Question:  query regarding use of anthalmintic during geststion period 
Answer: generally deworming is contraindicated during pregnency , --it may relax the uterus , or  the drug molecule  may  effect on the uterine masculature  resulting abortion . but can be given after proper investigation & parasitic load of the dam since heavy infestation of parasite in dam  lead to teratogenic affect on the developing  fetus