title: I've taken methotrexate for several months to control my rheumatoid arthritis, but the bouts of upset stomach have become too much. I read that folic acid can counteract the side effects of methotrexate. Can you tell me more about it?
mesh_terms: D018501:Antirheumatic Agents / Q000009:adverse effects* / Q000037:antagonists & inhibitors; D001172:Arthritis, Rheumatoid / Q000188:drug therapy; D005492:Folic Acid / Q000627:therapeutic use*; D006801:Humans; D008727:Methotrexate / Q000009:adverse effects* / Q000037:antagonists & inhibitors; D013272:Stomach Diseases / Q000139:chemically induced
chemical_list: D018501:Antirheumatic Agents; D005492:Folic Acid; D008727:Methotrexate