What are weight loss injections?
Weight loss injections are injectable medications based on GLP-1 receptor agonists (and dual GIP/GLP-1 agonists) that a doctor prescribes to reduce weight in obesity and overweight. The best known are Mounjaro (tirzepatide), Ozempic (semaglutide), Biopatid (tirzepatide), and Retatrutide. The medication is injected under the skin once a week using a pre-filled pen. The active substance mimics the natural satiety hormone: it slows gastric emptying and reduces appetite and food cravings, so a person naturally eats less. In the SURMOUNT and STEP clinical trials, patients lost between 15% and 22.5% of body weight over 68–72 weeks. Semaglutide is approved by the FDA and EMA for treating obesity, and tirzepatide for weight management and type 2 diabetes. Weight loss injections are not a «magic shot»: they work together with dietary change and under the supervision of a specialist who selects the dose and tracks progress.
What are weight loss injections called?
"Weight loss injections" is the everyday name for a whole class of products. Here is what they are actually called and how they differ:
| Name | Active substance | What to know |
|---|---|---|
| Mounjaro | Tirzepatide (GIP + GLP-1) | −22.5% body weight over 72 weeks (SURMOUNT-1). Available at DOZA |
| Ozempic | Semaglutide (GLP-1) | −14.9% over 68 weeks (STEP-1). Available at DOZA |
| Wegovy | Semaglutide 2.4 mg | Weight-management dose of semaglutide, −16.9% among trial completers (STEP-1). Not officially supplied to Ukraine |
| Saxenda | Liraglutide | Previous-generation daily injection, −8.0% over 56 weeks (SCALE) |
| Biopatid | Tirzepatide | Same molecule as Mounjaro; no trials of its own. Available at DOZA |
| Retatrutide | GIP + GLP-1 + glucagon | −28.3% over 80 weeks (Phase 3 TRIUMPH-1, topline 2026). Not yet FDA/EMA approved. Available at DOZA |
Which injections help with weight loss?
Modern injectable products for weight loss belong to the GLP-1 agonist class — they mimic your body's natural satiety hormone.
Mounjaro
Most Effective
Tirzepatide · GLP-1 + GIP
Ozempic
Classic
Semaglutide · GLP-1
Retatrutide
New Generation
Retatrutide · GLP-1 + GIP + glucagon
Comparing weight loss injections
Comparison table of all available GLP-1 products in Ukraine
| Parameter | Mounjaro | Ozempic | Retatrutide |
|---|---|---|---|
| Active substance | Tirzepatide | Semaglutide | Retatrutide |
| Mechanism of action | GLP-1 + GIP | GLP-1 | GLP-1 + GIP + glucagon |
| Weight loss | up to -22.5% | up to -15% | up to -28.3% |
| Injection frequency | Once/week | Once/week | Once/week |
| Price | from 2,500 ₴/dose | from 8,800 ₴/pen | from 15,500 ₴/pen |
* Weight loss data from clinical trials: SURMOUNT-1 (tirzepatide, −22.5% over 72 weeks), STEP-1 (semaglutide, −14.9% over 68 weeks). Biopatid has no clinical trials of its own — tirzepatide molecule data is shown. Individual results may vary.
What works better: injections, pills, or diet?
According to clinical trials, injectable GLP-1 medications deliver the largest and most durable weight loss: 15–22.5% of body weight over 68–72 weeks (SURMOUNT-1, STEP). Pills (orlistat, oral semaglutide) are less effective, while diet alone yields a 5–10% loss — but ~80% of people regain the weight within 1–5 years due to hormonal adaptation: rising ghrelin and falling leptin.
| Method | Weight loss | Mechanism | Result retention |
|---|---|---|---|
| GLP-1 injections (Mounjaro, Ozempic) | −15…−22.5% over 68–72 weeks | Reduce appetite hormonally | High — appetite stays controlled through the course |
| Pills (orlistat, oral semaglutide) | −3…−8% over 6–12 months | Block fat absorption or weaker GLP-1 effect | Moderate — weaker effect than injectables |
| Calorie-deficit diet alone | −5…−10% over 6–12 months | Calorie deficit without appetite correction | Low — ~80% regain the weight within 1–5 years |
Data: SURMOUNT-1 (NEJM 2022), STEP 1 (NEJM 2021), Anderson et al. (Am J Clin Nutr). The best results come from a combination: a GLP-1 medication + a balanced menu + specialist supervision.
How much do weight loss injections cost in Ukraine?
The cost of weight loss injections in Ukraine depends on the product, dose and course length. A monthly Mounjaro (tirzepatide) program at DOZA starts from 8,000 ₴, the per-dose format from 2,500 ₴ for the 2.5 mg starting dose. Biopatid (tirzepatide) — from 3,000 ₴ per month. Ozempic (semaglutide) — from 8,800 ₴ per 0.25 mg pen. Retatrutide — from 15,500 ₴ per pen. Test doses start from 1,500 ₴. The price includes the product itself, specialist support and cold-chain delivery, since GLP-1 must be stored at 2–8 °C. The starting dose is minimal, so the first months cost less than maintenance doses. The exact program cost is calculated individually after a free consultation — it depends on your weight goals, the chosen product and the dose-titration schedule.
How weight loss injections work
GLP-1 agonists mimic your body's natural hormone responsible for feeling full
1Appetite reduction
After eating, your intestine produces the hormone GLP-1, sending your brain a "I'm full" signal. In people with excess weight, this signal is weakened. Injectable GLP-1 agonists enhance it — you feel full faster and eat less without effort.
2Slower digestion
GLP-1 slows stomach emptying — food is digested more slowly, and you feel full longer after every meal. This natural mechanism helps reduce portions without starvation.
3Accelerated fat metabolism
Dual-action products (Mounjaro) and triple-action (Retatrutide) additionally affect fat metabolism via GIP and glucagon receptors. This provides more intensive burning of fat reserves — which is why they show the highest results in trials.
Important: weight loss injections aren't a "magic pill." They work with your body, helping to form healthy eating habits. A DOZA specialist selects the optimal product and dose individually, monitors progress, and adjusts the program at every stage.
Where and how to inject weight loss shots?
Weight loss injections are given subcutaneously — into the fatty tissue of the abdomen (about 5 cm from the navel), the front of the thigh, or the outer upper arm. This is not an intramuscular or intravenous injection, so the procedure is almost painless and the needle is very thin and short. The medication is injected once a week, preferably on the same day; the time of day and meals do not matter. Modern medications (Mounjaro KwikPen, Ozempic FlexTouch) are pre-filled pens with a preset dose, so you do not need to draw up the medicine manually: just place the pen against the skin and press the button. The injection site is rotated weekly to avoid lumps. The pen should be stored in the refrigerator at 2–8 °C. A DOZA specialist helps with the first shot and explains the technique during the consultation; afterwards most clients inject themselves at home. The dose is increased gradually following a titration schedule to reduce side effects.
Who can use weight loss injections
GLP-1 products are suitable for adults with excess weight or obesity. A specialist consultation is important before starting.
✅ Recommended
- ✓BMI 30 and above (obesity)
- ✓BMI 27+ with related conditions (type 2 diabetes, hypertension)
- ✓Unsuccessful diet attempts
- ✓Age 18+
⚠️ Consultation needed
- !Pregnancy or breastfeeding
- !Thyroid conditions
- !History of pancreatitis
- !Taking other diabetes products
Not sure if weight loss injections are right for you? A DOZA specialist will assess your situation for free.
📊 Calculate your BMI →Who prescribes weight loss injections?
Injectable weight-loss products are a prescription class: officially they are prescribed by an endocrinologist or family doctor after assessing contraindications. At the same time, tirzepatide is not in the Ukrainian State Register of Medicines, so a classic "pharmacy prescription" for it does not exist. DOZA operates as a program service: a free screening consultation happens before any sale, a specialist sets the starting dose per the manufacturer schedule and manages titration throughout the program. If screening reveals red flags — endocrine pathology, serious GI complaints, concerning lab results — we refer to an in-person doctor and do not sell the product.
How to get weight loss injections from DOZA
3 simple steps from consultation to results
Step 01
Consultation
Message a specialist on Telegram. They'll assess your goals, weight, history, and select the optimal product and dose.
Step 02
Program selection
The specialist will create an individual program: Mounjaro, Ozempic, Biopatid, or Retatrutide — depending on your needs.
Step 03
Program start
Receive the product with delivery across Ukraine (cold chain 2-8°C). 24/7 specialist support throughout the entire program.
Response in 5 min · No obligations
Learn more about each product
Sources
Clinical data on this page comes from peer-reviewed publications:
1. SURMOUNT-1 — tirzepatide 15 mg for obesity
-22.5% body weight over 72 weeks, 2539 participants — NEJM 2022 · DOI: 10.1056/NEJMoa2206038
2. STEP-1 — semaglutide 2.4 mg for obesity
-14.9% body weight over 68 weeks, 1961 participants — NEJM 2021 · DOI: 10.1056/NEJMoa2032183
3. SCALE — liraglutide 3.0 mg (Saxenda)
-8.0% body weight over 56 weeks, 3731 participants — NEJM 2015 · DOI: 10.1056/NEJMoa1411892
4. Retatrutide phase 2 — triple agonist
-24.2% body weight over 48 weeks, 338 participants — NEJM 2023 · DOI: 10.1056/NEJMoa2301972
5. TRIUMPH-1 — retatrutide 12 mg, Phase 3
-28.3% body weight over 80 weeks, 2339 participants — topline, ADA 2026 (full publication pending) · NCT05929066
Frequently asked
Questions about weight loss injections
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