Appetite Suppressants Australia 2025 – Best Options, Prescription vs OTC, How They Work & Safe Alternatives

By Dr. Sofia Miller, BPharm (Hons), MClinSci
Clinical Pharmacology Writer & Weight-Management Researcher

What Are Appetite Suppressants?

Appetite suppressants are medications or supplements that reduce hunger, curb cravings and help you maintain a calorie deficit for weight loss. They work by targeting the brain’s hunger signals, slowing digestion, increasing satiety or boosting metabolic hormones that regulate appetite.

In Australia, appetite suppressants fall into two categories:

1. Prescription medications – powerful, but with stronger side effects
2. Over-the-counter (OTC) supplements – accessible, natural-based and safer long-term

In 2025, appetite suppressants remain one of the most common weight-loss tools for Australians struggling with overeating, binge eating, emotional eating or constant hunger throughout the day.

Appetite Suppressants in Australia

Australia’s weight-loss market includes both prescription appetite suppressant medications and OTC products that support hunger control.

Prescription appetite suppressants in Australia include:

• Duromine (phentermine)
• Phentermine generic
• Metermine
• Phendimetrazine (limited availability, strict prescribing)

These require a doctor’s prescription and are usually given to adults with BMI over 30, or BMI 27+ with medical risks.

OTC appetite suppressants (non-prescription) include:

• PhenQ – Australia’s #1 non-prescription appetite suppressant in 2025
• Herbal blends containing fibre, chromium, caffeine, green tea or metabolism boosters

OTC options are preferred by people who do not qualify for a prescription or want something safer and long-term.

PhenQ – Best Appetite Suppressant in Australia 2025

PhenQ is the leading over-the-counter appetite suppressant in Australia in 2025 because it:

• requires no prescription
• is available online legally
• supports appetite suppression, fat burning, craving control, energy, and fat storage reduction
• has fewer side effects than phentermine or Duromine
• is safe for long-term use
• is widely reviewed and used by both men & women

Many Australians choose PhenQ after comparing it with Duromine or Metermine because they want similar appetite-control benefits without stimulant-related risks.

PhenQ Before & After Results

• 1 Month: Smaller appetite, fewer sugar and carb cravings
• 3 Months: Visible waist changes, reduced belly fat, steady weight loss
• 5 Months: Noticeable transformation in body shape

PhenQ is also frequently searched as:

• “best appetite suppressant Australia Chemist Warehouse”
• “chemist warehouse appetite suppressant alternative”

Since Chemist Warehouse does not stock PhenQ, Australians buy it conveniently online.

Prescription Weight Loss Medications in Australia

Prescription appetite suppressants are more aggressive, but carry risks.

1. Duromine (Phentermine)

• The most common appetite suppressant in Australia
• Contains phentermine, a strong stimulant
• Suppresses hunger and increases energy
• Side effects: insomnia, anxiety, fast heartbeat, dry mouth

2. Phentermine (Generic)

• Same active ingredient as Duromine
• Same benefits and risks
• Schedule 4 medication (doctor’s script required)

3. Metermine

• A brand of phentermine
• Long-release formulation
• Similar effect profile to Duromine

4. Phendimetrazine

• Less commonly prescribed in Australia
• Strong stimulant
• Higher risk of dependency
• Not recommended for long-term use

Important: All prescription appetite suppressants come with stronger side effects and legal prescribing guidelines.

Best Appetite Suppressant Pills (Ranked for 2025)

1. PhenQ — Best OTC Appetite Suppressant 2025 (No Prescription)

• Curbs hunger
• Cuts cravings
• Burns stored fat
• Prevents fat accumulation
• Improves energy & mood
• Safe for long-term use

2. Duromine (Prescription)

• Strong appetite suppression
• Rapid early weight loss
• High stimulant level
• 12-week limit

3. Metermine (Prescription)

• Long-release version
• Effective, but still stimulant-based

4. Phentermine (Prescription)

• Similar to Duromine
• Effective short-term, but high side effects

5. Phendimetrazine (Prescription)

• Rarely prescribed
• High dependency risk

Conclusion:
PhenQ is the best appetite suppressant in Australia for 2025 because it is effective AND available without a prescription.

How Do Appetite Suppressants Work?

Different medications and supplements suppress appetite using different mechanisms:

1. Boosting satiety hormones

Increases GLP-1, leptin or serotonin-like activity to reduce hunger.

2. Slowing gastric emptying

Makes your stomach stay fuller for longer. [research studies]

3. Reducing hunger signals

Targets the hypothalamus to reduce appetite. [facts]

4. Stabilising blood sugar

Prevents sugar crashes that trigger cravings.

5. Increasing metabolism

Some suppressants boost calorie burning.

PhenQ achieves these effects naturally, while medications do so through stimulant-based pathways.

Does Phentermine Burn Fat or Just Suppress Appetite?

Phentermine (Duromine/Metermine) primarily suppresses appetite, but it also:

• increases norepinephrine
• slightly boosts metabolism
• increases physical activity motivation

However, phentermine does not directly burn body fat.
It works because you eat less, not because it melts fat on its own.

PhenQ, on the other hand, includes actual fat-burning thermogenic ingredients PLUS appetite suppression.

How to Suppress Appetite Naturally (Without Medication)

You can reduce hunger using lifestyle changes:

Foods That Suppress Appetite:

• Eggs
• Oats
• High-protein meals
• Greek yogurt
• Avocado
• Almonds
• Lentils
• Vegetables high in fibre
• Water-rich foods [studies reference]

Habits That Reduce Hunger:

• Drink water before meals
• Eat high-protein breakfasts
• Sleep 7–8 hours
• Avoid sugar
• Choose high-fibre foods
• Reduce stress
• Eat slowly

These methods work beautifully with PhenQ.

How Can I Stop Being Hungry All the Time?

Constant hunger may come from:

• low protein intake
• dehydration
• lack of fibre
• poor sleep
• insulin spikes
• emotional eating
• restrictive dieting

To stop overeating:

1. Eat protein at every meal
2. Drink 2–3 litres of water
3. Take an OTC appetite suppressant like PhenQ
4. Avoid refined carbs [references]
5. Eat every 3–4 hours
6. Sleep well

Appetite Suppressant Chemist Warehouse – What You Need to Know

Chemist Warehouse does not sell:

❌ Duromine
❌ Phentermine
❌ Metermine
❌ PhenQ

Prescription meds are only dispensed with a doctor’s script.

For OTC appetite control Chemist Warehouse stocks only very mild herbal blends. Most Australians looking for a stronger, non-prescription appetite suppressant choose PhenQ online.

PhenQ – Best Chemist Warehouse Appetite Suppressant Alternative in 2025

Because Chemist Warehouse does not stock strong OTC appetite suppressants, PhenQ has become the most popular online alternative.

Reasons Australians choose it:

• Effective appetite control
• No prescription
• Gentle energy boost
• Reduces cravings
• Promotes fat burning
• Long-term safe
• Free worldwide shipping

Conclusion

Australia’s appetite suppressant options in 2025 fall into two categories: strong prescription medications (like Duromine, Metermine, phentermine) and accessible OTC supplements. While prescription drugs are powerful, they also carry significant risks and can only be used for short periods.

For long-term appetite control, weight-loss support and improved fat burning without a doctor’s script, PhenQ is the most recommended non-prescription appetite suppressant in Australia for 2025.

FAQ’s – Frequently Asked Questions

1. What is the best appetite suppressant in Australia in 2025?

PhenQ is the best OTC appetite suppressant in Australia in 2025 because it suppresses cravings, reduces appetite, boosts metabolism and requires no prescription.

2. Do I need a prescription for appetite suppressants in Australia?

Yes, medications like Duromine, Metermine, phentermine and Phendimetrazine require a prescription in Australia. PhenQ is available OTC without a script.

3. Does phentermine burn fat or just suppress appetite?

Phentermine primarily suppresses appetite. It does not directly burn fat; it helps weight loss because users eat less and maintain a calorie deficit.

4. What can I take instead of Duromine without a prescription?

PhenQ is the most popular non-prescription alternative in Australia, offering appetite suppression and fat-burning without stimulant-based side effects.

5. How can I naturally suppress appetite?

Eat high-protein meals, increase fibre, drink more water, manage stress, avoid sugar and use natural supplements like PhenQ that support satiety.

6. Are appetite suppressants sold at Chemist Warehouse?

Chemist Warehouse does not sell strong appetite suppressants like Duromine or PhenQ. Only mild herbal blends are available without a prescription.

7. What foods help suppress appetite?

Eggs, oats, Greek yogurt, avocado, almonds, lean proteins, lentils and high-fibre vegetables are excellent appetite-suppressing foods.

8. How do I stop being hungry all the time?

Eat balanced meals with protein, stay hydrated, sleep 7–8 hours, reduce sugar and take a safe OTC appetite suppressant like PhenQ to control cravings.

Disclaimer

This content is for educational purposes only and does not replace medical advice. Prescription medications like Duromine, phentermine, Metermine and Phendimetrazine must only be taken under a doctor’s supervision in Australia. Always consult a healthcare provider before starting any weight-loss medication or supplement.

Sofia Miller