In vitro - undersøgelser har vist, at laropiprants acylglucuronidkonjugat havde mindst 65 gange reduceret affinitet til DP1 i sammenligning med laropiprant; dette forventes derfor ikke at bidrage til laropiprants totale DP1- aktivitet.
In vitro studies have shown that the acyl glucuronide conjugate of laropiprant had at least a 65-fold reduced affinity for DP1 as compared to laropiprant; thus, it is not expected to contribute to the overall DP1 activity of laropiprant.