Prescription drug costs, explained in plain English.
Why did your copay jump? Is GoodRx cheaper than your insurance? What even is "step therapy"? We explain how the U.S. drug-pricing system actually works — so you can ask better questions at the pharmacy counter.
Start with the guides
Every guide explains the system — the money, the rules, the paperwork. Nothing here tells you what to take. That's between you, your doctor, and your pharmacist.
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Copays
Why Did My Prescription Copay Go Up? 7 Reasons
The same pill, a bigger number at the counter. The seven most common reasons copays jump — and what you can actually do about each one.
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Saving money
GoodRx vs. Insurance: Which Is Actually Cheaper?
Sometimes the discount card beats your insurance card. Here's how to compare the two prices correctly before you pay.
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Insurance rules
What Is Step Therapy? A Plain-English Guide
"Try this cheaper drug first" — what step therapy means, why insurers require it, and how the exceptions process works.
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How the system works
What Is a Pharmacy Benefit Manager (PBM)?
The middlemen you've never heard of who shape what you pay. What PBMs do, where the money flows, and why it matters to you.
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Deductibles
Does GoodRx Count Toward Your Deductible?
The short answer is usually no — and that changes the math on when the discount card is worth it. Full explanation inside.
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Insurance rules
Prior Authorization: How Long Does It Take?
Your doctor prescribed it, but your insurer wants paperwork first. Typical timelines, what slows things down, and how to check status.
What this site is (and isn't)
RxPlainly explains the money and mechanics of U.S. prescription drug coverage: copays, deductibles, formularies, discount cards, and the companies in between. We cite primary sources — CMS, the FDA, and independent research — on every guide.
We never give medical advice. You won't find "should I take this drug," dosage guidance, or treatment recommendations here. For anything about your own prescriptions, talk to your pharmacist or doctor. Read the full disclaimer.
We're independent and anonymous. No credentials claimed, no white coats. Just careful research, written so a normal person can understand it. More about us.