Anaphylactic Shock: Drug Therapy

Therapeutic target

Stabilization of circulatory conditions

Therapy recommendation for anaphylactic shock

  • Removal of the triggering substance (if possible) and placement of an i.v. line (administration of full electrolyte solution, VEL).
  • Severity I and II * (mild to marked general reactions):
  • Severity III and IV * (severe general reactions, shock, circulatory arrest).
    • Secure airway proactively, but not generally prophylactically!
    • Generous volume therapy with VEL; caveat: do not use hydroxyethyl starch (HES); is nephrotoxic (“damaging to the kidney“).
    • Epinephrine (first-line agent)
      • Patient not requiring resuscitation: i.m. Administration (if necessary, repeat after five to ten minutes).
      • In severe or impending shock: Adreanaline administration diluted intravenously under pulse and blood pressure control:
        • Non-resuscitated patient: i.m. application of epinephrine (0.01 mg/kg bw = 0.01 ml/kg bw of 1:1000 solution) into the outer thigh; in the absence of onset of action, i.m. application may be repeated every 5-10 min, depending on the side effects
        • Impending cardiovascular failure: i. v. continuous infusion (0.01 to a maximum of 1 µg/kg bw min titration after effect)
        • Cardiovascular arrest: i.v. administration during resuscitation (0.01 mg/kg bw 1: 10,000 solution (epinephrine diluted 1:10) → 0.1 ml/kg bw epinephrine 1: 10,000 (epinephrine diluted 1:10)).
    • Glucocorticoids: 500-1,000 mg prednisolone, i.v. (especially in severe bronchospasm or delayed progressive symptoms).
    • If necessary, antihistamines and theophylline supplemental.
    • Oxygen administration and generous indication of mechanical ventilation.
    • If cardiopulmonary resuscitation is required: cardiac compressive massage and ventilation in a 30:2 ratio; apply an automatic defibrillator so that defibrillation can be performed in the event of ventricular fibrillation
  • Prompt allergological diagnostics

* Severity scale for classification of anaphylactic reactions (see classification below).