The in vivo QT Service is a component of BioMaxLabs preclinical cardiac safety assessment, a comprehensive cardiac safety assessment package for full resolution of potential cardiac risk prior to IND submission. Using rat, rabbit or dog, BioMaxLab can determine the effects of drugs on ECG in vivo, such as QT/QTc interval, QRS duration, RR interval, PR interval. Three animals will be used per concentration. Final reports of the in vivo QT service include drug effects on the study parameters including a summary of the results, description of methods used, statement of quality standard, and any amendments or deviations included as an appendix.