Use this guide to understand how to take Wegovy®, Mounjaro®, Ozempic®, Zepbound®, and Generic Semaglutide, including weekly injection frequencies, clinician-led dose adjustments, missed dose guidelines, switching between treatments, and how multi-injection regimens work for higher doses of Generic Semaglutide.
Use this article when you want to:
Learn how often to take your GLP-1 or GIP/GLP-1 medication.
Understand how clinicians adjust your weekly dose.
Know what to do if you miss one or more doses.
Learn about switching between different weight management treatments.
Understand multi-injection schedules for Generic Semaglutide doses above 1 mg.
Check storage and remaining medication rules for multi-dose pens.
How Often Do I Take My Medication?
Wegovy®, Mounjaro®, Ozempic®, Zepbound®, and Generic Semaglutide are all administered once weekly as a subcutaneous injection (injected under the skin into the abdomen, thigh, or upper arm).
Weekly Schedule: Each dose stays active in your body for approximately one week. You should take your injection on the same day each week.
Changing Dosing Day: If you need to change your regular injection day, leave at least 3 days (72 hours) between your last dose and your new dose.
Is There a Standard Dose?
No. There is no single standard dose that works for everyone. A MedExpress clinician personalizes your dose based on:
Your individual response to treatment.
Any side effects you experience during dose escalation.
Your weight loss progress and overall health.
Your clinician may adjust your schedule by keeping you on a lower dose for longer to manage side effects, or gradually increasing your dose over time to support steady, sustainable weight loss.
Multi-Injection Regimens for Generic Semaglutide (Doses Above 1 mg)
Generic Semaglutide pens deliver a maximum of 1 mg per single injection. If your prescribed weekly dose is higher than 1 mg, you will give yourself more than one injection on your dosing day using multiple pens provided by the pharmacy:
1.5 mg Weekly Dose: Requires 2 injections on the same day (1 × 1 mg pen + 1 × 0.25/0.5 mg pen), using 8 needles per month.
2 mg Weekly Dose: Requires 2 injections on the same day (1 × 1 mg pen + 1 × 1 mg pen), using 8 needles per month.
2.5 mg Weekly Dose: Requires 3 injections on the same day (1 × 1 mg pen + 1 × 1 mg pen + 1 × 0.25/0.5 mg pen), using 12 needles per month.
Important Guidelines for Multi-Injection Regimens:
All injections for that week must be administered on the same day.
Use a fresh, sterile needle for every individual injection.
Inject at a different spot for each dose (rotate sites on your abdomen, thigh, or upper arm).
If you prefer a single weekly injection at higher strengths (such as 1.7 mg or 2.4 mg), your clinician can discuss whether switching to Wegovy® is appropriate for you.
What Should I Do If I Miss a Dose?
Missed dose instructions vary depending on the active ingredient in your medication:
For Ozempic®, Wegovy®, and Generic Semaglutide (Semaglutide)
Within 5 Days: Take the missed dose as soon as possible within 5 days (120 hours) of your scheduled injection time.
After 5 Days: Skip the missed dose completely and take your next dose on your regular scheduled day.
Never Double Up: Do not take an extra dose or double dose to make up for a missed injection.
For Mounjaro® and Zepbound® (Tirzepatide)
Within 4 Days: Take the missed dose as soon as possible within 4 days (96 hours) of your scheduled injection time.
After 4 Days: Skip the missed dose completely and take your next dose on your regular scheduled day.
Never Double Up: Do not take an extra dose or double dose to make up for a missed injection.
Missing Multiple Doses
If you miss more than one weekly dose of any treatment, contact MedExpress Customer Care. A clinician will review your account to determine if it is safe to resume your current dose or if you need to re-titrate starting from a lower dose to avoid severe gastrointestinal side effects.
Switching Between Weight Loss Medications
A MedExpress clinician may recommend switching between treatments based on clinical suitability, availability, or side effect management:
Switching Between Semaglutide Treatments: Because Generic Semaglutide, Wegovy®, and Ozempic® contain the same active ingredient (semaglutide), transitioning between them at equivalent strengths is straightforward.
Switching Between Semaglutide and Tirzepatide: Switching between semaglutide (Wegovy®/Ozempic®) and tirzepatide (Mounjaro®/Zepbound®) involves changing active ingredients and may require starting at a specific escalation dose.
Off-Label Switching Doses: In certain scenarios, a clinician may prescribe a specific transition dose to maintain your weight loss progress without restarting at the absolute lowest dose, provided it is clinically safe for you.
Multi-Dose Pens and Remaining Solution Rules
Multi-dose pens (such as Ozempic® pens) contain extra solution by design to allow for required pre-injection flow checks (priming):
In-Use Shelf Life: An in-use Ozempic® pen can be stored at room temperature (below 30°C) or in a refrigerator for up to 8 weeks (56 days).
Do Not Administer Leftover Liquid: Once you have completed your 4 prescribed weekly doses (or once 8 weeks have passed), discard the pen. Do not attempt to dial, extract, or inject unmeasured leftover liquid from the bottom of the pen, as this risks inaccurate dosing.
Generic Semaglutide Pen Appearance
Generic semaglutide may be supplied by different licensed manufacturing partners, meaning pen designs and outer packaging may vary between orders. The active ingredient, strength, and clinical effect remain identical. Always inspect your box upon arrival to verify the medication name and prescribed dose strength.
Need Further Support?
If you still need help after reviewing the information above, additional assistance is available.