Does Diphenhydramine (Benadryl) help with anxiety?

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Last updated: April 10, 2025View editorial policy

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From the Research

Benadryl (diphenhydramine) is not recommended as a treatment for anxiety due to its significant drawbacks and lack of approval for anxiety treatment. While it can cause drowsiness and may temporarily reduce feelings of anxiety in some people, using it for anxiety can lead to tolerance, requiring higher doses for the same effect. Side effects include extreme drowsiness, dry mouth, blurred vision, constipation, and impaired cognitive function. Long-term use may increase dementia risk, especially in older adults.

Alternative Treatments for Anxiety

For anxiety, better options include:

  • Therapy, such as cognitive behavioral therapy (CBT) 1
  • FDA-approved medications, such as selective serotonin reuptake inhibitors (SSRIs), serotonin-norepinephrine reuptake inhibitors (SNRIs), or benzodiazepines prescribed by a doctor 2, 3
  • Lifestyle changes, such as regular exercise, adequate sleep, and stress management techniques These approaches address the underlying causes of anxiety rather than just temporarily masking symptoms and have better safety profiles for ongoing use.

Key Considerations

When considering treatment for anxiety, it's essential to prioritize evidence-based approaches that address the underlying causes of anxiety, rather than relying on medications like Benadryl that may have significant drawbacks. The most recent and highest-quality study, 3, supports the use of SSRIs as a first-line treatment for anxiety due to their efficacy and tolerability.

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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