Essential Medications for Paramedics
Paramedics should have readily available epinephrine, naloxone, aspirin, glucose (D-50), albuterol, nitroglycerin, amiodarone, and sodium bicarbonate as core emergency medications, with additional antidotes and specialized agents based on local hazard vulnerability assessment.
Core Resuscitation Medications
Cardiac Arrest Management
The most critical medications for cardiac arrest include 1:
- Epinephrine 1 mg IV/IO: Administer every 3-5 minutes during cardiac arrest. This is the cornerstone vasoactive medication for both shockable (VF/pVT) and non-shockable rhythms 2, 1
- Amiodarone 300 mg IV/IO (first dose) or Lidocaine 1-1.5 mg/kg IV/IO: For shock-refractory VF/pVT 2, 1
- Sodium bicarbonate 50-150 mEq: Reserved for special circumstances including sodium channel blocker toxicity and hyperkalemia—not for routine use 2, 1
Critical pitfall: Calcium and sodium bicarbonate should NOT be routinely administered during cardiac arrest except for specific toxicologic emergencies 2.
Opioid Overdose
- Naloxone 0.2-2 mg IV/IO/IM or 2-4 mg intranasal: Titrate to reversal of respiratory depression, not full consciousness 3
- Repeat every 2-3 minutes as needed
- All paramedic levels should have access to naloxone given the opioid epidemic 4
Acute Coronary Syndrome
- Aspirin 162-325 mg (chewed, non-enteric coated): Should be administered by all EMS providers for suspected STEMI unless contraindicated 5
- Nitroglycerin tablets: For chest pain relief 6, 7
- Morphine 4-8 mg IV with additional 2 mg doses every 5 minutes for pain relief 6
Respiratory Emergencies
- Albuterol nebulizer: One of the most frequently used prehospital medications, accounting for significant pharmacotherapeutic interventions 7
- Oxygen 2-4 L/min: Especially for breathlessness, heart failure, or shock 6
Metabolic Emergencies
- Dextrose 50% (D-50): For hypoglycemia—one of the three most commonly used prehospital medications 7
- Glucometer must be readily available for assessment 8
Toxicologic Antidotes
Based on the 2023 AHA Focused Update on Poisoning 3, paramedics should have access to:
High-Priority Antidotes (Immediate Availability)
- Atropine 0.5-1.0 mg: For β-blockers, calcium channel blockers, digoxin, organophosphates 3
- Calcium chloride 2000 mg or calcium gluconate 6000 mg: For calcium channel blocker toxicity 3
- Glucagon 2-10 mg: For β-blocker and calcium channel blocker toxicity 3
- Sodium bicarbonate: For sodium channel blocker toxicity (TCAs, cocaine) 1, 3
Specialized Antidotes (Based on Local Hazards)
- Hydroxocobalamin 5 g: For cyanide exposure—most commonly available hazmat-specific antidote 9
- Pralidoxime 1-2 g: For organophosphate poisoning 3
- Flumazenil 0.2 mg titrated to 1 mg: For pure benzodiazepine overdose ONLY—contraindicated in mixed overdoses, seizure disorders, or chronic benzodiazepine use due to risk of seizures and dysrhythmias 3
Critical warning: Flumazenil has NO role in cardiac arrest and can cause harm in patients at risk for seizures 3.
Anaphylaxis Management
For suspected anaphylactic reactions 10:
- Adrenaline (epinephrine) 50 μg IV (0.5 mL of 1:10,000) for adults, with repeated doses as needed
- Chlorphenamine 10 mg IV
- Hydrocortisone 200 mg IV
- Saline 0.9% or lactated Ringer's solution at high infusion rates
Equipment and Delivery Systems
Vascular Access 8
- IV/IO access supplies in sizes for neonates to adults
- Isotonic crystalloid fluids with adjustable delivery rate tubing
- Pressure infusion devices
Airway and Monitoring 8
- Continuous waveform capnography
- Pulse oximeter with sensors for all ages
- Blood pressure cuffs (neonatal to adult sizes)
- Automated external defibrillator with adult and pediatric pads
Hazard Vulnerability Assessment
Each EMS system must perform a formal hazard vulnerability assessment to determine specific antidote needs based on local industrial exposures, agricultural chemicals, and regional toxicologic risks 11, 9. This assessment should guide stocking of specialized antidotes beyond the core medications listed above.
Common Gaps in Availability
Research shows that paramedics with advanced hazmat training report limited availability of specialized antidotes 9. Only 35.6% carry dedicated toxicology medication kits, and even among those with advanced training, hydroxocobalamin availability is only 39.9%.
Pediatric Considerations
All medications should be available in weight-based dosing for pediatric patients 2, 3. Tools that provide precalculated weight-based dosing reduce medication errors and should be standard equipment 8.
For pediatric cardiac arrest specifically 2:
- Epinephrine dosing intervals of ≤3 minutes associated with better outcomes
- Ventilation rates of 20-30 breaths/min appropriate (higher than adult rates)
- Amiodarone or lidocaine may be considered for shock-refractory VF/pVT