Table 2. Average price per tablet/capsule (minimum-maximum) of drugs with as consistent formulations and quantities as possible (not purchased).
| Website Classification (number of websites*) | Celebrex® 200mg×90 | Lipitor® 10mg×90 | Nexium® 40mg×28 | Viagra® 100mg×4** | Zoloft® 100mg×100 |
| NABP approved (6) | $3.89 (3.54–4.06) | $2.98 (2.71–2.98) | $5.74 (5.07–6.20) | $17.21 (13.94–20.55) | $3.68 (3.12–4.32) |
| Legally compliant (10) | $1.91 (1.33–3.84) | $1.72 (1.00–2.89) | $3.11 (1.43–5.62) | $14.94 (12.38–17.49) | $2.11 (1.05–3.53) |
| Not recommended (10) | $1.76 (1.72–1.84) | $1.58 (1.09–1.88) | $3.08 (2.50–3.75) | $20.5 (15.00–36.00) | $1.56 (1.08–2.21) |
| Highly not recommended (15) | $1.63 (1.58–1.69) | $1.69 (1.61–1.76) | $5.56 (2.71–7.03) | $23.95 (17.25–33.65) | $2.70 (1.60–3.79) |
| Celebrex® 200mg×30 | Lipitor® 10mg×30 | Nexium® 40mg×30 | Viagra® 100mg×4 | Zoloft® 100mg×30 | |
| Physical-location pharmacy*** (5) | $4.50 (4.00–5.07) | $3.44 (3.00–3.87) | $6.26 (5.40–6.83) | $17.75 (15.58–20.35) | $4.36 (4.03–5.03) |
*Not all websites offered drugs in the same, consistent quantities.
**There was greater variation in the quantities for Viagra® than for the other drugs. Quantities ranged from 3 tablets to 10 tablets.
***“Physical-location pharmacy”: Pharmacies were selected as the closest within a 0.5 mile radius of the lead author's home address (using Google Maps). No more than one of each chain pharmacy was selected. In addition, the authors included a nearby Wal-Mart store. One pharmacist refused to provide price information.