Rotteundersøgelser indikerer at optagelsen i hjernevæv er begrænset, distributionen ind og ud af det lymfatiske system er hurtig og ekskretionen i mælk fra diegivende rotter er ekstensiv.
23 Studies in rats indicated that uptake into brain tissue was limited, distribution into and out of the lymphatic system was rapid, and excretion into the milk of lactating rats was extensive.