I don't think you should be supporting self medding. That's super irresponsible and someone can easily overdose their rats.
Doxycycline has a high LD50. You're WAY more likely to underdose your rat than over dose your rat.
And because finding a vet that will even see small animals AND knows what to prescribe, in the correct amounts, and for the correct duration AND is up to date on rat care AND is within driving distance AND is affordable is extremely hard and luck based.
Do you know how often in rat groups I see...
* Vets saying a rat that clearly has a URI is fine?
* Vets giving improper antibiotics?
* Vets giving the incorrect dosage?
* Vets not open on weekends and won't take emergencies?
* Vets that won't budge when given scientific evidence that they're not treating the animal properly?
* Someone who literally does not have a vet who will see a rat within 2 or more hours of them?
* Someone who cannot afford $200+ just to get some antibiotics?
So then what? Their rat dies? Like, dying is safer!? You're so against self medication that you'll let someone's rat suffocate to death over the course of weeks because you think guided self medication is worse? Because livestock owners can apparently understand how to dose antibiotics for common conditions, but rat owners and breeders are incompetent and incapable of following directions?
Nope. Of course the vet should be your first option, but barring that? I am 100% cool with self medding respiratory infections with Doxycycline.
Sorry if I sound mad, but this issue frustrates me so much that people would rather someone's rat slowly suffer and die over guided self med.