Wyatt Earp speaking of Doc Holliday. Doc Holliday's father, Henry B. Holliday was a trained pharmacist who served in several wars, including the Cherokee Indian War, the Mexican War, and as a Major in the Confederate Army.
Dogs frequently eat grass to ease stomach discomfort. If your dog's stomach is empty, the grass may cause your dog's stomach to produce more digestive enzymes, and this can result in vomiting bile. Unless your grass is treated with fertilizer or pesticides, it's generally safe to allow your dog to continue eating it, as it can help ease her stomach problems.
Vomiting in Dogs and Cats. Dog and cat vomiting can be caused by problems from within the stomach and intestines (called the gastrointestinal or GI tract) and by problems from outside the GI tract, such as kidney disease. Common causes of a dog or cat vomiting are allergies, illness, cancer, infections, drugs, parasites, plants, and poisons. Vomiting is also caused by incidents of overeating, foreign bodies, bloat (GDV or gastric dilatation volvulus), and constipation. When your dog or cat vomits, he or she is ejecting food from the mouth that has been in the stomach.