Has anyone out there suffered from stomach problems after taking malaria tablets? I took Lariam the first time round in Kenya and developed some stomach problems whilst out there which were treated and resolved. The second time round I was on Chloroquine. Towards the end of the exercise I developed stomach problems once more, which ended in hospitlisation in Haslar. I was diagnosed with Crohns. Lariam and Chloroquine side effects include gastrointestinal problems. Any other horror stories like this?