Semaglutide
★ 98 FDA approvedSemaglutide (Ozempic, Wegovy)
GLP-1 agonist — weight loss and glycemic control
Fat LossAbout
A GLP-1 receptor agonist, FDA-approved for type 2 diabetes and obesity. One of the most effective weight-loss medications available.
Mechanism
Mimics GLP-1, increases insulin, suppresses glucagon, slows gastric emptying, reduces appetite.
Dosage
beginner
- Amount
- 0.25 mg
- Frequency
- 1x per week for 4 weeks
- Route
- SubQ
- Duration
- Titration phase
standard
- Amount
- 0.5 mg → 1.0 mg → 1.7 mg
- Frequency
- 1x per week, increasing every 4 weeks
- Route
- SubQ
- Duration
- 16+ weeks
advanced
- Amount
- 2.4 mg (max dose)
- Frequency
- 1x per week
- Route
- SubQ
- Duration
- Long-term (12+ months)
Same day each week. Timing relative to meals matters little.
Not cycled — long-term use. Taper gradually if discontinuing.
Reconstitution & Storage
Store refrigerated after reconstitution, 30 days.
Prescription product: refrigerated. Compounded: 2-8°C, 30-56 days after reconstitution.
Benefits
- • 15-20% weight loss (STEP trials)
- • Improved glycemic control
- • Lowered HbA1c
- • Reduced cardiovascular risk (SELECT trial)
- • Reduces appetite and 'food noise'
Side effects
- • Nausea (common initially)
- • Diarrhea / constipation
- • Reflux
- • Fatigue
- • Rare: gallstones, pancreatitis
Contraindications
- • Medullary thyroid carcinoma (history)
- • MEN 2 syndrome
- • Pregnancy
- • History of pancreatitis
Gender notes
Men
Same dose, same efficacy.
Women
Same dose. Discontinue at least 2 months before pregnancy. May reduce oral contraceptive efficacy.
Research
- STEP 1: Semaglutide 2.4 mg for obesity ↗
Landmark RCT, 1961 participants. 14.9% weight loss at 68 weeks vs 2.4% placebo.
New England Journal of Medicine · 2021
- SELECT Trial: Cardiovascular outcomes ↗
20% reduction in MACE (cardiovascular events) in obese patients without diabetes.
New England Journal of Medicine · 2023
Stacks well with
Track Semaglutide doses in the app
Built-in reconstitution calculator, dose log, and reminders. Free on Android.
Get on Google PlayEducational use only. Not medical advice. Many peptides shown are not FDA-approved and remain research compounds. Always consult a qualified healthcare provider.