 [ Symptoms ] my wife is 27 weeks pregnant and accidently took our dogs medicine of cephalexin 1 pill 500mg what do we do [ Disease ] these symptoms almost referring to gastritis with or without gerd i recommend just taking the following ganaton50mg before meals 3times and zantac 300mg after dinner if you can not see a gi doctor… then in the nearest possible chance see a gi specialist avoid caffeine and citrus food tomato sauce based foods and increase your fiber intake as well as eating small meals every 3hours