Omeprazole Side Effects Dogs. It is generally a safe drug to take with few important interactions with other drugs. In some cases, dogs who take the medication might suffer from diarrhea or vomiting.

Omeprazole is a very good drug. In most cases, these side effects are mild and they are unlikely to occur if you follow the proper dosage recommendations provided by your vet. An evaluation from the american journal of animal and veterinary sciences shows that adverse side effects in humans include: