Mounjaro (tirzepatide, diabetes label) vs Phentermine (generic)
Mounjaro (tirzepatide, diabetes label) is the better choice of the two (halfrx score 6.1 against 3.1).
Computed from the stored fields, so it moves when a price does. Nothing here is written by hand or by a model.
Mounjaro (tirzepatide, diabetes label) or Phentermine (generic): which publishes a price?
Only one of these two publishes a verified all-in price, which settles the comparison before any other axis is reached: Mounjaro (tirzepatide, diabetes label) at $499, and no figure at all for the other. Mounjaro (tirzepatide, diabetes label) is the better choice of the two (halfrx score 6.1 against 3.1). Every axis below is computed from stored fields rather than written by hand, so the comparison moves when a price does. Neither carries an FTC action, a state action, a BBB F grade or an FDA warning letter. One is brand and the other generic, which is the difference between an FDA-approved product and a copy made under the compounding exemption. The published formula scores them 6.1 and 3.1 out of 10, arithmetic over the same stored fields rather than an editor's preference.
Head to head
| What decides it | Mounjaro $499/mo | Phentermine price unverified |
|---|---|---|
| Entry priceNot comparable — Phentermine (generic) publishes no verified all-in price. | not comparable | not comparable |
| Regulatory and complaint riskNeither carries a lawsuit, state action or FDA-approval flag. | level | level |
| Brand vs compoundedMounjaro (tirzepatide, diabetes label) supplies FDA-approved branded medication; Phentermine (generic) supplies compounded, which the FDA does not review for safety, efficacy or quality and which can stop shipping if its pharmacy is enjoined. | level | level |
Read the price gap carefully: these two are not the same purchase
- These are different molecules — Mounjaro (tirzepatide, diabetes label) on tirzepatide, Phentermine (generic) on phentermine — so this is a comparison of two treatments, not of two prices for one.
Mounjaro (tirzepatide, diabetes label)
Pros
Cons
- −Off-label for weight loss without diabetes — expect insurance denial and prescriber reluctance.[1]
- −No published flat self-pay price, unlike Zepbound vials through LillyDirect. For weight loss, Zepbound is the cheaper and cleaner route to the same molecule.[1]
- −Weekly injection with the same GI side-effect profile.[1]
Sources
Phentermine (generic)
Pros
- +The cheapest drug in the category by two orders of magnitude: $0.068 a tablet at pharmacy acquisition cost against $263 for one Zepbound pen.[2]
- +Covered by more Medicaid programmes than any GLP-1 — seven states cover an older weight-loss agent while covering no GLP-1 at all.[3]
- +One tablet each morning, no injection, no titration schedule beyond a possible half dose.[1]
Cons
- −Approved for a few weeks only. Every monthly subscription selling it as ongoing therapy is using it off the label's own duration.[1]
- −Schedule IV controlled substance, chemically related to the amphetamines, with the dependence warnings that follow from that.[1]
- −Stopping after prolonged high dosing brings extreme fatigue and depression, per the label — which is a hard exit from a subscription that sold it as maintenance.[1]
- −No cardiovascular outcome data of the kind the GLP-1s now carry, and contraindicated where blood pressure is uncontrolled.[1]
Comparisons are computed from the fields on each card, not written by hand or by a model, so they change when the data does. Information only, not medical advice. halfrx may earn a commission from some links, which never changes what a comparison says.