Our methodology

Every price comparison, pharmacy evaluation, and product recommendation on RxGrab follows a structured research process. This page explains exactly how we collect data, evaluate options, and determine rankings so you can assess our recommendations with full transparency.

How we collect pricing data

Prescription drug prices on RxGrab are collected from multiple sources:

• Pharmacy websites: We pull listed cash prices directly from pharmacy pricing tools, online portals, and published rate sheets for Walmart, Costco, CVS, Walgreens, Amazon Pharmacy, and others.
• Discount program databases: We check prices through GoodRx, SingleCare, RxSaver, and Cost Plus Drugs for each medication we profile.
• Phone verification: For key medications, we call pharmacies directly to confirm posted prices and check for in-store-only discounts.
• Published $4 lists: We maintain current copies of pharmacy $4/$10 generic lists and verify them against official pharmacy documentation.

Prices are collected for specific drug names, doses, and quantities (typically 30-day and 90-day supplies). We note the date of last verification on every article and drug profile.

How we evaluate pharmacies and discount programs

When comparing pharmacies or discount programs, we evaluate each option across four criteria:

• Price competitiveness (40% weight): Average savings across a basket of 20 commonly prescribed generic medications, compared to the national average cash price.
• Drug coverage breadth (25% weight): How many medications are covered by the program, and whether common maintenance drugs, specialty medications, and controlled substances are included.
• Accessibility (20% weight): Geographic availability, pharmacy network size, online ordering options, and ease of sign-up.
• Transparency (15% weight): Whether prices are publicly listed before purchase, whether the program discloses its business model, and whether pricing is consistent across locations.

How rankings are determined

Rankings in our comparison guides are determined by weighted composite scores. Each criterion is scored 1 to 10 based on our research data, then weighted as described above. Rankings reflect the best overall value for uninsured or underinsured patients seeking the lowest out-of-pocket cost.

When two options have the same composite score, we use price competitiveness as the tiebreaker. We note when rankings would differ for specific medications or patient situations.

Affiliate disclosure

Some links on RxGrab are affiliate links. When you click through and make a purchase or sign up for a service, we may earn a commission at no extra cost to you. Affiliate relationships never influence our rankings, scores, or recommendations. We include non-affiliate options in every comparison when they merit inclusion. For full details, see our disclosure page.

Update cadence

Drug pricing profiles are updated monthly. Pharmacy comparison guides are reviewed quarterly. Discount program reviews are updated semi-annually or whenever a program announces significant changes to its pricing structure, pharmacy network, or coverage. Each article displays its most recent update date.

Limitations

Prescription drug prices vary by location, pharmacy, insurance status, and date. Prices shown on RxGrab are estimates based on our most recent data collection and may not reflect the exact price you will pay at your local pharmacy. Always confirm the current price with your pharmacist before making a purchase decision. Our content is informational, not medical advice. Consult your physician or pharmacist before making changes to your medication regimen.

Corrections

If you find a pricing error, outdated program detail, or factual mistake, contact us at [email protected]. We investigate all correction requests and update content within 48 hours when errors are confirmed.