Zepbound (tirzepatide) is a once-weekly injection for chronic weight management and the most prescribed injectable obesity medication in the country. At Slender Me Medical in Corona, we prescribe it as part of a supervised membership program — weekly check-ins, direct access to your provider, and your prescription sent wherever you want it, whether that’s the manufacturer’s direct program or your neighborhood pharmacy.
What Zepbound Is
Zepbound is the brand name for tirzepatide, approved by the FDA in November 2023 for chronic weight management in adults with obesity, or adults who are overweight with at least one weight-related condition, alongside a reduced-calorie diet and increased physical activity.
It is mechanically different from Wegovy and the oral GLP-1s. Semaglutide and orforglipron act on one receptor; tirzepatide activates two — GIP as well as GLP-1. It is the only dual-activating medication of its kind, and that difference shows up in the trial results.
What the Studies Showed
In the SURMOUNT-1 trial, adults taking Zepbound 15 mg lost an average of 20.9% of their body weight over 72 weeks, compared with 3.1% for placebo.
SURMOUNT-5 compared it directly against injectable Wegovy:
- Zepbound: average 20.2% weight loss, roughly 50 pounds
- Injectable Wegovy: average 13.7% weight loss, roughly 33 pounds
That makes tirzepatide the most effective FDA-approved weight loss medication currently available. Individual results vary, and factors beyond the medication contribute to weight loss.
Also Approved for Sleep Apnea — and Why That Matters
In December 2024, Zepbound became the first and only prescription medicine approved for moderate-to-severe obstructive sleep apnea in adults with obesity.
In the SURMOUNT-OSA trials, patients on Zepbound had 25 to 29 fewer breathing interruptions per hour compared with 5 to 6 on placebo. After a year, 42% of patients not using PAP therapy and 50% of those using it no longer had moderate-to-severe sleep apnea.
There is a practical consequence worth knowing. Many insurance plans exclude weight loss medication entirely but will cover treatment for a diagnosed medical condition. If you have moderate-to-severe OSA, the sleep apnea indication can open a coverage path that weight loss alone does not. If you snore heavily, wake unrested, or have been told you stop breathing at night, tell us — it may change what you can access.
KwikPen or Single-Dose Vial: Which Is Right for You
Zepbound comes two ways, and the choice is genuinely worth thinking about rather than defaulting to whatever the pharmacy sends.
The KwikPen
A single pen holding four weekly doses — a full month of treatment in one device. The needle is pre-attached and the dose is pre-set, so there is no drawing up and no measuring. Approved by the FDA in February 2026.
Best for patients who want the simplest possible weekly routine, who travel and would rather carry one item than four, or who feel uneasy handling a syringe. Most patients who are new to injections do better starting here.
The single-dose vial
One vial per weekly dose, drawn up with a syringe. It takes an extra step and requires you to be comfortable measuring a dose.
Best for patients already confident with injections, and in some cases the more economical option depending on the manufacturer’s current self-pay pricing, which differs between formats.
What we recommend
There is no clinical difference — the medication is identical. It is entirely a question of handling and cost. We will show you both at your consultation, and if you start on one and would rather switch, that is a simple change. Either format requires refrigeration.
How It Is Taken
Zepbound is injected once a week, on the same day each week, with or without food, into the abdomen, thigh or upper arm. The needle is very short and most patients find it far less unpleasant than they expected.
Dosing starts low and steps up gradually. Reaching an effective dose without being derailed by side effects is the part most patients find difficult on their own, and it is the part we manage with you week by week.
Important Safety Information
Tirzepatide may cause thyroid C-cell tumors, including medullary thyroid carcinoma (MTC). Do not take Zepbound if you or any family member has ever had MTC, or if you have Multiple Endocrine Neoplasia syndrome type 2 (MEN 2). Tell your provider about any lump or swelling in the neck, hoarseness, trouble swallowing, or shortness of breath.
The most common side effects are nausea, diarrhea, vomiting and constipation, usually when starting or increasing the dose. Zepbound should not be used with other GLP-1 receptor agonist medications.
This page is general information, not medical advice. Whether Zepbound is appropriate for you is decided at your consultation after we review your history.
How Our Program Works
Our membership is $125 per month and includes:
- Weekly weigh-ins with guidance from your provider, not a scale and an app
- Weekly B12 injections for energy support
- Direct access to our team through our texting platform, so questions between visits get answered
- Ongoing dose management — we start low, move at your pace, and adjust when side effects show up instead of leaving you to push through them
- Injection technique taught in person, with whichever format you choose, rather than from a video
- Your prescription sent where you want it — directly to the manufacturer’s self-pay program or to the pharmacy of your choice. You are not locked into ours.
- The same people every time — you are not reassigned to whoever is available
The membership covers your care. You pay the manufacturer or pharmacy separately for the medication itself, at their price, and we will tell you what that currently is before you start.
Why Patients Choose Us Over Mail-Order
Most people who stop a GLP-1 do not stop because it failed. They stop because the dose increased too quickly, the nausea became unmanageable, and there was nobody to call.
When something is not working here, you reach an actual person who knows your history and can adjust the plan that week. We have practiced in Corona since 2011, and our patients see the same faces every visit.
In-Office or Telehealth
Tirzepatide is not a controlled substance, so we can manage your treatment in person at our Corona clinic or entirely by telehealth. Telehealth patients get the same weekly check-ins, the same texting access, and the same provider.
Serving Corona and the Inland Empire
Our clinic is at 2083 Compton Avenue, Suite 101, Corona, CA 92881, with ample parking. We see patients from Corona, Norco, Eastvale, Riverside, Chino Hills, Temescal Valley and the surrounding Inland Empire.
Hours: Monday, Tuesday, Thursday, Friday and Saturday 8:30am–5:00pm. Wednesday 8:30am–6:00pm. Closed Sunday.
Phone: (951) 898-8515
Frequently Asked Questions
How is Zepbound different from Wegovy?
Zepbound activates two receptors, GIP and GLP-1; Wegovy activates one. In the head-to-head trial, Zepbound produced greater average weight loss. Both are weekly injections and both work — which is right for you depends on your history, tolerance and coverage.
Should I choose the KwikPen or the vial?
The medication is the same either way. The pen is simpler to use and holds a month in one device; the vial takes an extra step and can be less expensive depending on current pricing. Most patients new to injections start with the pen.
Is it better than the pills?
It produced more weight loss in trials than any oral option currently available. But it is an injection, it needs refrigeration, and some patients do better long-term on a pill they will actually keep taking. We will talk it through honestly.
Does insurance cover it?
Coverage for weight loss varies enormously and most plans require prior authorization. If you have diagnosed moderate-to-severe sleep apnea, that indication may open a path your plan otherwise excludes. We will help you work out where you stand.
What if the nausea is bad?
Tell us. Nausea is common when starting or increasing a GLP-1 and is usually manageable by slowing the titration. This is exactly what the weekly contact is for — you should not be deciding alone whether to push through it.
Can I switch from another GLP-1?
Often, yes. They should never overlap, so any switch is planned and supervised.
Do you take insurance?
Our membership is cash-pay. Your medication may be covered separately, and we will help you find out.
Ready to find out if Zepbound is right for you?
Book a consultation at our Corona clinic or by telehealth. We will review your history, discuss the options honestly, and tell you if something else would serve you better.
Book Your Consultation or call (951) 898-8515