You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Which of the following inducing agent produces cardiac stability? and explain in detail?
Etomidate 
It is another induction anaesthetic (0.2- 0.5 mg/kg) which has a briefer duration of action  (4-8 min).
than thiopentone; produces little cardiovascular and respiratory depression, but motor restlessness and rigidity is more prominent as are pain on injection or nausea and vomiting on recovery. It is a poor analgesic and has not found much favour ,except for patients with compromised cardiovascular status. 
Reference: Essentials of Medical Pharmacology Eighth Edition KD  TRIPATHI  page no 410