Compounded tirzepatide
PreventiveMD vs WeightRx
Quick answer
WeightRx costs $83 a real month and PreventiveMD costs $97 — a difference of $14 a month, or $172 a year. Both figures are computed from what each seller actually charges and how often, not from the price on its landing page.
What each one bills
| PreventiveMD | WeightRx | |
|---|---|---|
| True monthly cost | $97 | $83 |
| Advertised as | $97 | $83 |
| Charged | once a year | every calendar month |
| Each charge | $1,168 | $83 |
| Price basis | a starting-dose price that climbs | a starting-dose price that climbs |
| Mandatory recurring fee | none found | none found |
| States it names | 36 states | not published |
| FDA warning letter | none on record | none on record |
Where they actually differ
- They bill on different clocks. PreventiveMD charges once a year and WeightRx charges every calendar month. That alone changes what a “month” costs, which is the whole reason this index recomputes every price.
How we know
Both figures were read on the seller’s own site and recomputed over a 30.4375-day calendar month from the charge and the billing period it covers. Neither is a seller’s own “/mo”. The full working for each — the charge, the period, the arithmetic and the date it was read — is on its own page: PreventiveMD and WeightRx. The method is set out in how we verify.
To compare any two sellers in the index rather than these two, use the comparison tool.