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Flunisolide: uses, dosing, side effects & brands

Flunisolide is a medicine sold in the U.S. under 5 brand and generic names. Below: what the FDA label says, every product that contains it, what the pills look like, and its recall record.

By the pharmaranks editorial teamReviewed against the FDA (openFDA label, NDC Directory & Enforcement) sourcesUpdated Jul 24, 2026How we research

Key facts

Available as
Solution · Spray/Inhaler, metered
Sold as
5 products — Flunisolide, Aerobid and Aerospan Hfa, and others
Prescription?
Prescription only
Generic available?
Yes
What the pharmacy pays
about $2 per ml — not your price

Every flunisolide product we track (5)

Same active ingredient — different manufacturer, form, price and FDA recall record. That last one is what our independent score measures.

Flunisolide products
#DrugRatingPharmacy pays
1
Flunisolide
72/100$2View →
2
Aerobid
Not yet rated$2View →
3
Aerospan Hfa
Not yet rated$2View →
4
Nasalide
Not yet rated$2View →
5
Nasarel
Not yet rated$2View →

How long flunisolide keeps

No flunisolide label we read sets a separate limit for after opening, but they do specify how it must be stored — and the stability behind any date assumes those conditions.

Does flunisolide expire? The in-use limits and storage rules from its labels

Flunisolide and breastfeeding

From LactMed, the US National Library of Medicine’s Drugs and Lactation Database — quoted, not rewritten.

Although not measured, the amounts of inhaled corticosteroids absorbed into the maternal bloodstream and excreted into breastmilk are probably too small to affect a breastfed infant. Expert opinion considers inhaled, nasal and oral corticosteroids acceptable to use during breastfeeding.

Full LactMed record for flunisolide: levels in milk, effects in breastfed infants, and the drugs it would consider instead

National Institute of Child Health and Human Development, record revised May 15, 2024. LactMed states its information is not a substitute for professional judgement.

What people report to the FDA about flunisolide

The FDA Adverse Event Reporting System (FAERS) collects reports from patients and clinicians. It holds 1,804 reports naming flunisolide, and the FDA flagged 70% of those reports as serious. The effects reported most often — leaving out reports about overdose, misuse or the condition being treated, which dominate the raw list for common medicines:

  • dyspnoea131 reports
  • nausea125 reports
  • dizziness83 reports
  • anxiety80 reports
  • fatigue80 reports
  • diarrhoea79 reports
  • asthenia73 reports
  • chronic kidney disease73 reports

Read these as a signal, not a rate. A report does not mean flunisolide caused the effect — anyone can file one, and many describe people taking several medicines for several conditions. Crucially there is no denominator: FAERS does not record how many people took the drug, so these counts cannot be turned into “X% of patients” — a bigger number often just means a more widely used or more talked-about drug. Duplicates exist, and publicity drives reporting. For what is actually established, read the FDA label section above.

Source: openFDA drug/event (FAERS), retrieved July 25, 2026.

Related calculators

How long it stays in your system →

Frequently asked questions

Can you take flunisolide with other medicines?

It depends on the medicine. We check it against the FDA labels rather than guessing: our interaction checker searches each drug's own label for the other and quotes what it says, naming the section it came from. Run flunisolide against whatever else you take — and remember that a label not naming a drug is not the same as that combination being safe.

What brand names is flunisolide sold under?

We track 5 flunisolide-containing products in the U.S.: Flunisolide, Aerobid, Aerospan Hfa, Nasalide and Nasarel. They are the same active ingredient; they differ in form, manufacturer, price and FDA recall record.

What forms does flunisolide come in?

Across the brands we track, flunisolide is currently marketed as solution and spray/inhaler, metered, per the FDA's National Drug Code Directory. Each form is dosed differently — follow the label for the exact product you were prescribed.

Is there a generic flunisolide?

Yes. Our catalog lists 1 generic flunisolide product alongside the brand versions. A generic has the same active ingredient and must meet the FDA's bioequivalence standard; it usually costs less. Ask your pharmacist which one your plan covers.

Cite this page
APA
pharmaranks. (2026, July 24). Flunisolide: uses, dosing, side effects & brands. https://pharmaranks.com/drugs/flunisolide
MLA
“Flunisolide: uses, dosing, side effects & brands.” pharmaranks, 24 July 2026, https://pharmaranks.com/drugs/flunisolide.

We summarise public FDA and NIH sources — for a clinical claim, cite the primary source we link to as well.

Sources: FDA openFDA drug label, National Drug Code Directory, and Enforcement (recall) database. This page reproduces public FDA data and is not medical advice. Dosing is set by your prescriber.

Read the full FDA label for flunisolide on DailyMed (NIH) ↗.