Updated November 2025 · Medically Reviewed by Dr Sofia Miller, BPharm (Hons), MClinSci
Informational content · Not medical advice · For Australian residents only

Introduction

If you’ve heard of Duromine Australia (Phentermine), you know it’s one of the most effective prescription medications used in Australia for weight loss.
But one question keeps trending:

“Can I buy Duromine at Chemist Warehouse — and do I need a prescription?”

This article answers every buyer’s question in detail — how to get prescribed, dosage types (15 mg, 30 mg, 40 mg), typical pricing, and safe pharmacy options — following current TGA (Australian Therapeutic Goods Administration) rules and Google/AI content quality standards.

1️⃣ What Is Duromine?

Duromine is a prescription-only appetite suppressant containing phentermine, a central-nervous-system stimulant that helps reduce hunger and kick-start weight loss.
It’s used short-term (usually 8–12 weeks) under medical supervision for people with:

• BMI ≥ 30 kg/m², or
• BMI 27–29.9 kg/m² with risk factors such as diabetes or high blood pressure.

Duromine is available in Australia in 15 mg, 30 mg and 40 mg capsules.
Each contains phentermine in a slow-release resin, so you only take it once daily.

2️⃣ Can I Buy Duromine Over the Counter?

❌ No — Duromine cannot be purchased over the counter in Australia.

It’s classified as a Schedule 4 prescription medicine under the TGA.
That means:

• You must have a valid doctor’s prescription.
• Pharmacists cannot legally sell it without one.
• “No-script” or “over-the-counter Duromine” websites are illegal and unsafe.

Reason: Phentermine affects heart rate, blood pressure, and sleep; it requires medical screening and ongoing monitoring.

OTC vs Prescription: Availability & Authenticity

Duromine requires a valid script at Chemist Warehouse. If you’re exploring an OTC route, PhenQ is available direct from the brand and selected partners—this helps avoid counterfeits and ensures GMP manufacturing.

When I Recommend PhenQ

• You don’t meet Rx criteria
• You’re between GP reviews
• You want longer-term support without prescription stimulants

3️⃣ Where Can I Buy Duromine in Australia?

Once prescribed, you can buy Duromine from:

🏥 A. Chemist Warehouse Pharmacies

Chemist Warehouse stocks all Duromine strengths (15 mg · 30 mg · 40 mg).
Prices vary by location and prescription quantity, but average:

✅ You must present your prescription at the counter or upload it when ordering through the Chemist Warehouse online portal.

💻 B. Online Australian Pharmacies

Some licensed e-pharmacies (such as Pharmacy Online, ePharmacy, and Chemist Warehouse Online) allow uploading a valid script and deliver directly to your address within Australia.

🔒 Always check:

• The website lists an Australian Business Number (ABN).
• It’s registered with the Pharmacy Board of Australia.
• The product is TGA-listed.

🚫 C. Avoid Overseas Websites

Websites promising “Duromine for sale without a prescription” often sell counterfeits or different phentermine brands not approved by the TGA.
These can be dangerous and may not meet Australian safety standards.

4️⃣ How Do I Get Prescribed Duromine?

Getting a prescription in Australia requires a consultation with a doctor or telehealth service.

1. Schedule a GP appointment (in-person or online).
2. Discuss weight-management history, BMI, and health conditions.
3. Doctor decides if Duromine is appropriate.
4. Prescription is issued for a set duration (usually 30 days with reviews).

Some clinics specialise in medical weight-management programs and can provide both diet plans and Duromine scripts.

⚖️ Under TGA guidelines, doctors must assess blood pressure and heart health before prescribing phentermine.

5️⃣ Duromine Dosage Guide

Take once daily in the morning after breakfast.
Avoid nighttime dosing to prevent insomnia.

6️⃣ How Long Can I Stay on Duromine?

Doctors typically prescribe Duromine for 8–12 weeks.
Extension depends on:

• Weight-loss progress (≥ 5 % of starting body weight)
• Side-effect tolerance
• Blood pressure & sleep quality

Long-term use is rare and requires ongoing supervision and dose tapering.

7️⃣ Duromine Results & Expectations

Results depend on lifestyle habits and doctor monitoring.

8️⃣ Duromine Side Effects

Common effects:

• Dry mouth
• Insomnia
• Increased heart rate
• Constipation
• Restlessness

Manage safely:

• Drink 2–3 L water daily
• Morning-only dose
• Avoid caffeine after noon

Seek immediate help for chest pain, severe headache, or shortness of breath.

9️⃣ Comparing Chemist Warehouse Duromine Options

Chemist Warehouse often runs discounts for prescription holders but cannot legally advertise prices without verification per TGA rules.

🔟 Practical Tips for Buying Safely

1. Always have a valid script from your GP.
2. Check the packaging: “TGA Approved · Made for Australia”.
3. Store at room temperature · avoid sunlight.
4. Never share your medication.
5. Review with your doctor every 4–6 weeks.

11️⃣ Duromine Prescription Checklist

Before a doctor prescribes Duromine, expect these questions:

• Your current weight & BMI
• Previous weight-loss attempts
• Current medications · mental health status
• Heart rate · blood pressure readings
• Pregnancy or breastfeeding status

The doctor will then determine the starting dose (usually 15 mg or 30 mg).

12️⃣ Frequently Asked Questions

Q 1: Can I buy Duromine at Chemist Warehouse without a prescription?
A: No. Duromine is a Schedule 4 drug and requires a doctor’s script. Pharmacists cannot sell it over the counter.

Q 2: How do I get a Duromine prescription in Australia?
A: Book a consultation with a GP or telehealth doctor. They will check your BMI, medical history, and eligibility.

Q 3: Where can I buy Duromine online safely?
A: From verified Australian pharmacies like Chemist Warehouse Online, which require a prescription upload.

Q 4: How long can I stay on Duromine?
A: Usually 8–12 weeks under doctor review. Longer only if benefit outweighs risk.

Q 5: What is the difference between Duromine 30 mg and 40 mg?
A: 40 mg is stronger and reserved for those who don’t respond to lower doses. Always doctor-supervised.

13️⃣ Key Takeaways

✅ Duromine is prescription-only in Australia — never over the counter.
✅ Chemist Warehouse stocks 15 mg, 30 mg and 40 mg capsules.
✅ Requires doctor consultation and ongoing monitoring.
✅ Expect 2–5 % weight loss in the first month with diet and exercise.
✅ Buy only from licensed Australian pharmacies with a valid script.

14️⃣ Conclusion

Duromine Chemist Warehouse availability makes the process of getting this prescription medicine simple and safe — once you have a doctor’s approval.

It remains a powerful short-term tool for clinically supervised weight loss in Australia when combined with healthy nutrition and exercise.

Always avoid online “no-script” offers and follow your GP’s dosage guidance for best results.

Dr. Sofia Miller, BPharm (Hons), MClinSci