What is ARG:
Disorder which requires medical treatment; In some cases, gastritis can be extremely severe and cause associated secondary health conditions; so it is imperative that any onset of gastritis be treated promptly

It is important to understand that gastritis can quickly turn into a life-threatening condition for dogs when left untreated

Most cases are mild and only require minimal antibiotic treatment, the threat of ulcers and stomach cancer is real; so dog owners need to be aware of the signs and symptoms of gastritis in dogs, which can include:

  1. Persistent vomiting with or without blood
  2. Excessive diarrhea which may be black
  3. Sudden weight loss
  4. Decreased appetite
  5. Weakness and fatigue

ARG treatments range from triple to quadruple therapy:

  1. Amoxi, metronidazole, carafate +/- bismuth
  2. Clarithromycin (if you can get it) and amoxi, carafate +/- bismuth
  3. Metronidazole, Tetracycline, Doxycycline, Tylosin, Azithromycin

These are all antibiotics with or without weak anti-inflammatory effects

These drugs may be used alone or in conjunction with other more potent anti-inflammatory drugs

These antibiotics may modulate or alter bacterial populations within the intestine and may allow a lower dose of the other anti-inflammatory medications to be used

They may be used alone in animals suspected to have bacterial overgrowth or so called antibiotic responsive gastroenterocolitis

Further help:
See H.pylori gastritis