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Frontline used to be great - is it weaker now or are the fleas ...
on 30 July 2017
Very disappointing. It didn't kill the fleas, made them a bit slow so I managed to catch and kill several. It also didn't interfere with their fertility, the cat was covered in eggs and I got a house infestation which has taken me loads of time and money to deal with. Frontline used to be great - is it weaker now or are the fleas more robust?