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PeptideGLP-1Well-studiedGLP-1 Agonist

Semaglutide (Ozempic/Wegovy)

GLP-1 agonist

Also known as Semaglutide

Typical dose

0.25–2.4 mg weekly

once weekly · SubQ · titrate over ~16 wks

Half-life

~7 days

What is Semaglutide (Ozempic/Wegovy)?

GLP-1 receptor agonist. Reduces appetite and slows gastric emptying. FDA-approved for diabetes and obesity.

How Semaglutide (Ozempic/Wegovy) works

Binds GLP-1 receptors in the hypothalamus, pancreas, and gut to suppress appetite, slow gastric emptying, enhance insulin secretion, and reduce glucagon — producing sustained caloric deficit.

Benefits & uses

  • Weight loss
  • Blood sugar control
  • Cardiovascular protection
  • Appetite suppression
  • Significant weight loss (~15% in trials)
  • Strong blood-sugar control
  • Appetite reduction
  • Cardiovascular benefit (established)

Common uses: Weight loss, appetite control, blood glucose, cardiovascular risk reduction.

Semaglutide (Ozempic/Wegovy) dosage

Typical dose
Typical: start 0.25 mg/week SubQ × 4 weeks, then 0.5 → 1.0 → 1.7 → 2.4 mg/week. Once weekly.
Protocol notes
Start 0.25mg/week, titrate up over 16-20 weeks to 1-2.4mg/week. Titrate slowly to minimize GI side effects.

Semaglutide (Ozempic/Wegovy) half-life

~7 days (once-weekly dosing)

Semaglutide (Ozempic/Wegovy) side effects

Nausea, diarrhea, vomiting, constipation. Pancreatitis risk. Thyroid cancer concern (animal data).

  • Nausea (very common initially)
  • Diarrhea and vomiting
  • Constipation
  • Pancreatitis (rare but serious — stop if severe abdominal pain)
  • Thyroid C-cell tumor risk (animal data, avoid with personal/family MTC history)
  • Gallbladder disease with rapid weight loss
  • Injection site reactions
  • Nausea (~44%)
  • Vomiting (~25%)
  • Diarrhea
  • Fatigue
  • Injection-site reactions

Warnings & monitoring

  • Prescription only
  • GI side effects common — nausea, vomiting, diarrhea
  • Black box warning: thyroid C-cell tumors in rodents
  • Contraindicated in personal/family history of MTC
  • Pancreatitis risk
  • Muscle loss risk — ensure adequate protein + resistance training
  • Titrate slowly — GI effects mostly first ~20 weeks, cause ~4% to discontinue
  • Class risks: pancreatitis, gallbladder disease, gastroparesis
  • Boxed warning: medullary thyroid carcinoma / MEN2 — contraindicated with that history
  • Not for pregnancy

Preparation & storage

Preparation
Mix a 5 mg vial with 2 mL bac water → 2,500 mcg/mL. A 0.25 mg dose = 0.1 mL = 10 units. Start 0.25 mg/week, titrate slowly.
Reconstitution
Reconstitute a 5 mg vial with 2 mL BAC water → 2.5 mg/mL. A 0.25 mg dose = 0.1 mL = 10 units on a U-100 syringe.
Storage
Refrigerate (2–8 °C). Once in use: up to 28 days at room temperature (below 30 °C). Protect from light and heat.

Semaglutide (Ozempic/Wegovy) interactions

  • with Retatrutide

    Avoid · severe

    Both are GLP-1 receptor agonists; combining them dramatically increases nausea, vomiting, and gastrointestinal distress with no meaningful additive benefit.

    Timing: Do not use concurrently under any circumstances

  • with Tirzepatide

    Avoid · severe

    Both are GLP-1 receptor agonists; concurrent use compounds GI toxicity and pancreatic stress with no additive efficacy.

    Timing: Never combine

  • with Tirzepatide

    Avoid · severe

    These are both GLP-1 agonists from the same drug class; combining them offers no additional efficacy but substantially increases the risk of pancreatitis and GI complications.

    Timing: Do not use concurrently; choose one agent

  • with AOD-9604

    Caution · moderate

    AOD-9604 is a GH fragment claimed to stimulate lipolysis; semaglutide reduces caloric intake via GLP-1 agonism. Stacking multiple fat-loss mechanisms may cause excessive caloric deficit and muscle loss.

    Timing: Avoid combining multiple fat-loss agents without medical supervision

  • with AOD-9604

    Caution · mild

    Both compounds promote fat loss via different mechanisms (lipolysis vs appetite suppression) — additive effect can cause excessive caloric restriction and muscle catabolism.

    Timing: Start semaglutide dose at the lowest level when combining; monitor appetite closely

  • with Berberine

    Caution · mild

    Both have hypoglycemic and GI effects; combined dosing amplifies nausea and risk of low glucose in lean users.

    Timing: Lower berberine to 500mg/day when on GLP-1

  • with HGH Frag 176-191

    Caution · mild

    Both promote fat loss — HGH Frag via lipolysis inhibition, semaglutide via appetite suppression. Additive fat-loss effect is useful for cutting but risks excessive caloric restriction and lean mass loss.

    Timing: Monitor appetite and caloric intake closely; start HGH Frag at lowest dose

  • with Insulin

    Caution · severe

    Both semaglutide and insulin lower blood glucose. Combining them without precise medical dosing guidance carries serious hypoglycemia risk. This combination requires a treating endocrinologist — not for unsupervised use.

    Timing: Never combine without continuous glucose monitoring and medical supervision

  • with Peptide YY

    Caution · moderate

    Both compounds suppress appetite through different mechanisms. Combining them may cause excessive caloric restriction, nutritional deficiencies, and muscle wasting.

    Timing: Avoid stacking without medical guidance — additive appetite suppression

  • with Tesofensine

    Caution · moderate

    Tesofensine raises BP/HR via NE/DA reuptake inhibition; combined with GLP-1 anorexia, can drive excessive lean mass loss and cardiovascular strain.

    Timing: Do not initiate simultaneously; separate by 4+ weeks if cycling

  • with 5-Amino-1MQ

    Compatible

    5-Amino-1MQ activates AMPK and shifts NAD+ flux toward lipolysis — complementary to GLP-1 driven appetite suppression.

    Timing: Stack daily during fat-loss phase

  • with BPC-157

    Compatible

    BPC-157 helps with the gastric emptying delay and gut irritation common during semaglutide dose escalation.

    Timing: BPC-157 250-500mcg daily during GLP-1 protocol

  • with Testosterone

    Compatible · low

    Semaglutide used for weight management alongside TRT. Testosterone helps preserve muscle mass during weight loss induced by semaglutide-driven caloric restriction.

    Timing: GLP-1 agonist weekly; testosterone per TRT protocol

Commonly stacked with

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More GLP-1 Agonist

For research and educational purposes only. This page is not medical advice and is not a recommendation to use any compound. Many compounds listed are not approved for human use, and some are prescription-only or controlled in your jurisdiction. Dosing figures are reference or observational reports. Talk to a qualified healthcare provider before starting, stopping, or changing anything. Protokol is for tracking purposes only.