






Zepbound® Pen
The first weight medicine to work on two appetite hormones at once, with some of the strongest results seen in trials.
FDA-approved GLP-1 treatment
Reviewed by licensed US providers
Fast, discreet delivery and ongoing support

Zepbound® Pen
Quick summary
Type of Medicine
Once weekly injectable that activates both the GLP-1 and GIP appetite hormones
Generic
No
Active Ingredient
Tirzepatide, supplied in single dose prefilled pens
Effective Within
Appetite often quietens within the first couple of weeks. Weight then falls steadily across three to six months as the dose is built up.
Works By
Activates the GLP-1 and GIP gut hormones to curb appetite, slow stomach emptying and increase fullness.
Side Effects
Nausea, diarrhea, constipation and a feeling of fullness are the usual early complaints, almost always easing as the body adjusts. Rarer concerns include pancreatitis and gallbladder problems.
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Zepbound® PenOne weekly shot with one pen a month
One tablet a day
One weekly shot with one pen a week.
Lose around 20–21% of body weight*
Lose around 11% of body weight*
Lose around 20–21% of body weight*
People who prefer a weekly routine
People who prefer no needles
People who prefer a weekly routine
Inject under the skin using a pre-filled pen. The same pen has 4 doses for 4 weeks.
Take on an empty stomach with water
Inject under the skin using a pre-filled pen.
Cash-pay only
Cash-pay only
Cash-pay or insurance might be available
How it works
From question to doorstep, in days not weeks.
Product details
Zepbound is the treatment that changed the conversation around obesity. Its active ingredient, tirzepatide, is the first approved medicine to work on two of the body's appetite hormones at the same time, GLP-1 and GIP. That combination is what sets it apart, and it is why the results in clinical study have been so striking.
In the pivotal SURMOUNT trial, adults taking the highest dose lost on average close to a fifth of their body weight over roughly seventeen months, compared with very little change on placebo. Most people start low and build up slowly over several weeks, which gives the body time to settle and keeps side effects manageable.
You inject it just under the skin once a week, on any day that suits your routine, using a simple pen that holds a single dose. Appetite tends to quieten first; the weight follows.
- Tirzepatide acts on two appetite pathways, not one, which is unique among approved treatments
- The dose climbs gradually so your body adjusts comfortably
- One injection a week, taken at the same time on whichever day you choose
Like others in its class, tirzepatide carries a boxed warning relating to a rare thyroid tumor seen in animal studies, so it is not suitable for anyone with a personal or family history of medullary thyroid cancer or the MEN 2 syndrome. It is available only on prescription.
Tirzepatide as the active ingredient, in a sterile solution for injection.
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