Several SLC22A1 SNPs have functional consequences and have
been associated with altered disposition and response for drugs such as metformin, imatinib, tropisetron, ondanesetron, morphine and
tramadol. As a result, SLC22A1 is considered as an important pharmacogene.
For more information on this VIP gene and its important variants see the VIP tab for SLC22A1.
For all VIP gene summaries on pharmgkb, see here.