The word phenylephrines is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 29
Highest Scoring Words With Friends™ Play In The Letters phenylephrines
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Seven Letter Word Alert: (31 words)
helpers, hyphens, nippers, nipples, peelers, peepers, penners, pennies, phenyls, phisher, phrensy, pinenes, reheels, relines, repeels, repiles, repines, repipes, replies, reshine, ripples, seepier, sheerly, shipper, sleeper, slipper, snipper, spinner, spinney, yeelins, yelpers