- And got the T-shirt
500 mg is WAY too much for a guinea pig. They normally need about 35-50 mg. per day from all sources.
What meds is he on? Has your vet recommended nebulizing a stronger antibiotic so it will get down in the lungs?
This is a method of getting antibiotics into the lungs in a mist. The guinea pig is put into an enclosed container and the drug put into the air the guinea pig breathes.