The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. Nausea. Some people suffer from gastritis, gastric ulcer, which can affect the digestive function, and also show nausea after taking collagen tablets, should stop taking the drug, first to treat the disease, and then take it after the condition improves.