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All medications
InjectionFDA 2023Eli Lilly

Zepbound

tirzepatide

The most effective GLP-1 approved for weight loss.

Avg weight loss
15–22% body weight
Cost (cash)
$1,059 cash
About

What is Zepbound?

Zepbound is a dual GIP/GLP-1 receptor agonist — meaning it activates two gut hormones that regulate appetite and blood sugar.

In SURMOUNT-1, adults on the highest dose lost an average of 22.5% of body weight over 72 weeks — the largest reduction shown by any approved GLP-1 medication.

Dosing

Slow and steady wins.

Once-weekly subcutaneous injection, titrated every 4 weeks based on tolerance.

Your provider may extend any dose level if you're tolerating well at a lower strength — there's no prize for moving up faster.

Weeks 1–4
2.5 mg (starter)
1
Weeks 5–8
5 mg
2
Weeks 9–12
7.5 mg
3
Weeks 13–16
10 mg
4
Weeks 17–20
12.5 mg
5
Week 21+
15 mg (max)
6
Side effects

What to watch for, and what helps.

Most Zepbound side effects are GI-related and concentrated in the first weeks after each dose increase. Here's the playbook for managing each one.

Nausea

Most common in the first 2 weeks after each dose increase.

Diarrhea

Typically mild and resolves within a week.

Constipation

Increase fiber gradually and aim for 80oz of water daily.

Fatigue

Often tied to under-eating during titration.

Injection site reaction

Mild redness or itching is common.

Price

Find the lowest
Zepbound price near you.

We compare every pharmacy in your zip code and stack manufacturer savings, GoodRx coupons, and direct-pay programs.

Find best price for Zepbound
Typical pricing
$1,059 cash
cash price, before savings
With savings
~$25/mo with Lilly Savings Card

This page is educational and not medical advice. Always consult your healthcare provider before starting, stopping, or changing any medication.