Long COVID Atlas
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Education, not medical advice. Do not start, stop, or change any medication or supplement without your own clinician, who knows your history and other medicines.

Treatment · Autonomic

Ivabradine

A drug that calms a racing heart without lowering blood pressure, which makes it well suited to POTS. Post-COVID POTS has been studied specifically, and ivabradine shows one of the better response rates among POTS medications.

Short version: ivabradine slows the heart rate directly without dropping blood pressure, useful in POTS when beta-blockers are not tolerated. A post-COVID trial has tested it.

Slowing the heart without dropping pressure

Ivabradine slows the heart's natural pacemaker directly, lowering a racing rate without lowering blood pressure, which is useful when beta-blockers drop pressure too much.1

What standing up does Lying downheart rate about 72,blood spread evenly stand up Standingblood pools in the legs;to compensate the heartraces 30+ beats faster POTS = the racing heart on standing;orthostatic intolerance = dizzy, foggy, faint upright
Standing is a small cardiovascular stress test. Gravity pulls blood into the legs, and the body must tighten vessels and adjust heart rate to keep the brain supplied. When that reflex misfires, the heart compensates by racing (POTS) and the brain is briefly under-supplied, felt as dizziness, lightheadedness, and fog on standing.

What the evidence says

In POTS reviews ivabradine shows one of the higher rates of symptomatic improvement, and a nested randomized trial in post-COVID POTS (COVIVA) tested it specifically. Its limited effect on breathing is an advantage for people with breathlessness.2, 3

favourable signal post-COVID RCT done

Where it fits

It is often considered when the heart rate is the main problem and beta-blockers are not tolerated. Availability and cost vary by country. As always it sits alongside fluids, salt, and compression for POTS.

What we don't know

Honest about the edges of the evidence. These are open questions, not settled answers.

  • How ivabradine compares with beta-blockers long-term.
  • Who responds best.
  • Cost and access barriers.

References

Every reference is free to read in full.

  1. POTS and dysautonomia after COVID-19 (review of management).
  2. Oral medications for POTS, including PASC-associated POTS (systematic review).
  3. Treatment of POTS: non-pharmacological and pharmacological (systematic review).
  4. Nested RCT of ivabradine in post-COVID POTS (COVIVA).

Associated topics

SymptomOrthostatic tachycardia (HR rise on standing)a treatment triedSymptomOrthostatic intolerance (dizziness, lightheadedness)a treatment tried