Complex sentence: This effectively killed the common use of droperidol and made way for heavy usage of the much more expensive non-generic 5-HT3 serotonin receptor antagonists on the market even though these newer drugs had also been shown to prolong QTc as much, if not more than droperidol.
Split into simpler sentences: This effectively killed the common use of droperidol and made way for heavy usage of the much more expensive non-generic 5-HT3 serotonin receptor antagonists on the market. Interestingly, these newer drugs had also been shown to prolong QTc as much, if not more than droperidol.