BACKGROUND: Pain and irritability of unknown origin (PIUO) is a challenging problem for nonverbal children with severe neurological impairments. PIUO is not associated with an identifiable source of nociceptive-inflammatory or neuropathic pain.…
OBJECTIVE: To evaluate the effectiveness of tramadol hydrochloride for the treatment of chronic pain refractory to previous treatment in two pediatric patients. METHODS: Tramadol hydrochloride was administered (50 mg/day to 150 mg/day) to two…