The usual Xhance (fluticasone propionate) dosage for chronic sinus ... This means you receive a total of 50 mcg per spray. That’s up to 200 mcg per day during the first week, which is then ...

Doses of fluticasone propionate inhalation powder 50 and 100 mcg twice daily significantly improved FEV1 (15% and 18% change from baseline at Endpoint, respectively) compared with placebo (7% change).