If your Mounjaro pen failed or you can't tell whether the dose went in, don't start a second injection on your own: keep the pen and its carton, report it to Lilly online or at 1-800-545-5979 (9 a.m. to 5 p.m. ET, weekdays), and ask your prescriber or pharmacist how to handle this week's dose. If you already injected again and think you took too much, call your healthcare provider or Poison Help at 1-800-222-1222, or go to the nearest emergency room.

Most people on tirzepatide need better meals more than pills. Experts advise a daily multivitamin with minerals if you eat very little or lose weight very fast, and folic acid if you could become pregnant. Skip weight-loss boosters, and know the warning signs that need action right away.

Zepbound and Mounjaro come as pens and as vials; for injection, Wegovy and Ozempic come as pens, and their labels also list prefilled syringes but no vial. If your prescriber gives you a choice, a pen spares you from drawing each dose into a syringe, the step most of the compounded semaglutide dosing errors FDA described in 2024 involved.

About 6% of starting weight by week 8, roughly 12 pounds from 200 (our arithmetic), is the average among people still taking Zepbound (tirzepatide) in SURMOUNT-1, a trial in adults with obesity, or overweight plus a weight-related condition, and no diabetes; more than a third had not yet lost 5%, and the trial reports we checked give no first-month average. In U.S. health records, adults with overweight or obesity who started Mounjaro had lost 5.3% on average at 3 months and 8.2% at 6 months, counting people who stopped, or 5.9% and 10.1% among those still taking it.

Yes, a licensed doctor may prescribe compounded tirzepatide when the legal conditions are met, but it has no FDA approval and some doctors decline. For an injection at or near an approved strength, your prescriber usually has to document a difference that matters medically for you; a lower price does not count.

What Zepbound, Mounjaro and compounded tirzepatide cost without insurance as of October 3, 2026: LillyDirect's price at each dose, a dated year of fills, membership and prescriber fees, and seven compounded offers totaled for 12 months.

No agency ranks compounded tirzepatide providers. This page explains what the law allows after the shortage, how to check any provider's prescriber and pharmacy, which claims FDA calls misleading, when an approved drug or your own doctor is the better route, and PlexusDx's own answers.