Typically, a matrix type and a reservoir type transdermal systems are developed
Once blood return is confirmed, the steel needle is withdrawn, leaving only a small, flexible plastic catheter taped securely in place
Passage of bile acids through the enterocyte activates FXR, which promotes the synthesis of fibroblast growth factor 19 (FGF19), which also circulates through the portal vein to the liver where it activates fibroblast growth factor-receptor 4 resulting in inhibition of bile acid synthesis
Their ability to bind selectively to receptors lets them trigger targeted effects, such as promoting anti-inflammatory pathways or stimulating tissue growth
Nausea, mild GI upset, or dizziness (especially with oral or highdose forms)