NCLEX-RN Food-Drug Rules Cheat Sheet (Free Printable)

If you know at a glance whether a drug goes down with food, never touches a certain food, or does not care, you hold one of the most practical skills the NCLEX-RN tests. This cheat sheet sorts medications into three lanes.

The green lane is iron, covering ferrous sulfate, gluconate, and fumarate: give it with food or immediately after a meal, swallow tablets whole, mix the elixir with water or fruit juice and never milk or wine, and keep doxycycline, minocycline, and tetracycline two hours away. The red lane is grapefruit, which blocks gut CYP3A4: levels climb with simvastatin, atorvastatin, nifedipine, cyclosporine, budesonide, and amiodarone, while fexofenadine works in reverse, letting less into the blood. The blue lane is warfarin, the anticoagulant that is food neutral but schedule strict: effects last two to five days, monitoring is PT reported as INR, and bleeding signs go on your watch list.

The exam tests it because medication administration and patient teaching are core nursing work. Drill each lane until the pairings are automatic, and remember: effects vary by person, drug, and amount consumed, so the prescription label and your facility protocol have the final word.

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Effects vary by person, drug, and amount consumed - follow the prescription label and your facility protocol

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