Drugs to add for bee sting admitted patient

Reading File

Finding Sources

Reading File

Here is a full drug management guide for an admitted bee sting patient, stratified by reaction severity:

Drugs for Admitted Bee Sting Patient

1. FIRST-LINE - Anaphylaxis / Systemic Reaction

Drug	Dose/Route	Notes
Epinephrine (Adrenaline)	0.3 mg IM (1:1000, i.e. 1 mg/mL) into anterolateral thigh	Drug of choice - repeat every 20-30 min as needed
IV Epinephrine	Titrated infusion	Use when anaphylaxis is refractory to IM epinephrine or when shock is present

Epinephrine is the drug of choice to reverse the manifestations of serious acute hypersensitivity reactions from bee stings. - Goodman & Gilman's Pharmacological Basis of Therapeutics

2. ADJUNCT DRUGS (give after/alongside epinephrine)

Antihistamines

Drug	Indication
H1 blocker (e.g., diphenhydramine 25-50 mg IV/IM, or cetirizine/loratadine orally)	Urticaria, pruritus, flushing
H2 blocker (e.g., ranitidine or famotidine IV)	Additional histamine blockade in systemic reactions

Patients with systemic reactions can be treated with H1 and H2 blockers in addition to epinephrine. - Rosen's Emergency Medicine

Bronchodilators

Drug	Indication
Salbutamol (Albuterol) nebulized	Bronchospasm - give when wheeze/dyspnea present
Ipratropium (add-on)	Refractory bronchospasm

Corticosteroids

Drug	Dose
Methylprednisolone 1-2 mg/kg IV or Hydrocortisone 200 mg IV	Given for systemic reactions

Note: Glucocorticoids do NOT address initial symptoms of anaphylaxis and do NOT reliably prevent biphasic reactions. Their routine use is no longer strongly recommended but they are still widely administered. - Rosen's Emergency Medicine

3. HEMODYNAMIC SUPPORT (if hypotension/shock)

Drug	Notes
IV Normal Saline / Ringer's Lactate	Rapid 1-2 L bolus for anaphylactic shock
Vasopressors (dopamine, norepinephrine)	If hypotension persists despite epinephrine + fluids

4. LOCAL / SYMPTOMATIC REACTIONS (large local reactions)

Drug	Notes
Oral antihistamine (cetirizine/loratadine)	Pruritus, local swelling
NSAIDs (ibuprofen/naproxen)	Pain and local inflammation
Short steroid taper (prednisolone oral)	Large local reactions with significant swelling
Analgesics (paracetamol/opioids)	Pain control
Topical calamine lotion	Local itch relief

5. MONITORING (not drugs, but critical orders)

Observe for at least 24 hours for:
- Biphasic anaphylaxis (recurrence 4-12 hours later)
- Renal failure (especially with massive envenomation)
- Coagulopathy (in cases of multiple stings)

Summary Algorithm

Bee sting admitted patient
        |
   Assess severity
   /              \
Local reaction    Systemic / Anaphylaxis
    |                    |
  Ice packs          EPINEPHRINE IM (0.3 mg) ← FIRST
  NSAIDs             + H1/H2 antihistamines
  Antihistamines     + IV fluids (if hypotensive)
  ± Steroid taper    + Bronchodilators (if wheeze)
                     + Steroids (adjunct)
                     + Vasopressors (if refractory shock)
                     + IV Epinephrine (if refractory)

Sources: Harrison's Principles of Internal Medicine 22E (2025), Rosen's Emergency Medicine, Goodman & Gilman's Pharmacological Basis of Therapeutics

This is a shared conversation. Sign in to Orris to start your own chat.