A pharmaceutical company has resumed supplying leukemia medicine for children after a severe shortage triggered widespread panic among the families of patients.

Premier Li Keqiang urged all involved parties on Monday to take swift action to ensure availability.

"The lack of medicine will make it tougher for families whose children have leukemia," he was quoted as saying on the State Council's website. "We should stand in their shoes, attach great importance to the problem and take effective steps in this special case to ensure the supply of the low-priced domestic medicine, so as to lessen the pain of those families."