VELSIPITY is believed to work by helping prevent some immune cells from leaving lymph nodes.
VELSIPITY is an sphingosine-1-phosphate (S1P) receptor modulator. It's not known how VELSIPITY works in ulcerative colitis but it is believed to involve a decrease in some immune cells reaching the colon.
VELSIPITY binds to S1P receptors, decreasing the movement of lymphocytes (immune cells) from lymph nodes into the bloodstream.
It is thought that this helps decrease ulcerative colitis inflammation by lowering the amount of immune cells in the bloodstream that travel to the colon.
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*5-ASAs are 5-aminosalicylic acid derivatives.