Ozempic (semaglutide) is FDA-approved for type 2 diabetes, not weight loss. For weight management, the same molecule is available as Wegovy, which is FDA-approved for chronic weight management. At PEAK, we prescribe Wegovy for weight-loss patients.
Before You Start
Preparing for your first injection starts before you pick up the pen. These steps set you up for the best possible experience:
Storage Check
- Your Ozempic pen should have been stored in the refrigerator (36°F–46°F) since you picked it up from the pharmacy
- Never use a pen that has been frozen—freezing damages the medication
- Check the expiration date on the pen
- The solution should be clear and colorless—do not use if cloudy, discolored, or contains particles
What You’ll Need
- Your Ozempic pen
- A new, unused NovoFine or NovoTwist needle (included with prescription)
- Alcohol swab
- Sharps disposal container (for used needles)
Choose Your Day and Time
Ozempic is a once-weekly injection. Pick a day that works consistently for you each week. Many patients choose:
- Friday evening: Any early side effects occur during the weekend
- Sunday evening: Sets the tone for the week ahead
- The specific time of day doesn’t matter medically—choose what’s convenient and set a recurring alarm
Note: Your first dose will be 0.25 mg—the lowest dose, designed for your body to adjust to the medication. This is not a therapeutic dose for diabetes or weight loss; it’s the initiation dose that minimizes side effects.
Preparing the Pen
Follow these steps carefully. The Ozempic pen is a pre-filled, multi-dose device:
- Remove the pen from the refrigerator and let it come to room temperature for a few minutes (optional but can reduce discomfort)
- Wash your hands thoroughly with soap and water
- Remove the pen cap and check the solution window—confirm it’s clear and colorless
- Attach a new needle:
- Tear off the paper tab from the outer needle cap
- Push the needle straight onto the pen and twist until snug
- Remove the outer needle cap (keep it—you’ll need it after injection)
- Remove the inner needle cap and discard it
- Check the flow (first use only):
- Turn the dose selector to the flow check symbol (shown in your pen’s instruction guide)
- Hold the pen with the needle pointing up
- Press and hold the dose button until the dose counter returns to 0
- A drop of medication should appear at the needle tip
- If no drop appears, repeat up to 6 times. If still no drop, do not use the pen
- Dial your dose—turn the dose selector to 0.25 mg for your first injection
Giving the Injection
Choose Your Injection Site
Three areas are approved:
- Abdomen: At least 2 inches from belly button (most popular—easy access, ample tissue)
- Front of thigh: Upper outer area, midway between knee and hip
- Upper arm: Back of arm, between shoulder and elbow (may need assistance)
Step-by-Step Injection
- Clean the injection site with an alcohol swab and let it dry completely
- Pinch a fold of skin at the injection site (optional—some patients prefer to inject without pinching)
- Insert the needle at a 90-degree angle straight into the skin in one smooth motion
- Press and hold the dose button until the dose counter shows 0
- Keep the button pressed and count slowly to 6—this ensures the full dose is delivered
- Remove the needle from the skin in one smooth motion
- Recap the needle using the outer cap (never the inner cap) and unscrew it from the pen
- Dispose of the needle in your sharps container
- Replace the pen cap and store the pen according to storage guidelines
The counting to 6 after the dose counter reaches 0 is critical. Releasing the button too early means you won't receive the full dose. Six seconds ensures complete delivery.
Immediately After Your Injection
- Small drop of blood: Completely normal. Apply gentle pressure with a cotton ball—do not rub
- Slight stinging or burning: Normal and brief. Cold medication from the fridge can increase this—letting the pen warm to room temperature first helps
- No sensation at all: Also normal. The needle is very thin (32 gauge)—many patients don’t feel it
- Injection site redness or small bump: Common, harmless, and resolves within hours
What to Expect in the First Week
Your body is adjusting to a new medication. Here’s what patients commonly experience at the 0.25 mg starting dose:
| Day | Common Experience | What to Do |
|---|---|---|
| Day 1 | No noticeable effects for most patients | Eat normally; stay hydrated |
| Days 2–3 | Mild appetite reduction; possible slight nausea | Eat smaller meals; avoid greasy foods |
| Days 3–5 | Appetite suppression becomes more noticeable | Focus on protein; don’t skip meals entirely |
| Days 5–7 | Side effects (if any) begin to stabilize | Maintain routine; prepare for next week’s dose |
Reality check: At 0.25 mg, many patients feel very little. This dose is about adaptation, not results. Significant appetite changes and weight loss typically begin at the 0.5 mg dose and increase with further titration.
Pro tip: Start a simple journal noting your appetite, any side effects, meals, and how you feel each day. This information is valuable for your provider at follow-up appointments and helps track patterns.
Common First-Time Mistakes
- Not counting to 6: The most frequent error. Releasing the button early means incomplete dosing
- Injecting through clothing: Always inject into clean, bare skin
- Same injection spot every week: Rotate sites to prevent tissue hardening
- Forgetting to do the flow check: First use of a new pen requires confirming flow before dialing your dose
- Reusing needles: Always use a new needle for each injection. Reused needles are duller, increase infection risk, and may affect dose accuracy
- Skipping meals entirely: Even though appetite is reduced, your body needs nutrition. Never go more than 4–5 waking hours without eating something
Boxed warning — thyroid C-cell tumors: GLP-1 receptor agonists (semaglutide, tirzepatide, liraglutide) carry an FDA boxed warning for thyroid C-cell tumors observed in rodent studies. They are contraindicated in patients with a personal or family history of medullary thyroid carcinoma (MTC) or Multiple Endocrine Neoplasia syndrome type 2 (MEN2). Tell your provider immediately if you notice a lump in your neck, difficulty swallowing, or persistent hoarseness.
