Another ferret owner asked me that question and rather than just reply to her, I thought I’d put the answer up as a post.

To be honest it’s difficult for me to say categorically that yes, it does work.  I got it when Muis was diagnosed with insulinoma and I gave it to her every day.  One thing I can say with certainty is that it seemed to help her because she used to wander around the house quite happily, she’d come and see me in the study when I was working and always wanted to be lifted up onto my lap, and if we went out, she’d be at the front door to welcome us home when we came back.

I hadn’t realised that the bottle contained capsules – I thought they were pills which I’d have to crush but this was easier.

According to that site I found with the dosage instructions, Muis needs to have 1/4 capsule per day

Transfer Factor Advanced Formula Plus — Small Animals 1-40 lb. One quarter to one capsule daily

but I was also mindful of the instruction on the same site

Note: Some veterinarians start animals on a small amount of Transfer Factor Plus for 3 consecutive days to make sure to not overwhelm the immune system, and increase the dose gradually.

It came on Friday and I started her on it immediately.

The instructions said to give it to her twice a day, which I did, but after a couple of days I heard her retching and trying to throw up so I thought I’d stop the evening dose.

I emailed Kamila and asked her advice and she agreed with what I did, saying that the formula was fairly strong and if I was also giving Muis her melatonin tablet every day, it would be fine to just give her the TCM once a day.