ME/CFS Science @mecfsscience.org · 17/05/20261) A randomized crossover trial found that both ivabradine and the beta-blocker propranolol were effective at lowering heart rate in patients with POTS. There wasn't a clear effect, though, on symptoms or functional capacity. 13210
ME/CFS Science @mecfsscience.org · 17/05/20262) The study was a crossover trial, meaning all participants got the 3 treatments: ivabradine (5 mg), propranolol (4 x 10 mg), or placebo in consecutive order with a 7-day washout period in between. Each treatment period lasted 28 days. 180
