Cost Plus Drugs is the pharmacy Mark Cuban launched in 2022 to do one thing: prove that generic drugs in America are massively overpriced because of pharmacy benefit manager (PBM) spread pricing.01 The pitch is brutally simple, they show you the manufacturer's actual cost, add 15%, add a $5 pharmacy fee, add shipping, and that's your price. No insurance. No middlemen.
For most generics, this beats your insurance copay. Not "sometimes." Most of the time. We pulled prices on 47 commonly prescribed generics and compared Cost Plus to BlueCross BlueShield's standard copay tier, GoodRx coupons at major chains, Costco member pricing, and Walmart's $4 list.02 Cost Plus is cheapest on 34 drugs, Walmart wins on 9 (mostly antibiotics and very cheap statins), and GoodRx beats both on 4 specialty generics where the manufacturer stacks a coupon.
The strongest single play for multi-prescription cash-pay patients.
Wins on 34 of the 47 generics compared here. Loses to Walmart $4 on cheap antibiotics and to insurance on $0-copay tier-1 generics. If you take 2+ chronic-condition generics and pay cash, Cost Plus is almost certainly your cheapest option.
01 / 06Who Cost Plus is actually for
If you take generic medications and pay cash (uninsured, high-deductible, or your copay is over $10), Cost Plus is almost certainly your cheapest option. The math gets even more lopsided if you take 2 or more chronic-condition generics, by Drug #3 you've already saved more than a year of Amazon Prime in a single month.03
02 / 06Cost Plus vs Amazon RxPass
The honest comparison: Cost Plus isn't the only "mail-order generics at near-cost" play. The strongest alternative is Amazon Pharmacy's RxPass program, a $5/month flat subscription for unlimited eligible generics, restricted to Prime members.04 We benchmarked them head-to-head on the same 47 drugs.
- 2,500+ generics in catalog
- Per-drug pricing, no subscription
- $5 pharmacy fee + shipping
- 5-10 day delivery
- Brand-name drugs limited
- ~60 eligible generics only
- Flat $5/mo for ALL covered drugs
- Requires Prime ($139/yr)
- 2-5 day delivery
- No brand-name coverage
You are either renting, insured, or direct-paying.
| Approach | Per month | 2-year cost |
|---|---|---|
| CVS retail (no coverage)3 generics @ avg cash price | $138 | $3,312 |
| Insurance copay (BCBS standard)3 generics @ tier-1 copay | $45 | $1,080 |
| GoodRx + CVS3 generics @ best coupon | $36 | $864 |
| Walmart $4 listOnly 2 of 3 covered, CVS for 3rd | $28 | $672 |
| Amazon RxPass$5/mo subscription | $5 | $120 |
| Cost Plus Drugs3 drugs in 1 monthly order + $5 fee + $5 shipping | $22 | $528 |
The headline finding: Amazon RxPass is technically cheaper than Cost Plus if all three of your drugs are on RxPass's ~60-drug eligible list AND you already pay for Prime. The catch is the eligibility list is narrow, newer generics, post-2020 patent expirations, and most psychiatric/cardiology niche generics aren't covered.05 If even one of your three drugs falls off the list, Cost Plus pulls ahead.
The dirty secret of generic pricing is that the spread between what two pharmacies charge for the identical generic is usually larger than the drug itself. Everything above acquisition cost is markup, PBM spread, or insurance theater. RxGrab, on the price gaps compared below
03 / 06The full price comparison
Below is a representative sample of the 47 generics compared. Our wider method is on the methodology page.
| Drug · 30-day | CVS cash | GoodRx | Costco | Amazon | Cost Plus |
|---|---|---|---|---|---|
| Atorvastatin 20mg | $58.16 | $12.08 | $8.74 | $5.50 | $3.90 |
| Lisinopril 20mg | $24.30 | $8.40 | $4.00 | $5.00 | $4.50 |
| Metformin 1000mg | $36.80 | $9.10 | $4.62 | $6.40 | $3.30 |
| Sertraline 100mg | $42.50 | $14.20 | $6.18 | $5.50 | $4.80 |
| Tadalafil 5mg (90ct) | $298.00 | $58.00 | $67.50 | $32.00 | $24.30 |
| Imatinib 400mg (cancer) | $2,500+ | $1,200 | $890 | $310 | $47.30 |
| Amoxicillin 500mg (10ct) | $18.40 | $5.20 | $4.00 | $8.00 | $12.50 |
| Atomoxetine 40mg (ADHD) | $385.00 | $165.00 | $92.50 | $78.00 | $28.00 |
The imatinib row is the headline, Cost Plus sells a generic of Gleevec, a chronic myeloid leukemia drug, for $47.30/month.06 Branded Gleevec is $9,000+. Even on insurance with a 20% coinsurance, you'd pay roughly $1,800/month. This is the story Cost Plus was built to tell.
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04 / 06Where Cost Plus actually loses
Cost Plus's pharmacy fee is $5 per order. Shipping is another $5 per order. That means if you order a single $3.90 atorvastatin alone, your real cost is $13.90, and now Walmart's $4 list wins for one-drug patients. The whole model assumes you bundle.
There's also no insurance billing. Even if your insurance would cover your drug, Cost Plus won't run it through. You can submit receipts to your HSA or FSA, but you can't apply the spend toward your deductible. For patients with low-copay insurance, Cost Plus is a net loss.
Six metrics, same weight, no exceptions.
Most "best pharmacy" lists are repackaged press releases. We score every pharmacy on six fixed metrics, weight them equally on a 10-point scale, and publish what failed alongside what won. Read the full methodology →
Cash Price
Per-drug 30-day cash price vs CVS retail baseline.
Catalog Depth
Number of generics + brand-name drugs available.
Fulfillment Speed
Order-to-delivery in business days, weighted.
Insurance Stack
Whether prices can apply to deductible / HSA.
Pharmacist Access
Direct pharmacist-consult channel + speed.
Pricing Transparency
Public price index, no member-only walls.