Can pregabalin increase heart rate?
Yes. Pregabalin can raise heart rate in some people. It may cause palpitations or a faster pulse, which is consistent with known cardiovascular side effects of drugs in this class.
What might make the increase happen?
Several situations can make a heart-rate rise more noticeable with pregabalin:
- Starting or increasing the dose. Side effects can appear soon after dose changes.
- Other stimulants or medicines that also affect pulse (for example, certain decongestants, thyroid hormone, some asthma inhalers, or other sedating/neurologic drugs).
- Dehydration, fever, or anxiety, which can raise pulse independently and may be mistaken as only a medication effect.
When should you worry (and seek care)?
Pregabalin-associated palpitations are usually monitored, but urgent care is appropriate if you have:
- Chest pain, fainting, severe shortness of breath, or severe dizziness
- A sustained very fast heart rate or irregular heartbeat
- Signs of an allergic reaction (swelling of lips/face, hives, wheezing)
If the increase is mild, you can still contact a clinician promptly, especially if it persists after the dose is stable.
How to check whether pregabalin is the cause
A practical way clinicians assess this is timing and pattern:
- Does the pulse rise after you start pregabalin or after each dose increase?
- Does it improve when the dose is reduced or the drug is stopped (only under medical supervision)?
- Does home monitoring show a consistent trend?
Tracking pulse and symptoms (including the time of dose) can help your prescriber decide next steps.
What can a clinician do about it?
Depending on severity and your reason for pregabalin (neuropathic pain, fibromyalgia, etc.), options often include:
- Checking for other causes (anemia, thyroid problems, dehydration, concurrent medications).
- Adjusting the pregabalin dose or changing to an alternative therapy.
- Monitoring heart rate and rhythm if palpitations are frequent.
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