Medication safety · dosing & conversion

Medication safety

The equivalence conversions, weight-based dosing and infusion-rate math you redo all the time, turned into tools you fill in to get the answer. Conversion factors are verified and computed locally — nothing is uploaded. Opioids include a cross-tolerance dose reduction; weight-based dosing includes dose caps.

29medication tools
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⚖️ Sourced equivalence factors🛡️ Built-in safe taper / caps🧮 Computed locally, no upload🔗 Loops back to the calculators
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💊 Opioid Equianalgesic Converter (OME)

Convert daily opioid doses between agents via oral morphine equivalents (OME), with an incomplete cross-tolerance reduction range.

Methodology & calculator →
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💊 Benzodiazepine Equivalent Converter

Convert between benzodiazepines by diazepam equivalents, for switching and tapering (long-acting substitution for short-acting agents).

Methodology & calculator →
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💉 Vancomycin Empiric Dosing

Empiric vancomycin loading dose, maintenance dose and interval by weight and creatinine clearance (AUC-guided; requires TDM).

Methodology & calculator →
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💊 Acetaminophen (Paracetamol) Dose & Toxicity Threshold

Check acetaminophen daily/single-dose limits and whether an acute ingestion reaches the toxic threshold or warrants NAC.

Methodology & calculator →
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💉 Aminoglycoside Empiric Dosing

Gentamicin/tobramycin/amikacin high-dose extended-interval (once-daily) empiric dosing by dosing weight and CrCl; requires TDM.

Methodology & calculator →
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🫘 Renal Dose Adjustment Quick Reference

Quick reference for adjusting common renally-cleared drugs by renal function (CrCl/eGFR); not exhaustive — follow the latest product label.

Methodology & calculator →
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📈 QT Prolongation Risk & High-Risk Drugs

Quick reference to high-risk drug classes, risk factors and management for QT prolongation / torsades (TdP); per-drug authoritative ratings at CredibleMeds.

Methodology & calculator →
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🤰 Medication Use in Pregnancy — Reference

The former FDA letter categories (withdrawn 2015), the PLLR labelling rule, prescribing principles and authoritative resources; not a per-drug rating.

Methodology & calculator →
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🚨 Pediatric Code (PALS) Dose Card

Weight-based PALS emergency drugs and electrical therapy doses (epinephrine/amiodarone/adenosine/atropine/defibrillation/fluids, etc.).

Methodology & calculator →
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🎯 Therapeutic Drug Monitoring (TDM) Targets

Quick reference to target ranges, sampling timing and toxicity cues for commonly monitored drugs.

Methodology & calculator →
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🫀 Hepatic Dose Adjustment Key Points

Adjustment and avoidance points for common drugs in hepatic impairment (Child-Pugh), by class; follow the product label.

Methodology & calculator →
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🔗 Drug Interaction Key Points

Quick reference to mechanisms and typical combinations for high-frequency, dangerous drug interactions; check each pair in a professional interaction database.

Methodology & calculator →
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🩸 Warfarin & INR Management

Target INR, high-INR/bleeding management (ACCP/CHEST), interactions and missed-dose points.

Methodology & calculator →
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💉 Unfractionated Heparin (UFH) Weight-Based Dosing

Weight-based UFH IV loading dose and initial maintenance rate (Raschke nomogram), aPTT/anti-Xa guided.

Methodology & calculator →
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🧂 Electrolyte Replacement Reference

Dose, route and rate-limit points for repleting potassium/magnesium/calcium/phosphate (sodium & free-water deficits are in the electrolyte/acid-base group).

Methodology & calculator →
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🌉 Perioperative Anticoagulant/Antiplatelet Bridging

Warfarin bridging, DOAC interruption and resumption, and perioperative antiplatelet handling (CHEST 2022 / ACC / ASRA).

Methodology & calculator →
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🩸 Perioperative / Stress Glycaemic Management

Inpatient/perioperative glucose targets, pre-op antidiabetic adjustment, steroid-induced hyperglycaemia and insulin-infusion points (ADA inpatient standards).

Methodology & calculator →
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💊 Glucocorticoid Stress Dosing & Taper

Perioperative stress dosing (by surgical magnitude), adrenal crisis management and long-term steroid tapering (Endocrine Society / Woodcock 2020).

Methodology & calculator →
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🧬 Tumour Lysis Syndrome (TLS) Prophylaxis

TLS risk stratification, prophylaxis (hydration/allopurinol/rasburicase), monitoring and the Cairo-Bishop definition.

Methodology & calculator →
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🥗 Parenteral Nutrition Basic Formula Estimator

Estimate parenteral nutrition (PN) energy, protein, fluid, lipid and glucose targets by weight and stress state, with refeeding cautions (ASPEN).

Methodology & calculator →
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💧 Fluids: Resuscitation & Rate Reference

Resuscitation volumes, maintenance fluids (links to calculators), fluid choice and rate-safety points (4-2-1 maintenance is in a dedicated tool).

Methodology & calculator →
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☠️ Common Poisoning Antidotes Quick Reference

Specific antidotes and key doses/points for common poisonings; for life-threatening cases prioritise supportive care + poison-control contact.

Methodology & calculator →
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🔄 Opioid / Benzodiazepine Antagonists

Dose, titration and risk points for naloxone (opioid) and flumazenil (benzodiazepine); supportive care is often safer.

Methodology & calculator →
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🦠 Antibiotic Class Spectrum Quick Reference

Overview of the coverage (spectrum) of common antibiotic classes; empiric choice must factor in local susceptibility (e.g. CHINET), infection site and institutional protocol.

Methodology & calculator →
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🫘 Antibiotic Renal Adjustment Key Points

Adjustment/avoidance points and key safety notes for common antibiotics by renal function (CrCl); includes a 'generally no adjustment' list — follow the label.

Methodology & calculator →
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📐 Antibiotic PK/PD Dosing Strategy

PK/PD targets and optimised dosing strategies for time-dependent / concentration-dependent / AUC-type antibiotics (extended infusion, once-daily, etc.).

Methodology & calculator →
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💉 IV Pump Rate Converter

Convert a drug amount, solution volume, weight and ordered dose into an IV pump rate (mL/h).

Methodology & calculator →
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💊 Weight-Based Dose Calculator

Converts a mg/kg dose into a single dose with an optional per-dose cap; general/pediatric use.

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💊 Glucocorticoid Equivalent Dose Conversion

Converts anti-inflammatory equivalent doses between different glucocorticoids.

Methodology & calculator →
About the medication-safety tools

Equivalence and dose-conversion values are taken from authoritative pharmacology sources and verified, but sources can differ slightly and results are estimates — individualize to the label, your formulary and the patient's hepatic/renal function. After opioid conversion, reduce by 25–50% for incomplete cross-tolerance; methadone, fentanyl patches and buprenorphine are excluded (specialist handling). All results are for licensed clinicians and do not replace clinical judgement.

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