Welcome! My name is***** am a UC Davis graduate, and currently, a Medical Director of a veterinary hospital.
I am sorry to hear about this concern for her.
At this age, and for you to describe her as now having difficulty standing is a veterinary emergency. Even if I recommend an antacid below to help settle her stomach
, her current condition could be life-threatening. How?
Well, she could be developing stomach bloat or stomach torsion (when the stomach twists). Also, there is a very real concern for pancreatitis
, which can also be quite painful and more serious then just having gastritis.
So, my first and really only recommendation is to get a family member or friend to help get her to a ER vet.
Please keep in mind, any antacids I suggest below is by no means sufficient therapy for her condition. She needs an ER vet.
To help settle the stomach you can use of the following, but not as a replacement for veterinary examination include
1.Pepcid A.C. (famotidine
) comes in 10mg, 20mg, or 40mg tablets.
You can give it every 12 hours. You can give 0.5mg per pound of body weight. So, a 20 pound dog would get 10mg.
2.Prilosec (omeprazole). It comes in 10mg or 20mg tablets.
You can give in every 24 hours. You give 0.5mg per pound of body weight. So, a 20 pound dog would get 10mg
3.Zantac (Ranitidne). It comes in 75mg, 150mg, or 300mg sizes.
You can give it every 8 to 12 hours. You give 0.25 to 1mg per pound of body weight. So, a 20 pound dog would get roughly 1/3 tablet of the 75mg. Even with bigger pets, it is easiest to get the smallest size tablet. Even a 75 pound dog would only need one 75mg tablet.
4.Pepto-Bismol or Kaopectate
You can give it every 8 hours. The average dose is 1ml per pound of body weight, and that is the TOTAL dose for the day.So, if a pet weighs 30 pounds, they would get a total of 30ml a day or 10ml every 8 hours. This is dosing for regular strength Pepto-Bismol. If you use maximum strength liquid, give half as much.
I would not try to offer food for at least 12 hours, and don't bother with water for at least another 4+ hours or as directed by a veterinarian.
Remember! I cannot examine her, and therefore, please do not take my suggestion to give an antacid as a replacement for veterinary care because I am worried about her. I wish I could do more. Good Luck!