PMID- 30274305 OWN - NLM STAT- MEDLINE DCOM- 20190909 LR - 20190909 IS - 2072-6651 (Electronic) IS - 2072-6651 (Linking) VI - 10 IP - 10 DP - 2018 Sep 29 TI - Botulinum Toxin in Restless Legs Syndrome-A Randomized Double-Blind Placebo-Controlled Crossover Study. LID - 10.3390/toxins10100401 [doi] LID - 401 AB - BACKGROUND: Restless Legs Syndrome (RLS) is a common movement disorder with an estimated prevalence of up to 12%. Previous small studies with onabotulinumtoxin A (OnaA) for RLS have shown inconsistent results. METHODS: Twenty-four patients with an International RLS score (IRLS) of >11 (moderate-severe) were enrolled in this blinded, placebo-controlled crossover study. Twenty-one patients completed the evaluations at 4, 6, and 8 weeks after each injection. One-hundred units of Incobotulinumtoxin A (IncoA) or normal saline were injected into tibialis anterior, gastrocnemius, and biceps femoris muscles each side. RESULTS: Improvement from a severe (IRLS >21) to a mild/moderate (IRLS