WHAT DOES TL8-506 MEAN?

At an oral dose of 2000 mg/kg/day in rats, maternal toxicity and deaths ended up witnessed with an elevated incidence of early fetal resorption; spontaneous abortions occurred in cynomolgus monkeys with the maternally toxic oral dose of 2000 mg/kg/day; there isn't any enough and well-controlled trials in pregnant Gals; simply because animal copy st