Pharmacist-Developed  ·  Evidence-Based

Clinical decisions.
Calculated with precision.

An advanced clinical calculator platform built by a Pharm.D. to improve medication safety, dosing accuracy, and workflow efficiency across oncology, infectious disease, cardiology, renal dosing, and nutrition support.

5 Specialties
Pharm.D. Developed
Free Open Access
Mobile Ready
Clinical Tools

Clinical Calculators

Organized by specialty area for quick access at the point of care.

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Oncology

ChemoRx Regimen Calculator

Patient-specific chemotherapy regimen calculator with dosing support and pharmacist verification workflow.

Open Calculator
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Infectious Disease

InfectionRx

Antimicrobial stewardship tool for infection-based antibiotic selection, dosing, and clinical review.

Open Calculator
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Renal & PK

Renal Function Calculator

CrCl and eGFR calculator for renal function assessment and medication dose adjustment support.

Open Calculator
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Cardiology

Sotalol IV Loading Calculator

Clinical calculator for IV sotalol loading protocol workflow, QTc monitoring, and dose verification.

Open Calculator
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Cardiology

AnticoagRx

Anticoagulation decision-support tool for DOAC, warfarin, heparin, periprocedural, renal dosing, interaction, and reversal review.

Open Calculator
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Nutrition Support

TPN Calculator

Total parenteral nutrition planning calculator with macronutrient dosing and clinical review support.

Open Calculator
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Pharmacy · Live Data

ShortageRx

Search current U.S. drug shortages — status, reason, presentations, and dates — live from the FDA's free openFDA API.

Open Tool

Our Purpose

Precision tools built
for the clinician's workflow.

Clinical Rx was built to fill a genuine gap: pharmacist-grade calculators that reflect how clinicians actually think and work — not generic math wrapped in a healthcare skin. Every calculator mirrors real-world clinical decision-making.

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Workflow-Integrated Design Mirrors real-world clinical reasoning, with dosing alerts, monitoring parameters, and step-by-step verification built in.
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Guideline-Grounded Built from package inserts, clinical guidelines, and peer-reviewed references — not simplified rule-of-thumb formulas.
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No Login. No Data Collection. Fully open-access and privacy-conscious. Just tools you can trust at the point of care — no account required.
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Point-of-Care Ready Responsive on any device — from a desktop workstation to a smartphone at the bedside.
Platform

Built for real clinical workflow.

Designed with practical medication-use and verification in mind.

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Evidence-Based

Built using package inserts, clinical references, and guideline-based workflows validated for professional use.

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Pharmacist Developed

Created by a Pharm.D. with medication-use accuracy, clinical verification, and practical workflow as priorities.

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Mobile Friendly

Responsive on desktops, tablets, and smartphones — reliable at the point of care or in the pharmacy.

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Clinical Decision Support

Dosing calculations with clinical warnings, monitoring considerations, and structured review steps.

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Expandable Platform

Architected to grow — additional calculators and specialty tools are added as clinical needs evolve.

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Free & Open Access

Available at no cost as an open-access resource. No login, no fees — just professional-grade tools.


Free & Open Access

Clinical & Pharmacy Resources

A curated hub of authoritative, no-cost sources — FDA, CDC, NIH/NLM, and openly published society guidelines. No subscription or login required. Links open in a new tab.

About

About Clinical Rx

Clinical Rx was created by R. Thoonkuzhy, Pharm.D. to provide healthcare professionals with practical, evidence-based clinical calculators and decision support tools. The platform focuses on pharmacy, infectious diseases, oncology, cardiology, renal dosing, and nutrition support — with a commitment to accuracy, clinical relevance, and open access for all healthcare professionals.
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Important Notice

Clinical Disclaimer

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For Licensed Healthcare Professionals Only

Clinical Rx is intended for use by licensed healthcare professionals. The calculators and references provided are clinical support tools only — they do not replace professional judgment, institutional policies, package inserts, or current clinical guidelines. Users are responsible for independently verifying all calculations and recommendations before applying them to patient care decisions.