Hello and thanks for researching this very important question! High blood pressure medications can have dangerous side effects in pets that overdose (take pills not prescribed for a medical problem. You can induce vomit by following the instructions at this site: http://www.dog-first-aid-101.com/induce-vomiting.html. Call your veterinarian or emergency service right away if your pet displays any signs of tiredness or weakness. Let me know if you have other questions about this.