Leflunomide, azathioprine and sulphasalazine omeprazole medicine used to stop the production of stomach acid diuretics water tablets medicines taken for diabetes including insulin and tablets antibiotics such as penicillins, sulphonamides, co-trimoxazole, trimethoprim, tetracycline, chloramphenicol and para-aminobenzoic acid phenytoin medicine often used to treat epilepsy vitamin supplements containing folic acid probenecid medicine used to treat gout nitrous oxide used for general anaesthesia and pain relief retinoids, such as acitretin a medicine used to treat psoriasis or isotretinoin used to treat severe acne diphenylhydantoins e.
