The word griseofulvin 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: 24
Highest Scoring Words With Friends™ Play In The Letters griseofulvin
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Seven Letter Word Alert: (83 words)
elision, eloigns, elusion, engulfs, envious, figures, filings, fingers, firings, florins, foiling, foreign, forgive, fouling, fringes, fueling, furling, furlong, girlies, girnels, glories, glovers, golfers, governs, grovels, gunfire, igneous, ignores, infuser, infusor, ioniser, ironies, ivories, legions, lingers, lingoes, lionise, livings, lounger, lounges, lousier, lousing, louvers, louvres, nervous, noisier, oilfire, olefins, olivine, origins, ourself, ovenful, reflogs, regions, regulon, reusing, rifling, roiling, rousing, rulings, serving, sieving, sigfile, sirloin, slinger, soiling, solving, souring, sulfone, surfing, surgeon, surveil, unifier, unifies, unveils, veiling, velours, versing, version, violing, violins, virgins, virions