21. Various combinations of acupuncture points can be selected to induce electropuncture analgesia in animals. 22. Patients with chronic ( rather than acute ) pain may respond to analgesia differently. 23. This procedure is quite painful and requires good analgesia in the days following surgery. 24. The most common omissions are inhalers and analgesia . 25. Analgesia should be provided in all cases.26. It induces a variety of effects, including analgesia , hypothermia and increased locomotor activity. 27. Hydroxypethidine has similar effects to other opioids, and produces analgesia , sedation and euphoria. 28. Prodine has similar effects to other opioids, and produces analgesia , sedation and euphoria. 29. Meprodine has similar effects to other opioids, and produces analgesia , sedation and euphoria. 30. Piminodine has similar effects to other opioids, and produces analgesia , sedation and euphoria.