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Dofetilide and Increased Heart Rate: What Users Say

Brand names: Tikosyn

Increased heart rate: mentioned by 4 users (5.2%)

Based on user experiences from 77 Dofetilide reviews, the following table shows the most commonly mentioned side effects.

All user comments are moderated by Drugs.com. Each review is verified for relevance and screened for inappropriate content. Side effects are user-reported and not clinically verified.

headaches 11.7%
fatigue 9.1%
heart palpitations 7.8%
dizziness 6.5%
tiredness 6.5%
increased heart rate 5.2%
insomnia 5.2%
chills 3.9%
memory loss 3.9%
pain 3.9%

Reviews for Dofetilide

Showing 4 reviews tagged with "increased heart rate". Clear filters to view all 77 reviews.
Commonly mentioned side effects
  • Ste...
  • January 6, 2016

Tikosyn (dofetilide) for Arrhythmia "I have only been on Tikosyn for five days now (the first three while in the hospital). Writing this at 2:00 AM, so I am having some insomnia issues and slight pain in my chest upon deep breaths. The first two doses did not cardiovert me, so I had cardioversion via paddle, which got me back to sinus rhythm very easily, perhaps because of Tikosyn on board. I had previously gone out of sinus rhythm 19 days after a successful ablation, with many post-surgical complications, which is probably why I didn't stay in sinus. I have yet to give this a really good test by exerting myself, maybe it is too soon yet, so I don't know if I'll ever be able to be as active as I was. Other Tikosyn side effects so far: my heart rate seems a bit rapid, and I get winded more easily. I will report back."

8 / 10
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  • Anonymous
  • September 5, 2011

Tikosyn (dofetilide) for Arrhythmia "I have been taking Tikosyn for 5 weeks. It did not kick in until they did a cardioversion on me. I am still having high blood pressure and high heart rate, as well as skipped beats. I have a rash and itching that is very bothersome. But other than that, I am doing well. I feel good, but I just wish my blood pressure and heart rate would go back to normal."

8 / 10
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68 Report
  • Cin...
  • Taken for 1 to 6 months
  • February 26, 2023

Tikosyn (dofetilide) for Arrhythmia "I am scheduled to have an ablation done. I had to stop taking the Tikosyn 5 days before the ablation. Can I tell you I feel much better being off this medication. I would have an Afib episode at least 3 times per week. I developed severe insomnia and was extremely tired with low energy, and any exertion was too much, such as climbing 5 stairs, out of breath and fast heartbeat and extremely exhausted. Not to mention I was getting migraines. I do not want to go back on this medication."

1 / 10
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12 Report
  • Anonymous
  • October 26, 2009

Tikosyn (dofetilide) for Arrhythmia "Just started Tikosyn at 125 mcg twice daily. Rhythm is okay but heart rate is elevated and changes suddenly. Also have tightness in the chest."

4 / 10
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72 Report

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