Fancy Mouse and Tetracycline Antibiotics?

So I had a ca. 9 month old fancy mouse who started with an irriteted eye around 2 weeks ago. She was otherwise fine and healthy and had a weight of 32gram. She got eye drops twice a day for 10 days, but that didn’t help much.
So last Thursday (two days ago) I visited the vet again and she got tetracycline s.c. and I got some of it home, to inject it to her every two days additional to her eye drops.
So when I wanted to give it to her today, I found her outside of her hiding places cold and apathic. She rarely made trembling, seemingly non controlled movements with her head and paws, but couldn’t walk or rob. She didn’t really react when I took her in my hands. I rushed to the vet where she got fluids and vitamins (B12). Her weight was still fine and she was only a little dehydrated. I kept her warm and should keep her hydrated and try to feed her. She still died around 2 hours later, but she was her hiding spot, together with the other mice she lived with.
Is it possible that it was an reaction to the Tetracycline, that she maybe couldn’t metabolize it or something? It just came so suddenly without warning. Thanks for reading.