We had an accident recently when the house dog (8 month old pup) got out and bred with another 8 month old pup from a different litter.

5 days after the mating the vet jabbed her with Alizin twice 24 hours apart.

Vet said it will not harm her or cause problems but the next season may come slightly earlier, but will correct itself after that.

Alizin can be used up to 45 days from mating at a rate of 10mg per kg by sc injection