Caffeine will lower the level or impact of iobenguane I 131 by Other (see remark). Prevent or Use Alternate Drug. Depending on the system of action of iobenguane, medicine that decrease catecholamine uptake or that deplete catecholamine merchants may interfere with iobenguane uptake into cells, and so, reduce iobenguane efficacy. https://davidp482sdo0.bloggazza.com/profile