My 12 year old son had a lactose intolerance and because he loved dairy - especially skim milk, mac and cheese, ice cream - we decided to help him with the intolerance side effects of diarrhea, cramps, gas - and try the store brand of lactaid. The ingredients were identical to the brand name. the pills & worked great for about 3 weeks. This past week, he had horrible stomach pains, diarrhea again and nausea, so bad he had to miss school. He had an appetite, no fever, but was assaulted with the side effects from taking the lactaid pills. I thought I was helping him, yet only the reverse! I am grateful to have come across this web site and shared blogs. Now I know how to solve my son's problems that caused so much suffering. In addition to the stomach pains, diarrhea & nausea, he also complained of bad headaches. As a mom, my instincts are correct and I attribute all of this to taking the lactaid pills. Thankfully, my son will not have to endure the horrible episodes anymore. Lactaid pills are banned from our home!