Has diazempam (Valium) helped you guys with extreme panic attacks?

I imagine some people would say it's been helpful. It doesn't seem to be the best way though. If you look at the recommendations of the UK's National Institute for Clinical Excellence, they don't recommend it for panic disorder.

A study showed that a biofeedback method called CART that reinforces slow, shallow breathing was more effective than cognitive therapy for panic disorder. Slow breathing is often recommended, but deep breathing tends to promote hyperventilation, making it hard for people to breathe. Many people use slow breathing self-help successfully.

This answer has advice for slow breathing, stress management advice, and the name of a good self-help book.

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You might just be stressed out but it could be something else. Article - "Signs that you may have an anxiety disorder"

https://www.rd.com/health/conditions/anxiety-disor...

Information about various anxiety treatments in this answer.

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Only prescribed here in the UK for a minimum 14 days as they are very addictive.

You need to look for self help on the internet , you need to do this yourself with deep breathing and calming exercises.

Drugs are not a long term solution, your mind and self control is.

no, it was useless to me.