GLP-1 weight loss medications can be a genuinely effective tool — when it’s the right tool prescribed for the right patient with real support around it. We offer honest, specialist guidance about how these medications work, who they suit, the results patients can expect, side effects, cost, and when medication may be best used alone or alongside other treatment options.
Weight loss medications Perth — medical weight loss, guided by specialists.
Specialist weight loss care guided by Dr Andrew Kiyingi and his specialist team of weight loss doctors.
Considering weight loss medication in Perth?
Before you start GLP-1 treatment — this is worth reading.

Perhaps you are considering GLP-1 medication such as Ozempic or Mounjaro after struggling with weight, health concerns, or repeated dieting. If that is where you are, you are not failing — you may simply need the right medical support.

GLP-1 medications work by helping reduce appetite and improve fullness signals. For many patients, they can support meaningful weight loss — but they need the right expectations, medical review, and a plan that is tailored to you.

The right treatment plan can mean safer prescribing, better results, and ongoing support. The team at BMI Specialist Clinics is here to understand the full picture and guide you toward what is safest and most effective for your situation.
What are GLP-1 weight loss medications — and how do they actually work?
GLP-1 stands for glucagon-like peptide-1 — a hormone your gut naturally releases after eating. GLP-1 medications mimic this hormone, acting on the body in three connected ways. Most are taken as a simple once-weekly injection with a pre-filled pen; the dose starts low and increases gradually over weeks to months.


Appetite quietens
The medication acts on appetite centres in the brain, reducing hunger and the constant background ‘food noise’ many patients describe. Smaller portions genuinely satisfy.

Fullness lasts longer
Stomach emptying slows, so meals keep you comfortable for hours rather than minutes. Snacking and grazing naturally decrease without a fight.

Blood sugar steadies
Insulin release improves in response to food, helping regulate blood sugar. This is why the same medication class is also used to treat type 2 diabetes.

Weight reduces — while treated
Together, these effects can help patients lose a meaningful amount of weight over time. Many people lose around 10–20% of their total body weight over 12–18 months while staying on treatment, especially when it is paired with proper support.
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How GLP-1 medication fits your journey at BMI Specialist Clinics
Most weight loss clinics can offer you one thing. Because Dr Kiyingi’s programme spans medication, surgery, endoscopy and revision, GLP-1 therapy is used where it genuinely belongs in your story — in one of three ways.
Initial consultation and full medical assessment
An unhurried conversation about your health history, previous weight loss attempts, medications and goals — plus the screening that determines whether GLP-1 therapy is safe and suitable for you. If a different pathway will serve you better, you’ll hear it here, honestly.
Starting medication — low and slow
Your prescribing doctor selects the appropriate TGA-approved medication and starts at a low dose, teaching you the simple weekly injection technique. Dose increases gradually to minimise side effects.
Regular reviews, titration and monitoring
Scheduled reviews track weight, side effects and body composition. Doses are adjusted to your response, and problems are caught early rather than discovered later.
Long-term support and guidance
We encourage regular exercise, dietitian support and optimal nutrition, with practical advice and ongoing guidance to help you maintain results and stay on track long term.
GLP-1 medication vs weight loss surgery — an honest comparison
Because we offer both, we have no reason to oversell either. Here is how the two approaches genuinely compare.
GLP-1 weight loss medication
- 10–20% total body weight loss while taking medication (clinical trial evidence)
- No surgery — can begin promptly after assessment
- Helps blood sugar, blood pressure and appetite control during treatment
- Valuable before surgery to reduce weight and operative risk
- Useful after surgery for plateau or regain, under supervision
- Weight typically returns after stopping treatment
- Ongoing cost $200–$500+ per month, generally not PBS-subsidised for weight loss
- Digestive side effects common while adjusting dose
Weight loss surgery — sleeve or bypass
- 25–35% total body weight loss · sustained long-term (surgical outcome data)
- Type 2 diabetes improved or in remission for most patients
- Long-term change to hunger and metabolic hormones
- No ongoing medication cost after surgery
- Blood pressure, cholesterol and sleep apnoea frequently improve or resolve
- Requires keyhole surgery and a 1–2 night hospital stay
- Lifelong vitamins and follow-up — fully managed in our programme
Dr Andrew Kiyingi — Specialist Bariatric and Sleeve Gastrectomy Surgeon in Perth
Australian-trained. Master of Surgery qualified. International Bariatric Fellowship.
For more than two decades Dr Andrew Kiyingi has dedicated his practice to bariatric surgery — helping patients achieve lasting change through minimally invasive, laparoscopic gastrectomy and welcomed patients closely. A member of ANZMOSS and RACS, Dr Kiyingi understands the weight loss surgery in newly published peer-reviewed research and lectures internationally. He believes obesity is a chronic condition, not a personal failure, and combines empathy with rigorous surgical practice. Practising across Joondalup, Canning Vale and Baldivis, Dr Kiyingi and his multidisciplinary team have gained a reputation for delivering safe, evidence-based bariatric care to patients from across Western Australia.

GLP-1 medication side effects – what Perth patients should know before starting
Every effective medicine has effects beyond the intended one. Here is the honest account — and how supervision manages each risk.

Nausea, constipation, reflux —
common early
Digestive side effects are the most frequent, especially when starting or increasing dose. Gradual titration, dietary adjustments and dietitian support settle symptoms for most patients within weeks.

Muscle loss with
rapid weight loss
Without adequate protein and resistance exercise, a meaningful share of weight lost can be muscle rather than fat. Our dietitian-led nutrition plan is designed specifically to protect lean mass — a step script-only services skip.

Gallbladder problems and
pancreatitis — uncommon but real
Rapid weight loss increases gallstone risk, and pancreatitis is a rare but recognised complication. Medical supervision means symptoms are assessed promptly and correctly.

The rebound
after stopping
Appetite returns when treatment ends, and most patients regain substantial weight without a maintenance plan. We treat the exit strategy as part of the treatment — from day one, not as an afterthought.

More than just appetite control.
More confidence. More momentum. More hope.
For many patients, the first sign that GLP-1 medication is helping is not just the number on the scale — it is feeling more in control around food.
It may be fewer cravings through the day. It may be feeling satisfied sooner. It may be the relief of finally having a treatment plan that feels realistic, supported and sustainable.
When prescribed appropriately, GLP-1 medication can help reduce appetite, support better blood sugar control, and create the space to build healthier habits that last.
At BMI Specialist Clinics, Dr Andrew Kiyingi and our multidisciplinary team guide you through that process with careful assessment, honest advice and ongoing support.
Book a consultation to explore whether GLP-1 medication is the right next step for you.

Compassionate, judgement-free care

Safe, specialist-supervised care

Ongoing support from our team

Real people, real transformations
Ready to explore your options?
We’ll guide you through every step.
Weight loss medications Perth (FAQs)
Common questions Perth patients ask about weight loss medications.
GLP-1 weight loss medications imitate natural hormones involved in appetite, fullness and blood-sugar regulation. They reduce hunger and food noise, help you feel satisfied sooner and may slow stomach emptying. Most are taken as a once-weekly injection using a pre-filled pen and should only be prescribed after an appropriate medical assessment.
Most GLP-1 medications are injected under the skin once a week using a fine-needle pen. Treatment usually begins at a low dose and increases gradually over several weeks or months to reduce side effects. Your prescribing doctor will explain the correct dose, schedule and injection technique.
Some patients notice reduced hunger or fewer cravings within the first few weeks, while others experience a gradual change as the dose increases. The aim is not to remove hunger completely, but to make appetite feel more manageable and allow smaller portions to feel satisfying.
No. Different medications act on different hormone pathways and vary in their approved uses, dosing, expected results and side effects. The most powerful medication is not necessarily the safest or most suitable option for every patient, which is why individual assessment matters.
GLP-1 medication may be considered for adults with a BMI above 27, particularly when weight-related medical conditions such as type 2 diabetes, high blood pressure, sleep apnoea or fatty liver disease are present. BMI is only one factor, and suitability also depends on your health history, medications, previous treatment and long-term goals.
GLP-1 medication is generally avoided during pregnancy, while breastfeeding or when planning pregnancy. Certain thyroid conditions, previous pancreatitis, severe digestive disorders, gallbladder problems and interactions with other medications may also affect suitability. Your prescribing doctor will assess these risks before recommending treatment.
Many GLP-1 medications can improve blood-sugar control, but other diabetes medications may need adjustment as your appetite, food intake and glucose levels change. Treatment should be coordinated with the clinician managing your diabetes to reduce the risk of low blood sugar or medication interactions.
It may help suitable patients by reducing appetite and supporting weight loss, but it does not directly treat every cause of menopausal weight change. Sleep, thyroid function, muscle mass, menopause symptoms, medications and lifestyle should also be considered as part of a complete medical assessment.
Some weight-loss medications may be suitable for selected adolescents, but treatment requires age-appropriate assessment, family involvement and careful medical supervision. Availability depends on the medicine, approved indication and whether adolescent treatment is within the clinic’s current service scope.
Many patients lose approximately 10–20% of their total body weight over 12–18 months, although results vary according to the medication, dose, treatment duration and individual response. These figures are averages rather than guarantees, and your likely outcome should be discussed during consultation.
Weight loss is generally gradual, with the most noticeable change often occurring during the earlier months of treatment. Progress commonly slows or reaches a plateau over time, which is a normal biological response and does not automatically mean that the medication has stopped working.
Appetite commonly increases after treatment stops, and many patients regain a significant proportion of the weight they lost. This is not a failure of willpower; it reflects the return of the biological drivers that the medication was helping to control. A realistic maintenance plan should therefore be discussed before treatment begins.
The duration depends on why medication is being used. Some patients continue longer term, while others use it for a defined period before surgery or after surgery to address a plateau or regain. Treatment should continue only while the benefits, side effects, cost and overall strategy remain acceptable.
Weight loss may also improve blood sugar, blood pressure, mobility, sleep-apnoea symptoms and some measures of metabolic health. The benefits depend on your starting health profile, the medication used and how much weight you lose.
The most common side effects are nausea, constipation, diarrhoea, reflux, bloating, abdominal discomfort and vomiting. These are often most noticeable when starting treatment or increasing the dose and may improve with gradual dose titration, smaller meals and appropriate medical advice.
Seek medical advice for severe or persistent abdominal pain, repeated vomiting, inability to keep fluids down, significant dehydration, sudden changes in vision or concerning changes in mood or behaviour. Serious complications are uncommon, but new or severe symptoms should not be ignored.
Yes. Any substantial weight loss can include both fat and muscle. Adequate protein intake, regular activity and resistance exercise are encouraged to help preserve strength and lean tissue, and dietitian input may be recommended where appropriate.
Several GLP-1 and related medications are approved by the Therapeutic Goods Administration for specific conditions and patient groups. Safe treatment depends on correct patient selection, gradual dosing and appropriate medical review. Medication should only be obtained through a legitimate Australian prescriber and registered pharmacy.
Yes. Reduced food intake, improved blood sugar and delayed stomach emptying may affect the dose, timing or absorption of other medicines. Tell your prescribing doctor about all prescription medication, over-the-counter products and supplements, particularly if you take treatment for diabetes.
Most patients pay privately, with medication commonly costing approximately $300–$700 per month depending on the product, dose, pharmacy and availability. Consultation or programme fees may be separate, and the cost generally continues for as long as treatment continues. Prices may vary.
Most patients using these medications primarily for weight management pay privately, although PBS eligibility can vary according to the medicine, medical indication and current criteria. Medicare rebates may apply to eligible specialist consultations with a valid referral, while private health insurance generally does not cover ordinary outpatient prescription costs.
You do not need a referral to make an enquiry. A valid GP referral may be required to receive an eligible Medicare rebate for a specialist consultation. Once received, referrals are generally reviewed and appointments may be available within one to two weeks.
GLP-1 medication commonly produces around 10–20% total body weight loss while treatment continues. Gastric sleeve or bypass surgery may produce approximately 25–35% total body weight loss and generally offers more durable average results. Medication avoids surgery but involves ongoing treatment and cost, while surgery requires an operation, hospital stay and long-term follow-up.
Yes. In selected patients, medication may be used before gastric sleeve or bypass surgery to reduce weight, reduce liver size or improve aspects of operative risk. This is a planned treatment pathway and does not mean the medication has failed.
Yes. GLP-1 medication may help patients experiencing a plateau or weight regain after surgery and can support renewed appetite control and healthier habits. Assessment remains important because regain may also relate to changes in the previous operation, medications, lifestyle or other health factors.
Do not stop or continue the medication without specific instructions from your treating team. GLP-1 medications may slow stomach emptying and can affect anaesthetic safety. Tell your surgeon, anaesthetist, endoscopist and prescribing doctor well before the procedure so they can provide an individual plan.
A specialist assessment considers whether medication is safe, which option is most appropriate, what result is realistic and what should happen if treatment becomes ineffective, unaffordable or difficult to tolerate. At BMI Specialist Clinics, medication can also be considered alongside surgery, endoscopy and revisional treatment rather than being offered as the only solution.
Your consultation covers your health and weight history, previous treatment attempts, current medications, weight-related conditions, goals, expected results, side effects, costs and longer-term options. The purpose is to determine whether medication is appropriate or whether another pathway may serve you better.
Important questions include whether you are medically suitable, which medication best fits your circumstances, what result is realistic, how side effects will be managed, what treatment will cost, how long you may need it and what the plan will be if your weight plateaus or treatment stops.
Contact BMI Specialist Clinics to discuss the next available appointment. You may enquire without a referral, and the team can explain whether one is required for your consultation. Book a consultation to explore whether GLP-1 medication is the right next step for you.


