RT Journal Article SR Electronic T1 Difficulties in diagnosing neuroleptic malignant syndrome JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 234 OP 236 VO 23 IS 2 A1 Monica S. Zolezzi A1 Abdullah M. Al-Hathloul YR 2002 UL http://smj.org.sa/content/23/2/234.abstract AB This report describes a recent case of neuroleptic malignant syndrome, a rare adverse effect of antipsychotic medications. Assessment of the neuroleptic malignant syndrome was carried out by using the Naranjo Algorithm Probability Scale which resulted in a highly probable reaction to haloperidol. The difficulties in establishing the diagnosis in this patient lead to late intervention resulting in a slow recovery and prolonged hospitalization. Our objective in this presentation is to highlight the importance of early recognition of this potentially fatal adverse drug reaction.