ketamin a versatile analgesic and anesthetic. small dose 15-25mg can reduce torniquet pain and increased blood pressure associated with pain. this is surprising ! try this

yes, i always use halothane for both induction of children as well maintainnance anaesthesia. catecholamine potentiation only possible with halothane in the presence of hypoxia and hypercarbia. moreover, it is cheap, plesant smell, bronchodilator. can be used with simple vaporiser,thus economical too.