Hi
I am taking 125mg Venlafaxine extended release as a migraine prophylactic- for daily migraine and dizziness that started age 46 in perimenopause. I started at 12.5mg in March of this year and titrated up to 137.5mg however at 137.5mg dose I started to experience “missed heartbeats†- mostly in the morning time for a few hours after getting up, they die down a bit during the day and pick back up again around 9pm and last for a few hours. Typically it goes as follows - beat, beat, beat, long pause followed by a forceful beat and then beat, beat, beat until the next one happens. I have since reduced to 125mg and while the intensity of the forceful beats has reduced, I am still gett No them on a daily basis. I have had an ECG and a holter monitor done which revealed a number of premature ventricular contractions and premature atrial contractions. My GP said it's nothing to worry about but I am worried nonetheless.
I am wondering if there are any Venlafaxine/Effexor users on this forum who may have experienced an alteration in heart rhythm?
Thanks for your help
Mav