Fluticasone propionate, sold under the brand names Flovent and Flonase among others, is a glucocorticoid steroid medication.

Common side effects when inhaled include upper respiratory tract infections, sinusitis, thrush, and cough.

[19] Common side effects may include nasal irritation (burning, stinging, bleeding), headache, upset stomach (nausea, vomiting), and diarrhea.

Rare side effects include infection (evidenced by, for example, fever, sore throat, and cough), vision problems, severe swelling, hoarse voice, and difficulty breathing or swallowing.

[20][9][2] Common side effects may include upper respiratory tract infection, throat irritation, thrush, cough, and headache.

[22] Ketoconazole, an antifungal drug, has been shown to increase fluticasone concentration leading to systemic corticosteroid side effects.