Is fluoxetine gluten-free?
Looks mostly clean — worth verifying with the maker. Mostly yes — but worth a quick call to the manufacturer for some generics. Of 11 product labels we checked, 10 are clean, 0 are confirmed gluten-free by the maker, and 1 contain an inactive ingredient (typically a source-ambiguous starch) whose botanical origin isn't fully disclosed. None contained confirmed gluten.
Drug context
About fluoxetine
Fluoxetine is an SSRI antidepressant for depression, OCD, bulimia, and panic disorder, sold under brand names including Prozac.
Why this matters
Different manufacturers, different ingredients
Generics of fluoxetine use the same active ingredient, but they aren't required to use the same inactive ingredients. Your pharmacy may switch which manufacturer they dispense between fills, sometimes without telling you. The list below shows each manufacturer's product label as a separate entry, because that's the granularity that actually matters when you're celiac.
The labels
The 11 we checked
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01Barr worth a call to confirmView source label →
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02Northwind Health Company, LLC nothing flagged on the label
Inactive ingredients D&C YELLOW NO. 10 ALUMINUM LAKE · FD&C BLUE NO. 1 ALUMINUM LAKE · GELATIN, UNSPECIFIED · MAGNESIUM STEARATE · PROPYLENE GLYCOL · SHELLAC · STARCH, CORN · TITANIUM DIOXIDE
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03Northwind Health Company, LLC nothing flagged on the label
Inactive ingredients AMMONIA · FD&C BLUE NO. 1 · FERRIC OXIDE YELLOW · FERROSOFERRIC OXIDE · GELATIN, UNSPECIFIED · POTASSIUM HYDROXIDE · PROPYLENE GLYCOL · SHELLAC · SODIUM LAURYL SULFATE · STARCH, CORN · TITANIUM DIOXIDE
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04St. Mary's Medical Park Pharmacy nothing flagged on the label
Inactive ingredients AMMONIA · D&C YELLOW NO. 10 · FD&C BLUE NO. 1 · FERROSOFERRIC OXIDE · GELATIN, UNSPECIFIED · POTASSIUM HYDROXIDE · PROPYLENE GLYCOL · SHELLAC · SILICON DIOXIDE · SODIUM LAURYL SULFATE · STARCH, CORN · TITANIUM DIOXIDE
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05Coupler LLC nothing flagged on the label
Inactive ingredients AMMONIA · FD&C BLUE NO. 1 · FD&C YELLOW NO. 6 · FERROSOFERRIC OXIDE · GELATIN, UNSPECIFIED · POTASSIUM HYDROXIDE · PROPYLENE GLYCOL · SHELLAC · SILICON DIOXIDE · SODIUM LAURYL SULFATE · STARCH, CORN · TITANIUM DIOXIDE
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06Coupler LLC nothing flagged on the label
Inactive ingredients ALCOHOL · AMMONIA · BUTYL ALCOHOL · FD&C BLUE NO. 1 · FERRIC OXIDE YELLOW · FERROSOFERRIC OXIDE · GELATIN · ISOPROPYL ALCOHOL · POTASSIUM HYDROXIDE · PROPYLENE GLYCOL · SHELLAC · SODIUM LAURYL SULFATE · STARCH, CORN · TITANIUM DIOXIDE
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07NCS HealthCare of KY, LLC dba Vangard Labs nothing flagged on the label
Inactive ingredients AMMONIA · FD&C BLUE NO. 1 · FD&C YELLOW NO. 6 · FERRIC OXIDE YELLOW · FERROSOFERRIC OXIDE · GELATIN, UNSPECIFIED · POTASSIUM HYDROXIDE · PROPYLENE GLYCOL · SHELLAC · SODIUM LAURYL SULFATE · STARCH, CORN · TITANIUM DIOXIDE
View source label → -
08RADHA PHARMACEUTICALS, INC. nothing flagged on the label
Inactive ingredients AMMONIA · D&C YELLOW NO. 10 · FD&C BLUE NO. 1 · FD&C YELLOW NO. 6 · FERROSOFERRIC OXIDE · GELATIN, UNSPECIFIED · POTASSIUM HYDROXIDE · PROPYLENE GLYCOL · SHELLAC · SILICON DIOXIDE · SODIUM LAURYL SULFATE · STARCH, CORN · TITANIUM DIOXIDE
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09Par Health USA, LLC nothing flagged on the label
Inactive ingredients ALCOHOL · D&C RED NO. 28 · D&C YELLOW NO. 10 · FD&C BLUE NO. 1 · FD&C BLUE NO. 2 · FD&C RED NO. 3 · FD&C RED NO. 40 · FD&C YELLOW NO. 6 · FERRIC OXIDE RED · FERRIC OXIDE YELLOW · FERROSOFERRIC OXIDE · GELATIN · MAGNESIUM STEARATE · METHYL ALCOHOL · PROPYLENE GLYCOL · SHELLAC · STARCH, CORN · TITANIUM DIOXIDE
View source label → -
10BluePoint Laboratories nothing flagged on the label
Inactive ingredients AMMONIA · FD&C BLUE NO. 1 · FD&C YELLOW NO. 6 · FERRIC OXIDE YELLOW · FERROSOFERRIC OXIDE · GELATIN, UNSPECIFIED · POTASSIUM HYDROXIDE · PROPYLENE GLYCOL · SHELLAC · SODIUM LAURYL SULFATE · STARCH, CORN · TITANIUM DIOXIDE
View source label → -
11Teva Pharmaceuticals USA, Inc. nothing flagged on the label
Inactive ingredients D&C RED NO. 28 · D&C YELLOW NO. 10 · D&C YELLOW NO. 10 ALUMINUM LAKE · FD&C BLUE NO. 1 · FD&C BLUE NO. 1 ALUMINUM LAKE · FD&C BLUE NO. 2--ALUMINUM LAKE · FD&C RED NO. 40 · FD&C YELLOW NO. 6 · FERRIC OXIDE RED · FERRIC OXIDE YELLOW · FERROSOFERRIC OXIDE · GELATIN, UNSPECIFIED · MAGNESIUM STEARATE · PROPYLENE GLYCOL · SHELLAC · STARCH, CORN · TITANIUM DIOXIDE
View source label →
Try it live
Or screen fluoxetine right now
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Background
What “gluten in a medication” actually means
Gluten enters drugs through their excipients — the inactive ingredients used to bind, coat, fill, or stabilize the dose. The main concern is wheat starch as a filler. Source-ambiguous starches (plain “starch”, pregelatinized starch, sodium starch glycolate, modified starch) get flagged for verification because their botanical origin isn't always disclosed on the label.
The 2024 Mangione et al. pediatric NDC analysis (689 NDCs across the top 100 pediatric medications) found 1.5% contained gluten outright; another 25.7% couldn't be confirmed either way. Liquid and oral-suspension formulations carry disproportionate risk because wheat starch is a common thickener. Full methodology →
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