Ved en koncentration på 0, 4 mg/ kg/ dag, hvor oxybutynin indgives subkutant, er forekomsten af organanomalier signifikant forøget, men observeres dog kun ved forekomst af maternal toksicitet.
At a concentration of 0.4 mg/ kg/ day oxybutynin administered subcutaneously, the occurrence of organ anomalies is significantly increased, but is observed only in the presence of maternal toxicity.