I am 27 years old. I am a healthy eater, non-smoker, and I exercise regularly. I have had heart palpitations that started after taking a high dose of Dramamine (Dimenhydrinate). I noticed the palpitations and a racing heartbeat right after taking the pills. I was scared, but thought it would be fine in the morning. They never went away. That was three months ago. I can describe it as a "skipped beat" and then a really hard beat. Thump, thump thump....pause....THUMP. I can feel it in my neck and throat. It also disrupts my breathing rhythm. I have seen my general practitioner several times and have had an EKG and stress test. She told me I possibly have PVC's. She is convinced it is nothing to worry about, however, they are increasing in frequency (sometimes 5-6 a minute) and are very distracting (scary too). I get them randomly with an increase during exercise and the day after. My question is: Could taking this medication have permanently alter my heart function? If not, could it have made me more sensitive to my heart rhythm? I repeat, I have NEVER experienced this sensation before taking this medication. I realize heart palpitations can be benign, but why would they start after this one dose, and continue months later? I want to know if there is anything I can do to prevent this from happening, or reverse this effect. I don't understand a whole lot about heart function, and I am not getting a very thorough explanation about how this could happen from my doctor.
I don't know about long term, but I think dramamine affected my postural orthostatic tachycardia syndrome similarly (with increase in my tachy) but dramamine (or gravol in Canada) made my eyelids, etc. itch which I was told can be a side effect. Benadryl has also caused palpitations for me before. I think you should ask for a holtor monitor test.
Oops- didn't finish my sentence up there, I meant affected me similarly I think to phenergan, which is the medication I take now for migraines. I was taking gravol/dramamine for awhile back in 2003.
Anxiety can also make a person very aware of their heartbeat. And low iron can cause palpitations- have you had your ferritin and circulating iron checked? Also, hyperthyroidism can cause palpitations- have you had your thyroid function checked?
I know there can be long term potential affects of some drugs- have you tried a web search about long term side effects of dramamine at high doses? I recall vaguely something about a lot of people taking too high of doses of that drug- I hope you didn't take a larger dose than recommended on the label?
I have had my iron/magnesium and other minerals checked. Everything appears normal. My anxiety level is actually lower than it used to be. I have not had caffeine since this started. I have had my thyroid levels checked as well. There is no information about permanent damage from Dramamine use.
I've been taking dimenhydrinate on and off for so long. I used it to induce drowsiness and put me into a good sleep. It works all the time.
Only recently, after years of taking it, I started having palpilations/pounding heart beat, especially when lying down or sleeping. I wonder if it has to do with dymenhidrinate. Looking at the doses I've been takin so far, I never took it overdose. Actually I took it 25mg at a time, and never daily.
But I do have anxiety which I think is the main factor for palpitations. Hardly I see the connection between dimenhydrinate and palpilations.
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