are not immediate and must be used for at least a few days for noticeable relief. As-needed use is less effective than regular recommended use. Flunisolide should not be used for nasal infections. It should not be continued if symptoms are not relieved after regular use for over two to three weeks.

Patented in 1958 and approved for medical use in 1978, it is on the World Health Organization's List of Essential Medicines.

Side effects

Temporary nose and throat

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