cimetidine (used to treat peptic ulcers)
probenecid (used to treat gout)
raloxifen
medicines that suppress your immune system (e.g. mycophenolate mofetil; ciclosporin; tacrolimus; methotrexate)
theophylline and aminophylline (used in asthma and other breathing problems)
zidovudine (used in HIV infection)
any medicine which affects the kidneys, including aminoglycosides, organoplatinum compounds, iodinated contrast media, pentamidine, foscarnet