Rohan Dasgupta Rohan Dasgupta Asked 4 months ago

Can vivitrol cause weight gain or weight loss?

I'm about to start Vivitrol treatment, and I'm trying to gather as much information as possible. I'm especially curious about its effects on body weight. Can Vivitrol cause either weight gain or weight loss?

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5 answers

Sameer Alvi Sameer Alvi Joined Feb 2026 4 months ago
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According to the clinical data my doctor shared, Vivitrol actually more commonly causes decreased appetite, which can lead to weight loss for some. However, everyone's metabolism reacts differently to naltrexone. It is best to track your daily calorie intake.

Devendra Nath Devendra Nath Joined Mar 2026 4 months ago

I have seen many people go through various treatments in my life. Changes in weight are very common when your body is adjusting to such strong medications. Don't worry too much, with time and a steady daily routine, your body will find its balance again.

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Consult a dietary specialist

Ananya Sen Ananya Sen Joined Feb 2026 4 months ago

Weight changes on Vivitrol can go either way depending on individual lifestyle and metabolic shifts. Since this is a specialized prescription medication, your prescribing psychiatrist or doctor is the absolute best person to guide you on managing these side effects.

Sonia Mirza Sonia Mirza Joined Apr 2026 4 months ago

I had severe nausea and a complete loss of appetite on this medication, which led to sudden weight loss and weakness. It can be quite hard on the body. Please stay in close touch with your healthcare provider to monitor your vitals regularly.

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Ritu Phogat Ritu Phogat Joined Jun 2026 4 months ago

I completely understand how stressful it is to watch your body change while dealing with this treatment. It is an emotional rollercoaster. Please be gentle with yourself; your recovery and mental peace are far more important than a few kilos up or down.

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