Emergency Drug Calculator
Use our free Emergency Drug Calculator to quickly estimate weight-based emergency drug doses (mg) and convert them to volume (mL) using drug concentration. Ideal for clinicians, EMS, and advanced first-responders — always confirm with local ACLS/PALS protocols and pharmacy.
Emergency Drug Dosing Formula
These formulas convert weight-based mg/kg rules into absolute mg and then into mL using the vial/syringe concentration. Always confirm concentration labeling (e.g., 1:10,000 epinephrine = 0.1 mg/mL; 1 mg/10 mL) before drawing medication.
How this Emergency Drug Calculator works
The calculator applies guideline dosing rules (e.g., ACLS for adults, PALS for children, NHS naloxone guidance) to compute a recommended mg dose from patient weight and selected indication. It then converts mg to mL using the selected concentration. For some drugs (e.g., epinephrine) guideline doses differ by scenario (anaphylaxis vs cardiac arrest vs EpiPen dosing), so the calculator chooses the rule based on the selected scenario. Always cross-check with the actual published protocol and pharmacy labeling.
When to use this Emergency Drug Calculator
For quick bedside conversion of weight-based emergency doses into mg and mL.
When preparing pediatric emergency drug syringes during resuscitation.
For EMS / first responders to confirm dose volumes given available vial concentrations.
To standardize prefilled syringe labeling in code carts (then validate with pharmacy).
As an educational tool in simulation and training (always verify live clinical care with protocols).
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Typical Emergency-Dose Ranges (Guideline examples)
Below are common guideline ranges for selected emergency drugs. Use them as starting points — local protocols may differ.
Epinephrine (cardiac arrest) — Adult
Epinephrine (pediatric arrest)
Amiodarone
Naloxone
These benchmarks are widely used starting points; always follow your local ACLS/PALS/NHS protocols and consult pharmacy or clinical leadership for final dosing and preparation.
Frequently Asked Questions
No. This tool provides estimates based on guidelines; always confirm doses with local protocols and a licensed clinician.
The calculator references ACLS/PALS guidance and national protocols (e.g., AHA, PALS, NHS). Specific dosing rules are shown and cited on the page.
Volume (mL) = Dose (mg) ÷ Concentration (mg/mL). Confirm vial labeling (e.g., epinephrine 1:10,000 = 0.1 mg/mL).
Yes. Many pediatric emergency drugs use weight-based mg/kg dosing (e.g., epinephrine 0.01 mg/kg). Use PALS rules for children
The calculator can convert to equivalent mg and recommend common device strengths (e.g., naloxone 4 mg IN devices), but device selection should follow local availability and protocol.
Some guidelines specify maximums (e.g., pediatric epinephrine often capped near 1 mg). The calculator will show guideline maxes where appropriate.
Yes — choose the vial/syringe concentration you have on hand (the tool uses that to compute mL). Always verify pharmacy labeling.
This is a clinical tool for estimation. Final dosing decisions, drawing up medication, and administration are the responsibility of licensed clinicians and must follow local policy.