The Pathway Ontology (PW), is currently being developed at the Rat Genome Database. For more information about this vocabulary, please see Petri et al. The rat genome database pathway portal. Database (Oxford). 2011 Apr 8;2011:bar010. Print 2011 or contact us (https://rgd.mcw.edu/rgdweb/contact/contactus.html).
The pathway of processing - absorption, distribution, metabolism or elimination - of metformin, an anti-diabetic drug used in the treatment of type 2 diabetes mellitus. Metformin is widely distributed in various tissues. Meformin is excreted unchanged and several transporters are involved in its tissue uptake and elimination. Genetic variations can result in changes in the availability of the drug.