
Front line says it can be used on pregnant bitches, but our experiecne has shown otherwise, as shortly after it first came out we used it on 2 in whelp bitches, first was scanned for 3 pups, sitting next to a very flea infested lurcher in vets while waiting for scan, so treated her when got home "for safety" - only 1 pup born, another bitch, with my partner, was definetly in whelp at 5-6 weeks, was frontlined, and produced no pups, and a third bitch we know was treated at a similar time, and her previously scanned litter also all "vanished". We never heard back from the naufactureeres, avfter receving standard "we note your comments" type letters.
bye
Gwen