Lactase and Diarrhea: What Users Say (Page 2)

• VMo...
• Taken for less than 1 month
• December 15, 2019

For Lactose Intolerance "I tried this pill (Walmart Equate brand) on the advice of a friend who heard about it but hadn’t used them herself. I tried them for the first time last Thursday right before I went to a hockey game. Within 2 hours, I was extremely violently ill! I’ve never vomited like this in my life. I threw up for hours, and then came the diarrhea. It was so painful and maybe one of the worst experiences of my life. I couldn’t eat for about 24 hours. Today, 3 days later, I took two pills before having milk. Here I am now, 2 hours later, vomiting again! I do not recommend this product."

• But...
• Taken for less than 1 month
• August 26, 2020

For Lactose Intolerance "My experience was many years ago, but I’m relieved to see I’m not the only one who can’t take this stuff. I was experiencing lactose intolerance type symptoms, so I took Lactaid and wound up sicker than I’ve ever been in my life. I honestly thought I might have to go to the hospital. Abdominal pain, diarrhea 'til I bled, vomiting. I pinpointed it finally to the two times I took Lactaid and one other time someone gave me lactose-free milk, which has lactose enzymes in it. It took me a couple or so really horrible experiences to figure it out, but by process of elimination, it was the only “new” thing in my diet. The subject has come up again because I’m having intestinal issues and exploring lactose-free dairy. I see it all contains lactase, so I will be avoiding it altogether, which makes me sad as I’m a dairy junkie."

• Ann...
• Taken for less than 1 month
• October 19, 2018

For Lactose Intolerance "I have a pretty mild lactose intolerance usually. A big dairy meal can result in an upset stomach, cramping, and gas. I tried a lactase enzyme to hopefully relieve my minor symptoms. Upon taking the pill, my symptoms seriously escalated! I’ve tried it twice now, and both resulted in a terrible upset stomach, diarrhea, and vomiting. Googling the enzyme reveals no side effects, but after looking through these reviews, I’d recommend using it with caution!"

• Jes...
• Taken for less than 1 month
• February 28, 2023

Lactase for Lactose Intolerance "This is the first time I’ve bought this brand, and the rest of the stories sound very familiar. I took 1 pill and ate 2 slices of pepperoni pizza, and I was in the toilet with cramps all day. Then tried 3 pills. Same. With 2 slices of pizza, and nope, it did not help. I felt cramps, so much bloating, and constipation, then diarrhea. What a bad experience!! I thought this would help me, but no. Do not recommend this brand. I bought it at CVS."

• Coc...
• Taken for less than 1 month
• February 22, 2023

For Lactose Intolerance "Tried these about six months ago, and within a few hours, was vomiting along with profuse cold sweating. Thought it was a bug or perhaps the pills were past their expiration date. Tossed that bottle and worked up the nerve to try them again. Big mistake. Two hours after taking them, nausea and stomach cramps set in. Vomiting and the worst diarrhea ever set in soon after. Will not be taking these again."

• Anonymous
• Taken for 1 to 6 months
• May 13, 2019

Lactase for Lactose Intolerance "I have been using Lactaid milk for a while for my morning cup of coffee and still had issues with bloating and gas, so I recently decided to use the Lactaid Fast Act. I noticed that there were days when my stomach would hurt an hour or two after the pill, but nothing too insanely bad. But today, I only drank my coffee and one of the pills, and three hours later at work, I was in a cold sweat and puking my life away. I hate leaving early, so it was super embarrassing, and when I got home, I felt the same stomach pain I usually get from the Lactaid pill, and additionally, I started having really bad diarrhea. This pill was supposed to make me more comfortable, but I almost puked all over my coworkers and pooped to within an inch of my life at home. I'm hesitant to ever take these again."

• Nev...
• March 6, 2021

For Lactose Intolerance "Do not take this stuff. 1 pill, horrible gas pain, vomiting, diarrhea. I read the other reviewers, exactly my experience. I am now laying in bed, after 3 hours of vomiting and diarrhea. Worse I've ever been. FDA, take this off the market!!!"

• Eco...
• Taken for less than 1 month
• September 24, 2019

Lactase for Lactose Intolerance "I've been lactose intolerant since I was a young child, but I never took anything for it. I avoided regular milk and have only used Lactaid milk or soy. A couple of weeks ago, I decided to try Lactaid Fast Acting pills because I was tired of the gas and upset stomach. This medicine has caused me severe stomach pains and diarrhea. I am currently curled up in a ball in pain. I would rather have terrible gas than take this pill again."

• Ant...
• Taken for less than 1 month
• February 6, 2021

For Lactose Intolerance "I used the Lactaid chewable tablets for a good two weeks. Everything was fine until a few days ago when I took it and got extremely sick, sicker than I've actually ever been in a while. I had uncontrollable diarrhea for 2 days, horrible nausea, couldn't eat anything besides cereal without instantly triggering the diarrhea and insane nausea. I've now gone three days without taking this, and I'm feeling significantly better. These symptoms are worse than what I get by just eating dairy on its own, so I guess I'll just take my chances with that. This product needs to be recalled."

• Lac...
• February 28, 2019

For Lactose Intolerance "I drank coffee with cream and sugar, and I’m a lactose intolerant person. I felt bloated, constipation, and pain in my stomach. It was time to eat a Lactaid pill. I ate two and got even more sick. I had diarrhea all evening, and my stomach was in pain. I was thinking, what if I didn’t take the pill and just let it run its course? It’s good to know there are others out there that have issues with the pill, leaving me not alone."

• Emi...
• October 6, 2021

Lactase 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."

• Lac...
• Taken for 5 to 10 years
• January 3, 2020

For Lactose Intolerance "I usually take the Equate brand of Lactaid (usually 2 pills depending on the amount of dairy I'm going to eat with the first bite of said dairy), and I had very little to no problems when taking it. But I bought the name brand Lactaid and did the same thing when taking the pills, yet I've been sick for 3 days with bloating, gas, and diarrhea. My rating reflects the use of the name brand Lactaid, not the Equate version."

• HOR...
• Taken for less than 1 month
• September 1, 2022

For Lactose Intolerance "My mom bought these for me a while ago. I was hesitant to try, as I’d read some pretty bad reviews. I have lactose intolerance, it’s not life-debilitating (usually just gives me diarrhea or stomach pain), but sometimes I just want some dairy! So finally, a few weeks ago, I gave them a try. They worked, so I tried them maybe 3 other times. Then, last week, oh man. I tried them with my dinner (pasta with creamy sauce), and 2 hours later, when I got home, I had severe back pain, nausea, the shakes, etc. I vomited for the first time as an adult. I had about 3 sessions, puking 10 times altogether, and diarrhea too. I thought I had food poisoning! Fast forward to today, a week later, I wanted cheese, so I had lactaid again because I figured my illness was from food. Exactly 2 hours later, my back began to hurt, and I ended up experiencing the EXACT same thing. I’m sitting here now, still shaky. DO NOT USE THESE. This is 10,000 times worse than ANY effect I’ve had from dairy. Feel better, everyone."

• Wal...
• January 6, 2020

For Lactose Intolerance "The first time I took this pill, I didn't experience any side effects. Then I took the chewable a week later, and I had the worst experience that I have had in my life! I was extremely nauseous, weak, shaking, had the chills, and had severe diarrhea. I thought I had gotten sick or something, so I tried the pill again, this time, the side effects were way worse and extreme. I was vomiting so badly, had stomach cramps, couldn't sleep from the pain, weak, shaking, I felt like I was going to pass out. I would recommend this product to anybody."

• Ano...
• Taken for less than 1 month
• August 19, 2019

For Lactose Intolerance "Today was the first time I took one lactase pill because someone told me I might be lactose intolerant. I ended up with terrible diarrhea. I thought I was better off eating dairy, which did not give me such terrible diarrhea."

• Ash...
• Taken for less than 1 month
• September 7, 2020

For Lactose Intolerance "I've been lactose intolerant since my early 20s. I used to take lactase back then and thought it just didn't work well for me. Then one day I took some and ended up vomiting up the ice cream I ate. I figured my intolerance was just that bad, and I've avoided dairy entirely since. Recently, I ordered dairy-free dip, and my shopper accidentally grabbed the wrong one. I eat cheese with no issues and thought, maybe I'll get some lactase and try with this, so it doesn't go to waste. I took 2, ate some dip, and felt bloated and nauseous after. I thought, maybe I just need to take more next time. Horrible mistake. It's a few days later. I took 4 and ate some dip and I've been violently ill since. Vomiting, cramping, nausea, diarrhea...I've not been this sick in years. I will never touch lactase again."

• JJa...
• April 20, 2019

For Lactose Intolerance "I have lactose intolerance. I love ice cream, but it gives me diarrhea. Eating cereal in milk gives me lots of gas for about 12 hours. I tried the Kroger brand of lactase pills twice. Both times, I had incessant vomiting and diarrhea. The only reason I tried it a second time is that I thought the gastrointestinal problem must have been caused by something else. Next, I tried Lactaid while eating ice cream, thinking that another brand might produce different results. No! It was every bit as bad. Interestingly, I can drink Kroger's lactose-free milk, which contains lactase, with no symptoms. Interestingly, I can eat cheese and yogurt and not have any symptoms, which is good because I also love pizza and the convenience and nutrition of Greek yogurt. I tried Breyer's lactose-free ice cream. No vomiting, but lots of diarrhea and gas, just as though it was regular ice cream."

• Mrs...
• Taken for less than 1 month
• September 4, 2020

For Lactose Intolerance "I have NEVER had such a violent reaction to anything in my life as I had when taking these. Uncontrollable vomiting and diarrhea within 45 minutes of taking 2 tablets. Unfortunately, I was in a car and had no access to a washroom. It was terrible, to say the least. My advice, if you want to try them, is to take only one tablet before eating dairy and be in the comfort of your own home! I learned my lesson the hard way and will be trying lactose-free dairy products in the future."

• 1Fr...
• Taken for 1 to 6 months
• April 19, 2023

For Lactose Intolerance "I took a few OTC lactase enzyme tablets, and I had diarrhea and vomiting. The doctor thought it was due to food poisoning, then maybe COVID. After having had COVID, I went out at lunch, took lactase again, and was nauseated, violently vomited, and barricaded in a public restroom. My husband called an ambulance 45 minutes later because I was weak, vomiting, shaking, and couldn’t stand, and my complexion was strangely bluish. At the hospital, I shivered uncontrollably, with no temperature (I note others mentioned this symptom). After a hospital exam, including an unremarkable ultrasound of the abdomen, I was released. To diagnose the cause of vomiting, my PCP referred me to an allergist who said the sudden, eruptive vomiting and shivering had not been an allergic reaction but could have been caused by lactose intolerance. So I tried full-dose lactase again with dairy. A few hours later, acute nausea led to sudden vomiting. Concerningly, some lactase supplements have 80% negative reviews here, which may indicate either new or undisclosed side effects."

• Cee...
• Taken for less than 1 month
• July 21, 2021

For Lactose Intolerance "As sorry as I am to see so many have had severe vomiting, it's comforting to know that I'm not alone. I had a horrible experience with vomiting and the runs after taking Lactaid. That said, I don't agree with those calling for it to be taken off the market. My son uses this a couple of times a day, if not more, with no issues. His diet is heavy with dairy (for reasons that I'm not going to explain), and these pills have made it possible for him to eat. I'm glad they exist for him. I will never take another one, but they can be good for many people."

• Dyi...
• Taken for less than 1 month
• November 4, 2022

For Lactose Intolerance "After getting COVID, I noticed foods high in dairy would give me more diarrhea than usual, so my doctor suggested trying lactase. It helped a few times, and I thought all was well, until one night I was on the toilet for 3 hours. I thought it was just some unusually bad tacos, as it felt like food poisoning. The next day, same issue, I thought it was aftershocks or my milk had gone bad. About a week later, I was feeling better and took some with pizza, and it all happened AGAIN. Writing this from the bathroom. Wish I had done more research. I don't get how a simple enzyme can cause this, but I think my soul has left my body. AVOID."

• 0 S...
• Taken for less than 1 month
• September 8, 2022

For Lactose Intolerance "Violently ill each time I've tried it. Takes about 2 hours, then severe nausea kicks in. And then the projectile vomiting, along with explosive diarrhea - at the same time! Spent hours on the toilet with a puke bucket in my lap. Terrible stomach pains, chills, weakness too. Awful, awful. Trashing the rest of the box."

• Mel...
• Taken for less than 1 month
• January 9, 2022

Lactase for Lactose Intolerance "In the 20 years I’ve been with my husband, he has never vomited once. He tried Lactaid to help curb other stomach issues with dairy. Used it twice and was fine. The third time he tried them before a slice of plain quesadilla and projectile vomited all over a hotel bathroom and was ill/sore for DAYS. We thought it was food poisoning until he tried them again and same thing, needed to vomit, gas, bloating, diarrhea. Horrible, these should come with a warning."

• Ari...
• Taken for less than 1 month
• October 16, 2021

For Lactose Intolerance "Was recommended lactase tablets by a friend that seems incredibly lucky that they don't have side effects. I took one pill before having some ice cream and spent the next day with the worst stomach cramps, nausea, and diarrhea that I've ever had. It's now 6 days later, and I still have a slight stomach ache. This is awful, do not ever take these pills."

• Lac...
• August 22, 2020

For Lactose Intolerance "My fiancé is lactose intolerant and took this before a birthday party so he wouldn’t have an issue with whatever food was being served there. He has been vomiting for 4+ hours, as well as diarrhea. At first, we attributed it to alcohol, but we both ate/drank the same things, and I was fine. DO NOT take these pills! They are more hurtful than helpful!"