| Rarely, anaphylactoid reactions have been reported when morphine or other phenanthrene alkaloids of opium are administered intravenously. |
| Acetadote is contraindicated in patients with hypersensitivity or previous anaphylactoid reactions to acetylcysteine or any components of the preparation. |
| Whether hydromorphone-induced anaphylactoid reaction was caused by IgE-mediation or not, naloxone rapidly reversed the symptoms in our patient. |
| There were no events of anaphylaxis or anaphylactoid events in either group. |
| If anaphylactic or severe anaphylactoid reactions occur, the infusion should be discontinued immediately. |
| Anaphylactoid reaction to administration of iodinated contrast media is a well known phenomenon. |
