it again! PS. I finally discovered why I had gotten sick over my sister's house a month ago. Thought I had a 24-hour bug. But finding out today, it was the Lactaid she gave me!"

• may...
• Taken for less than 1 month
• September 16, 2020

For Lactose Intolerance "I agree with previous reviewers, this product, Lactaid, should be reported to the FDA. As I've gotten older, I seem to have trouble digesting some cheeses. Last night, we had cheese omelets. I decided to try a Lactaid chewable. Three hours later, I felt so ill overall and then vomited for an hour. I had this same effect about 4 years ago when I tried Lactaid but stupidly decided to try it again. People need to be warned about this."

• RNa...
• Taken for 6 months to 1 year
• March 9, 2022

For Lactose Intolerance "I am mildly lactose intolerant and have used Lactaid brand milk for several months without issue. Suddenly, one day after ingesting this product, I became violently ill with extreme stomach pain and vomiting. This occurred almost immediately and lasted for nearly 10 hours. I was fairly certain that I was experiencing a reaction to the Lactaid product for a number of reasons. I think most people experiencing this level of pain would have rushed to the emergency room. Don't ingest things your body can't process, regardless of what they tell you."

• Emi...
• October 6, 2021

For Lactose Intolerance "The first time I took this, I experienced extreme stomach ache, believing that my body was just not used to it. A few hours later, I experienced diarrhea. I was very confused, but I used it again the next few days, and the second time, it did the same thing. The only difference was I experienced horrible vomiting, my throat was burning so bad I was in horrible pain. After doing some research about it, many people have experienced the same thing. DON’T BUY THEM, NOT WORTH IT."