Clinical Guides
Evidence-based insulin and diabetes guides — written for patients, pharmacists, and diabetes care teams. All content is grounded in established clinical pharmacokinetic rules.
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10 guides
Insulin Basics
💉 6 min
What Is Insulin?
How insulin works, why it matters, and the difference between Type 1 and Type 2 diabetes.
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🧪 8 min
Types of Insulin
Rapid, short, intermediate, and long-acting insulin: onset, peak, and duration compared.
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⚖️ 5 min
Basal vs Bolus Insulin
Understanding the 50/50 split and how background vs mealtime insulin work together.
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🚀 7 min
Starting Insulin Therapy
Step-by-step guide to initiating insulin: weight-based dosing, titration, and first-week goals.
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Dosing & Calculations
🥗 5 min
Insulin-to-Carb Ratio (ICR)
The 500 Rule explained with worked examples. How to calculate your meal bolus dose.
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🎯 5 min
Insulin Sensitivity Factor (ISF)
The 1800 Rule: how to calculate correction doses when blood glucose is above target.
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⏱️ 6 min
Insulin On Board (IOB)
What IOB is, how exponential decay works, and why insulin stacking is dangerous.
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Safety & Management
⬇️ 6 min
Hypoglycemia (Low Blood Sugar)
Recognizing the signs, the 15-15 rule, glucagon use, and preventing future lows.
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⬆️ 6 min
Hyperglycemia (High Blood Sugar)
Causes, DKA warning signs, correction steps, and sick-day management rules.
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🌡️ 5 min
Insulin Storage & BUD Guide
FDA Beyond-Use Dating rules for opened pens and vials, temperature ranges, and travel tips.
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Put the guides into practice
InsulinPoint's free calculator applies the 500 Rule, 1800 Rule, IOB decay, TDD profiler, and Rx days supply formulas — all in one place, right in your browser.