India's drug regulator is investigating child deaths in Rajasthan. Several children died after consuming a "toxic" cough syrup. The Jaipur-based Kayson Pharma manufactured this syrup. Samples are now undergoing testing at a government laboratory. Rajasthan Medical Services Corporation Limited halted the syrup's supply. Two batches are under scrutiny. This follows similar incidents with India-made cough syrups in 2022.