@kudzu
Good advice.
There are so many reasons for tachycardia. Many can be treated with medications and or ablations.

I was on Amiodarone for less than a year and read about the toxicity and asked to be weaned off, which they did. I am not on a medication Mexiletine (spell) which really has helped. But is specific to me and I don't want to infer it would be appropriate to others. But it did cut my PVCs in half and have only had one episode of tachycardia in 2 years.