EpiPen 2-Pak 0.3 mg/0.3 mL Prescription Instructions
Inject 0.3 mL (0.3 mg) intramuscularly into the mid-outer thigh at the first sign of anaphylaxis; may repeat once after 5-15 minutes if symptoms persist or recur; always carry 2 auto-injectors; seek emergency care immediately after use; no expiration on duration—replace when expired or used.
Sig (Prescription Directions)
"Inject 0.3 mL into outer thigh muscle at first sign of severe allergic reaction. May repeat once after 5-15 minutes if needed. Call 911 immediately after first dose. Always carry both auto-injectors."
Duration
- No time-limited duration: Prescribe for ongoing use as long as the patient remains at risk for anaphylaxis 1
- Replace immediately after use or when solution becomes discolored (pinkish/brown) or cloudy 1
- Storage: Room temperature 68-77°F; protect from light in carrier tube provided 1
Critical Prescribing Details
Dosing Specifications
- 0.3 mg dose is appropriate for patients weighing >30 kg (approximately >66 lbs) 2
- The recommended dose is 0.01 mg/kg (maximum 0.3-0.5 mg in adults, 0.3 mg in children) 3
- Always prescribe 2-Pak (two auto-injectors): 6-19% of pediatric patients require a second dose 2, and one device may be accidentally activated 1
Administration Instructions to Emphasize
- Inject into anterolateral mid-thigh (outer thigh muscle)—this is the first-line route 3, 2
- Can inject through clothing if necessary
- Hold firmly in place for 3 seconds after activation
- Second dose timing: Give 5-15 minutes after first dose if symptoms continue, worsen, or return 2, 1
When to Use (Patient Counseling Points)
Anaphylaxis symptoms requiring immediate injection include 2:
- Respiratory: Difficulty breathing, wheezing, throat tightness, hoarseness
- Cardiovascular: Dizziness, weak pulse, chest pain, collapse
- Skin: Hives, severe itching, swelling of face/lips/tongue
- GI: Persistent vomiting, severe cramping, diarrhea
- Do not delay—inject at first sign of anaphylaxis, even if uncertain 3
Emergency Response Protocol
- Inject epinephrine first, then call 911 2, 1
- Position patient: Lying down with legs elevated (unless respiratory distress/vomiting) 2
- Never allow standing or walking after injection 2
- Transport to emergency department even after epinephrine use—observation required for potential biphasic reactions 3
Common Pitfalls to Avoid
Underprescribing: Always prescribe the 2-Pak, not single units—patients need backup for repeat dosing or accidental activation 1
Delayed use: Emphasize immediate injection at symptom onset—fatal anaphylaxis correlates with delayed epinephrine administration 3
Wrong injection site: Subcutaneous or other routes are inferior; intramuscular thigh injection is essential 3
Expired devices: Patients must check expiration dates regularly and replace promptly 1
Single location storage: Counsel patients to keep auto-injectors at multiple locations (home, school, work) if needed 1
Safety Considerations
- No absolute contraindications to epinephrine in anaphylaxis 3, 2
- Expected pharmacologic effects (pallor, tremor, anxiety, palpitations) are transient and acceptable given life-threatening nature of anaphylaxis 2
- Serious adverse effects are rare in appropriate dosing 2