Propel and Propel Mini are steroid-eluting bioabsorbable sinus stents for insertion during sinus surgery or for postoperative in-office insertion to maintain sinus patency. The  implant expands to prop open the sinus after sinus surgery and gradually delivers a steroid medication directly to the sinus lining as the implant dissolves. Both Propel implants release 370 micrograms of mometasone furoate, an anti-inflammatory steroid, directly to the mucosa over approximately 30 days.

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