I have been on 150mg of Effexor XR for years and have never experienced shortness of breath.
It may be that you are experiencing a rare side effect of the medication. To put your mind at rest you must see a doctor, only they can advise what is causing your problem.
Let us know how you get on.
I'm on effexor and I have trouble breathing constantly. I went to my doctor, thinking it was asthma, but they told me it was probably just anxiety (though I'm skeptical). It constantly feels like there's a weight on my chest, or like my lungs just aren't big enough to take in the nessesary amount of air. It gets espically bad in high humidity and its progressed to the point where I can no longer take warm showers because I'm constantly afraid I'll suffocate, or pass out and bash my skull in on the bathroom tile.
I did some reading on other forums and apparently other effexor users (and users of other antidepressants) have had strickingly similar issues.
- Effexor Information for Consumers
- Effexor Information for Healthcare Professionals (includes dosage details)
- Side Effects of Effexor (detailed)
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