Question about spot-on flea treatment.

[Catfan5]

My two new cats who are nearly 7yo were apparently given frontline on 1/4. Would it be safe to give them Advocate now or should I wait another week in case.. They have been scratching but they won't let me have a look in their fur yet, both are long haired. If any one can advise I would appreciate it.

[MarkB]

I think a 3 week gap is fine - it is closer to 4 anyway and there must be a good safety margin. It is a different chemical anyway

[elastu]

I would suggest you ring your vet for advice when to apply another treatment, mixing different brands can be dangerous as indeed would be to apply the same treatment too soon.

[Catfan5]

Sorry for the belated reply but thanks for your responses MarkB and Elastu. I decided to wait just to be on the safe side