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Concerns About Side Effects from Tamiflu After Previous Use

2/8/2026, 6:40:16 PMMale25-34

I'm a 30-year-old female currently battling both COVID-19 and influenza B. The last instance I had the flu was back in 2022 (influenza A), during which I used Tamiflu without experiencing any adverse effects, and it helped speed up my recovery. Today, upon visiting my doctor, I was prescribed Tamiflu again, and without giving it much thought, I took my first dose about two hours ago. However, I made the mistake of browsing the internet and came across alarming information suggesting that Tamiflu can lead to serious side effects, including hallucinations and various mental health issues. This has left me feeling anxious and on edge, especially since my greatest concern is losing control over my mind and body. I've found myself compulsively checking in with my thoughts, worried that I might start hallucinating or experiencing unusual mental sensations. I'm even hesitant to nap, fearing that I could wake up suffering from hallucinations or sleep paralysis. I am currently prescribed 200mg of Zoloft for managing OCD, and outside of that, I consider myself generally healthy. I understand that my online reading may have led me to irrational fears, yet I can't seem to shake off the worry. I've previously taken Tamiflu without any hallucinations; what are the actual chances that I would encounter issues this time? Should I discontinue the medication? I’m also concerned about the flu worsening if I choose not to take Tamiflu. Any guidance or reassurance would be greatly appreciated. Thank you!

BronchitisPneumoniaAllergy & Immunology

Answers (1)

Cony

2/8/2026, 6:40:30 PM

OpenHealth AI

It's understandable to feel anxious after reading alarming information online, especially when it concerns medications you are currently taking. Here’s a breakdown of your situation and some actionable steps you can take:

Main Points:

  1. Tamiflu (oseltamivir) is generally well-tolerated and effective for treating influenza.
  2. Serious side effects like hallucinations are rare and tend to occur in a small percentage of patients, often in specific circumstances.
  3. It’s important to weigh the benefits of treating your current flu against the fears stemming from what you've read.

Explanation:

Tamiflu is an antiviral medication prescribed to reduce the severity and duration of flu symptoms. In clinical practice, it’s been shown to help many people recover more quickly. While there have been reports of psychiatric side effects such as hallucinations, these are not common and typically occur in certain demographics (like young children) and in some isolated incidents. Your previous experience with Tamiflu was positive, which is a good indicator that you may respond well again.

Your concerns about hallucinations likely stem from anxiety and possibly some residual worry from your OCD. It’s important to remember that your mental health history and current medication (Zoloft) can play a role in how you process these fears.

Next Steps:

  1. Continue Taking Tamiflu: Unless you experience any severe side effects (like allergic reactions), it’s advisable to continue taking Tamiflu as prescribed to aid in your recovery from the flu. The benefits typically outweigh the risks, especially considering your prior successful use of the medication.

  2. Focus on Reassurance: Remind yourself that experiencing severe side effects is highly unlikely based on your past experience and the fact that most people tolerate Tamiflu well. Consider keeping a journal of your positive experiences and feelings each day to combat negative thoughts.

  3. Practice Relaxation Techniques: Engage in calming activities such as deep breathing, meditation, or light stretching during moments of anxiety. This can help reduce your overall stress and prevent those compulsive checks on your thoughts.

  4. Monitor Symptoms: Keep track of how you’re feeling, both physically and mentally, over the next few days. If your anxiety about the medication persists or worsens, consider discussing your feelings with a trusted friend or mental health professional, who can provide additional support.

  5. Limit Information Hunting: Try to reduce the amount of time spent searching the internet for side effects, as this habit can fuel anxiety. Instead, trust the information provided by your healthcare provider.

If you notice any new or concerning symptoms that make you feel uncomfortable while taking Tamiflu, don’t hesitate to reach out to a healthcare professional for guidance. You are taking a proactive approach, which is very commendable. Take care, and focus on your recovery!

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