** Shares of medical equipment maker West Pharmaceutical Services rise 9.97% to $315.01 premarket

** Co raises annual adj. profit forecast to be between $6.55 and $6.75 per share vs prior range of $6.35 to $6.65 per share

** Expects full-year revenue forecast to be between $2.88 billion and $2.91 billion, up from the prior range of $2.87 billion to $2.90 billion

** Analysts, on average, were expecting annual profit of $6.51 per share and total revenue of $2.87 billion - LSEG

** Posts Q3 adj. profit of $1.85/shr vs analysts' estimates of $1.50/shr

** As of last close, stock down 18.6% YTD

(Reporting by Sruthi Narasimha Chari and Sriparna Roy in Bengaluru)

((Sruthinarasimha.chari@thomsonreuters.com))