Rohan Menon Rohan Menon Asked 5 months ago

Does fentanyl cause weight loss?

A friend of mine is on some pain medication called Fentanyl. I noticed they've lost a significant amount of weight recently. Does Fentanyl commonly cause weight loss, or could it be due to other factors?

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6 answers

Amit Shinde Amit Shinde Joined Apr 2026 5 months ago
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I understand you might be researching a difficult medication right now. Fentanyl can cause loss of appetite and nausea, which sometimes leads to weight loss, but please make sure it is only used under strict medical supervision for severe pain management.

Shalini Iyer Shalini Iyer Joined Apr 2026 5 months ago

Dealing with chronic health issues is tough, but fentanyl is an extremely strong prescription painkiller, not a weight loss drug. It can cause side effects like nausea or loss of appetite which might lead to temporary weight drop, but it is highly addictive and should only be used exactly as a specialist prescribes.

Preeti Saxena Preeti Saxena Joined May 2026 5 months ago

My uncle was prescribed a fentanyl patch for severe back pain after his surgery, and we noticed he has lost a lot of weight and has no appetite. Has anyone else observed this kind of extreme weight drop with their family members using this patch? I am quite worried about him.

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Consult a dietary specialist

Tina D'Souza Tina D'Souza Joined Feb 2026 5 months ago

Fentanyl is a potent opioid painkiller, and while it can cause side effects like nausea and loss of appetite that lead to weight loss, it is never used for that purpose. It carries a high risk of dependence and respiratory issues. If you or a family member are on it and losing too much weight, definitely inform your doctor.

Rahul Verma Rahul Verma Joined Jun 2026 5 months ago

Fentanyl is a highly restricted opioid used for severe, cancer-level pain. Any weight loss associated with it is usually a side effect of severe nausea, constipation, or appetite loss. Do not consider this for weight management; consult a general physician for safe weight loss solutions.

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Sanjay Kapoor Sanjay Kapoor Joined Jun 2026 4 months ago

Fentanyl is a heavy-duty pain killer, definitely not something you want to think of for weight loss. If it's causing someone to lose weight, it is probably because it makes them too nauseous to enjoy their food. Stick to traditional dieting, it's much safer than powerful clinical drugs!

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