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Drug companion protocol

AOD-9604

Prescription only
Synthetic peptide (GH fragment)

A synthetic fragment of human growth hormone (hGH176-191) investigated for its potential effects on fat metabolism.

Quickstart Highlights

Drug class
Synthetic peptide (GH fragment)
Route
Subcutaneous injection
Schedule
Research compound; not approved for human therapeutic use
Evidence score
15

Quickstart highlights

  • 💉Subcutaneous injection
  • 🔬Synthetic peptide (GH fragment)
  • 📋Prescription required

How this works

Mechanism of action and pharmacokinetic profile from published data.

AOD-9604 is a synthetic 16-amino-acid fragment of human growth hormone (hGH), corresponding to residues 176–191 of the hGH sequence. In preclinical studies, it demonstrated fat-mobilising (lipolytic) effects without the growth-promoting and insulin-resistance effects of the full hGH molecule. In Australia, AOD-9604 was briefly listed as a food ingredient before the TGA reviewed its classification and removed it from the food ingredients register. Human clinical trial evidence is limited: early Phase 2 trials in obesity showed modest body-weight effects, and the development programme was discontinued before Phase 3 completion.

Time to peak (Tmax)
Not characterised from published human PK studies.
Clearance
Proteolytic degradation expected; no regulatory-standard PK profile exists.
Elimination half-life
Not formally established. Phase 1/2 trial data suggest a short plasma half-life consistent with a small peptide.
Bioavailability
Phase 2 trials used oral and subcutaneous routes. Oral bioavailability of intact peptide is expected to be low; trial data are not publicly reported in sufficient detail.

Clinical Benefits & Side Effects

Observed outcomes, adverse effects, and lifecycle considerations from published trial data.

Benefits

Week 0

No approved human dosing protocol exists

AOD-9604 development as a weight-management drug was discontinued before completing Phase 3. There is no approved dose, schedule, or monitoring protocol. Human trial data from Phase 2 obesity studies showed modest effects that were not compelling enough to advance.

Week 1

Getting started and finding your footing

This is your very first week, and the most important thing right now is simply showing up and building the habit of your injection routine. Your body is being introduced to something new, so don't be surprised if you notice mild redness or tenderness at the injection site — this is very common. There are unlikely to be any visible physical changes yet, and that's completely normal; this week is all about starting well.

Week 2

Settling into your injection routine

By now your injection technique is likely feeling a little more familiar, even if it still feels a bit daunting. Some people notice mild fatigue or a subtle change in appetite around this time, while others feel no different at all — both are normal. Keep your expectations grounded; meaningful changes in body composition take time, and consistency now is what lays the foundation.

Week 3

Staying consistent through the early stage

Week three can be one of the trickier weeks — you're past the novelty of starting but results aren't visible yet, which can feel discouraging. Some people report mild gastrointestinal discomfort, such as nausea or bloating, particularly around their injection window. Stick with it, keep your hydration and nutrition dialled in, and remember that what's happening right now may not be visible but it matters.

Week 4

Completing your first month — a real milestone

Finishing your first four weeks is genuinely worth acknowledging — building any new health habit is hard, and you've done it. Nausea or mild digestive sensitivity may still come and go, especially on injection days, and that's still within the normal range of experiences at this stage. You might not see dramatic changes in the mirror yet, but your consistency is doing real work.

Week 5

Dose adjustment may begin — stay the course

If your prescriber has recommended a dose adjustment this week, you may notice side effects like nausea or fatigue becoming slightly more noticeable again as your body adapts — this often settles within a few days. Some people begin to notice a subtle shift in appetite or food cravings around this time. Follow your prescriber's instructions carefully and report any concerns rather than adjusting things on your own.

Week 6

Appetite changes becoming more noticeable

Many people start to notice they feel satisfied with smaller portions or find that certain foods are less appealing than they used to be. This is a good opportunity to be intentional about what you're eating — leaning into protein-rich, nutritious foods will help your body make the most of these changes. If nausea is still a factor, small, frequent meals are often much easier to manage than large ones.

Week 7

Building momentum with new eating patterns

By week seven, many people find their new eating rhythm is beginning to feel more natural and less forced. It's worth checking in with yourself about energy levels, sleep quality, and how your clothes are fitting — these non-scale markers can be really encouraging when the number on the scales feels slow to move. Keep up your movement routine and be kind to yourself on harder days.

Lifecycle factors

The development programme was discontinued

AOD-9604 completed Phase 2 obesity trials but was not taken to Phase 3 by its developer. This is not the same as being proven safe and effective — it means the evidence threshold for a serious weight-management medicine was not met.

TGA food-ingredient classification was revoked

AOD-9604 was briefly listed in Australia as a food ingredient. The TGA reviewed its classification and removed it from the food ingredients register because it did not meet the criteria. It is not a food ingredient and it is not a licensed medicine.

Store your compound correctly and check it before use

Follow your prescriber's instructions for storage — most compounded peptides need to be kept refrigerated and away from light. Before each use, visually inspect the solution: it should be clear and free of particles or discolouration. If anything looks off, don't use it — contact your prescriber or the compounding pharmacy. Never use a preparation past its expiry date or if it has been stored incorrectly.

Keep a simple symptom log to share with your prescriber

Take 60 seconds after each injection to jot down a quick note — what time you injected, how you felt in the hours after, any nausea, fatigue, or injection-site reactions. Even a note in your phone's notes app works perfectly. This kind of simple log makes your check-in conversations with your prescriber far more useful and means nothing gets forgotten between appointments.

Important note

This content is intended for therapeutic educational purposes only and does not constitute medical advice, diagnosis, or treatment. All information presented is based on published clinical trial data. Always follow your prescriber's instructions.

Nutrition & practical guidance

Food, hydration, and adherence tips compiled from trial data and clinical companion content.

Food and hydration

✅ Prefer

Lean protein — chicken breast, turkey, tinned tuna, eggsLow-fat Greek yoghurt and cottage cheeseNon-starchy vegetables — leafy greens, broccoli, zucchini, capsicumWholegrains — oats, brown rice, wholemeal breadOily fish — salmon, sardines, mackerel

⚠️ Limit

Fried and deep-fried foods — hot chips, fried chicken, spring rollsHighly processed snack foods — chips, crackers, biscuitsSugary drinks — soft drinks, fruit juice, flavoured milk, energy drinksHigh-sugar desserts and confectionery — lollies, cakes, pastries, ice cream

❌ Avoid

Do not use with active cancer treatment without oncologist knowledgeAlcohol — beer, wine, spirits

💧 Hydrate

Stay hydrated during any injectable use

Adherence tips

administration

Rotate your injection sites consistently

Inject into the subcutaneous tissue of your abdomen, thigh, or upper arm as directed by your prescriber, and rotate between spots each time to reduce the chance of localised irritation or lumps under the skin. A simple way to do this is to mentally divide your abdomen into a grid and work your way around it. Keep each new injection site at least 1–2 cm away from the last. Follow your prescriber's instructions on technique and site selection.

administration

Let your injection warm to room temperature first

If your compound is stored in the fridge, take it out 10–15 minutes before injecting to allow it to reach room temperature. Injecting a cold solution can increase discomfort and stinging at the site. Never use a microwave or hot water to speed this up — simply leave it on the bench while you prepare everything else.

timing

Inject at the same time each day to build your habit

Choosing a consistent time for your injection — many people prefer first thing in the morning before breakfast — makes it much easier to remember and helps your body adapt to a predictable rhythm. Set a phone reminder with a label like 'morning routine' until it becomes automatic. Follow your prescriber's instructions about the optimal timing for your individual situation.

timing

Keep injection days lighter on the plate

Many people find that eating lighter, low-fat meals in the few hours before and after their injection noticeably reduces nausea. Think a small bowl of oats with fruit for breakfast, or a piece of wholegrain toast with a boiled egg, rather than a big cooked meal. You can eat more normally once you're confident how your body responds.

administration

Disclose to your doctor

Any unregulated compound should be declared to your prescriber — particularly relevant if you are using other medicines, planning surgery, or being investigated for a health condition.

hydration

Start every morning with a full glass of water

Before your morning coffee, before breakfast, before anything — drink a 250–300 mL glass of water as the very first thing you do each day. This simple habit kickstarts your hydration and has been shown to support appetite regulation. Keep a large (750 mL–1 L) bottle on your desk or bench as a visual reminder to keep drinking throughout the day.

hydration

Sip ginger or peppermint tea when nausea hits

Rather than reaching for food when you feel queasy, try sipping a warm cup of ginger or peppermint herbal tea — both are widely available at Australian supermarkets and have a well-established reputation for settling an unsettled stomach. Drink it slowly over 15–20 minutes. Keeping tea bags in your bag or at your desk means you're never caught without a go-to nausea remedy.

nutrition

Aim for 25–35g of protein at every main meal

When your appetite is reduced, it's easy to undereat protein without realising it — and protein is especially important for preserving muscle while your body composition is changing. Practically, 25–35g of protein looks like a 120–150g chicken breast, two eggs plus a tin of tuna, or a cup of Greek yoghurt with cottage cheese. Use the palm of your hand as a rough guide: one palm-sized serve of a protein-rich food per meal is a solid starting point.

nutrition

Eat small meals every 3–4 hours rather than skipping

When appetite is suppressed, skipping meals might feel natural — but going too long without eating can worsen nausea, drop your energy, and make it harder to meet your nutritional needs. Set a gentle alarm to eat something small every 3–4 hours, even if it's just a small tub of yoghurt, a handful of nuts, or a piece of fruit. Keeping easy, nourishing snacks visible and accessible at home makes this much easier to stick to.

exercise

Start with 20–30 minute walks and build from there

You don't need to overhaul your exercise routine all at once — even a 20–30 minute walk most days is a meaningful contribution to your goals and is well-tolerated by most people in the early weeks. Aim to gradually build toward 150 minutes of moderate movement per week, as per Australian physical activity guidelines. If you feel fatigued on injection days, it's fine to make those your lighter days and move more on others.

exercise

Include two resistance training sessions per week

Resistance or strength training — whether that's weights, bodyweight exercises, or resistance bands — is one of the most effective ways to support lean muscle while working toward body composition changes. Two sessions per week of 30–45 minutes is a realistic and achievable target for most people. If you're new to strength training, a session with a qualified exercise physiologist or personal trainer can help you start safely and confidently.

sleep

Protect 7–9 hours of sleep as part of your programme

Sleep quality has a significant and direct impact on hunger hormones, energy levels, and the body's ability to manage fat metabolism — so it's not optional. Aim for 7–9 hours per night and try to keep your wake and sleep times consistent, even on weekends. If you're finding sleep difficult, reducing screen exposure in the hour before bed and keeping your bedroom cool (around 18–20°C) are two changes that make a measurable difference for many people.

mindset

Track non-scale wins alongside your weight

The number on the scale is just one data point, and it doesn't always reflect what's actually happening in your body — especially in the early weeks. Keep a simple weekly note of other markers: how your clothes fit, your energy at 3pm, how far you walked, your sleep quality, or how you handled a stressful day around food. These 'non-scale victories' are often more motivating and more meaningful than a number, and they help you see the bigger picture when weight loss is slower than you'd like.

mindset

Be honest about hard weeks — they don't erase progress

There will be weeks where you feel lousy, where nausea gets the better of you, or where you eat in a way that doesn't align with your goals. This is part of the process for almost everyone, and a difficult week doesn't undo what came before it. What matters most is how quickly you return to your routine — not whether you had a perfect run. Try keeping a brief one-line journal entry each day: even 'today was hard but I'm still here' counts as progress.

Safety and interactions

Share this information with your prescriber for personalised care decisions.

Who should not take this

AOD-9604 is not approved by the TGA, FDA, MHRA, or EMA for any therapeutic use. The TGA reclassified and removed AOD-9604 from the food-ingredient register. It is not a licensed medicine. No formal contraindications have been established because no approved prescribing label exists. General cautions: • Active malignancy — GH-fragment peptides have theoretical growth-related concerns • Pregnancy or breastfeeding — not studied • Children and adolescents — not studied • Severe organ impairment — not studied Any use outside an approved clinical trial is unregulated.

Known interactions

  • Insulin and antidiabetic agents
    unknown

    Preclinical fat-metabolism effects could theoretically interact with insulin sensitivity. No human interaction data exist.

  • Growth hormone therapy
    unknown

    Structural overlap with hGH fragment — theoretical interaction unknown; not studied in combination.

Storage and handling

AOD-9604 is not a licensed pharmaceutical product. It is sold as a research chemical or compounded preparation. No regulatory storage standards apply. If handling a research preparation: • Lyophilised powder: store at −20°C or cooler; avoid repeated freeze-thaw cycles. • Reconstituted solution: store at 2–8°C, use promptly; stability is not formally validated. • Protect from light. These are general peptide research chemical guidelines — not TGA-approved storage instructions.

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