Broadline was a fipronil-based parasiticide which also contained (S)-methoprene, eprinomectin and praziquantel.
NexGard Combo, on the other hand, contains esafoxolaner together with eprinomectin and praziquantel for worming.
Both products are licensed for use in cats with or at risk from mixed infestations by fleas, ticks, mites cestodes, nematodes.
There's an explainer video about NexGard Combo on the Boehringer Academy website: https://www.boehringer-academy.co.uk/
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