Efficacy of Pfizer's weight-loss drug 'inferior' to others on the market, says UBS's Colin Bristow
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Efficacy of Pfizer's weight-loss drug 'inferior' to others on the market, says UBS's Colin Bristow

Colin Bristow, UBS managing director, joins 'Fast Money' to discuss Pfizer's weight-loss drug.
03:18
Mon, May 22 20236:37 PM EDT