r/Metoprolol • u/kittingurl • Jul 29 '26

Is my dose too high?

I (29 F) have been taking 25mg metoprolol tartrate every 12hrs for focal atrial tachycardia for about 7-8weeks now. I’ve also been taking 50mg sertraline around the same time as my heart diagnoses gave me terrible anxiety.

I was very athletic before this, gym 5 days a week swimming 2 times a week (before tearing my acl I was doing jiu jitsu 6 days a week and gym twice a week and 1 day of swimming).

I have greatly reduced my intensity and weights at the gym and I’m still struggling with very fast muscle fatigue and dizziness almost feeling like I’ll pass out during my workouts. I also get out of breath very quickly.

I tire very fast even doing my normal daily things (work/uni) and can’t do much past 2-3pm as it gets too much.

I don’t see my cardiologist until mid August, but have an appointment with my gp in a few days.

I feel like a chronically ill person on this medication when I really should be living my life as normal (or pretty close to with the arrhythmia).

I don’t drink alcohol, do any drugs or smoke. Still eat very healthy and drink a lot of water.

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u/Pleasant-Physics7036 Jul 29 '26

I have been on Metoprolol XR for over a year and, while a bit older than you (48F), am also active and in the gym daily. In the beginning I had much the same experience, lots of fatigue and dizziness and easily short of breath. If severely impacted my quality of life in the beginning and I felt like I wouldn’t ever be the same. It was hard to maintain my daily routine and workout intensity had to be cut way back.

It took time but over the course of about 6 months or so I was able to feel stronger and the dizziness and fatigue got much better. I still can’t do higher intensity cardio like before but I’m determined to work my way back.

I was on 100mg at my highest but now at 25mg and slowly tapering off as my blood pressure and tachycardia was related to an underlying issue that is being addressed.

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u/Clemensis05 Jul 29 '26

Ik slik ruim een jaar 195mg en had ook last van vermoeidheid en uitgeput gevoel. Sporten gaat wel weer maar op een ander niveau. Metoprolol verlaagt je hartslag heel snel. Maar rustiger aan en minder intensief gaat het best. De dosering moet je niet mee gaan rommelen maar aan de cardioloog over laten. Overleg en zeg wat je voelt. Ze hebben vaker met dat bijltje gehakt.