I've got 6 mth old pup and he's had variations on the above, the vet nurse seemed quite confused about what does what when I asked her so I thought I'd come on here for advice. With my previous dog we just used to give her frontline and drontal every 3 mths which stopped her getting fleas (cats sometimes come into our garden and would rather pay for frontline and prevent infestation than get fleas) My pup has been wormed monthly until now but I understand I can leave longer gaps now he's older (although he does have a tendancy to eat sheep poo!) He's just had a dose of Frontline and Drontal but I'm just trying to think what would be the best treatment for the longterm or is it best to vary things?