From Wikipedia:
Kittens are also very sensitive and ivermectin should never be used on kittens less than 10-12 weeks of age, nor should it be used on any weak, dehydrated or debilitated animal except in dire situations.
ms pasola, please learn from this very expensive mistake. Bukan semua vet cekap dan betul. Saya punyer vet akan suruh saya angkut balik umah terus kalau anak kucing saya tidak melebihi 3 bulan atau kurang sihat. Dia tak akan suntik langsung, akan suruh saya kasi makanan berkhasiat dan supplement sehingga kucing sihat betul.