So your suspension is 30mg/ml The dose for Scruffy was 0.4cc. The dose for Grady is 0.5cc. So Grady is getting more than Scruffy got but this may be adjusted by weights. Go find the weights of each guinea pig and you will be able to calculate the dosage.
The dosage will be how many mg is given for each kilo of weight. I can't tell you what the dosage should be for Orbax.
Grady isn't getting more than Scruffy got. He's getting 0.5 ml once a day. Scruffy's dose was 0.4 twice a day, or 0.8 combined daily dose. Then again, Scruffy's infection was much further along and far more serious. It was progressed enough for the infected area of his bowels to bleed. His onset was on a Saturday too, so he had to wait for two days to see a vet bleeding like that and not eating. He was lucky to have made it through that weekend, to say nothing of making a full recovery and living another year. Looking back and remembering that ordeal makes me appreciate his resilience and the extra year I got with him even more.
Poor little Grady Bug. He just hates getting his medication. I give him extra lap time and cuddles to make up for having to force that syringe into his mouth. He's such a lively little guy despite the runny nose. So far (knock on wood) his appetite hasn't changed. If anything, it's increased some. Day 4 of 14 is in the books and his eye seems to have mostly cleared up, but his runny nose hasn't shown much improvement yet. He does like sitting with me though. I always worry that my guinea pigs will associate getting picked up and held with getting the syringe, so when any of them have to go on meds, I make sure to give them extra attention. So far it's working because Grady doesn't run away from me when I go to get him out.
Believe it or not, this guinea pig is not Skipper. It's actually Wilber. He's got almost the same markings as Skipper. He's also got long hair in nearly the same places as Skipper does. Its almost like they're twins. How cool is that? He chows on grass every bit as much as any of the other piggies do.
Sure, they comfort each other and play together, but cleaning each other on a personal level like that is something I never thought I'd see. I'm not sure if Grady's eye fluid is bad for Wilber to be licking, but it was actually cute to see him taking care of his brother like that.
I bet those little tongues can do at least a little massaging!
[NOTE: Sorry for the below but I wanted to add it to the forum in so it might be searchable for eye information - I might move it later.]
I was looking around to see if I could find any kind of illustration of the nasolacrimal duct. At the moment, all I can find is one for a dog in the Merck manual (see illustrations, first one):
https://www.msdvetmanual.com/eye-diseases-and-disorders/opht ... al-apparatus
And an article on how important lacrimal fluid is to the health of the eye. This gets very technical but the summary is informative.The tear production and drainage system is vital for health of the outer eye. Tear glands within the orbit (lacrimal and in some species Harder gland) as well as the superficial tear gland of the nictitating membrane (third eyelid) produce the collective preocular or precorneal tear film. This film consists of three layers: outer lipid (from the Meibomian glands), middle aqueous layer (from lacrimal and third eyelid glands), and deep layer (mucus) from the goblet cells within the conjunctiva.
The tear drainage system consists of two lacrimal puncta (except in the rabbit and pig, which have only one punctum), two canaliculi, the lacrimal sac (within the bony lacrimal fossa), and the long and often tortuous lacrimal duct (to empty tears within the forward nasal cavity).
And a very accessible article on the lacrimal system in a human:
Perhaps not helpful for locating the duct but interesting nonetheless is this article, which touches on several species and regrets the lack of information on guinea pigs:
This 2009 post on a UK forum notes that, "There is a test the vet can do to determine if the tear ducts are actually blocked - it involves putting fluorescene dye in the eye and monitoring it's appearance down the nostrils and in the throat"
https://www.theguineapigforum.co.uk/threads/how-do-you-flush ... post-1329809
[Edit] Here you go:
Renonvsparky, if you'd like me to remove this from your topic, I'd be happy to do so. I get sidetracked sometimes when medical issues show up.