Inactive ingredients by manufacturer

Flucytosine inactive ingredients by manufacturer

Wondering whether your Flucytosine has lactose, gluten, soy, a dye or gelatin in it? The medicine is the same, but the fillers, coatings and colors differ from one company to the next. This page shows what each Flucytosine product's FDA label lists, so you can find a version that leaves out what you avoid and ask your pharmacist for it by its NDC.

We have read the FDA labels of 20 of the 20 current Flucytosine products on the market today, from 10 companies listing it with the FDA, and lined them up side by side.

Ask about your bottle

Is there something in your Flucytosine? Ask in plain words.

Name the company, strength or the NDC on your bottle and the ingredient you avoid. The answer comes only from the FDA labels on this page.

Answers are drawn from the FDA label data on this page and checked against it. They are not medical advice: confirm with your pharmacist before relying on them.

The short answer

Which Flucytosine products list lactose, a gluten source, soy, dyes or gelatin?

  1. LactoseEvery checked product

    Every checked Flucytosine product (20) lists lactose. See the products

  2. Wheat or gluten sourceNo checked product

    No checked Flucytosine product lists a wheat or gluten source.

  3. SoyNo checked product

    No checked Flucytosine product lists soy.

  4. Synthetic dyesDiffers by manufacturer

    14 of 20 checked products list synthetic dyes; 6 do not. See the products

    Does not list it American Health Packaging Aurobindo Bausch Health Heritage Pharmaceuticals Inc. d/b/a Avet Laurus Sigmapharm
    Lists it American Health Packaging Aurobindo AvPAK Bausch Health Heritage Pharmaceuticals Inc. d/b/a Avet Laurus Lupin Major Novel Sigmapharm
  5. GelatinEvery checked product

    Every checked Flucytosine product (20) lists gelatin. See the products

Also listed by some products: Starch (source not stated) 2 of 20 Corn 8 of 20 Titanium dioxide 20 of 20 Carmine or shellac 16 of 20 Propylene glycol 2 of 20

2 products list starch without a stated source. Most pharmaceutical starch is corn, but the label does not say, so it is flagged on its own.

Find a version without it

Every current Flucytosine product and what its label lists

Hide products that list:

ProductListsInactive ingredients on the label
American Health Packaging 2 products
250 mg capsuleNDC 60687-0599-21 Lactose Synthetic dyes Titanium dioxide Gelatin Carmine or shellac
Show 12 ingredients

ANHYDROUS LACTOSE, D&C YELLOW NO. 10, FD&C BLUE NO. 1, FD&C YELLOW NO. 6, FERROSOFERRIC OXIDE, GELATIN, UNSPECIFIED, POTASSIUM HYDROXIDE, SHELLAC, SILICON DIOXIDE, STARCH, POTATO, TALC, TITANIUM DIOXIDE
500 mg capsuleNDC 60687-0610-21 Lactose Titanium dioxide Gelatin Carmine or shellac
Show 9 ingredients

ANHYDROUS LACTOSE, FERROSOFERRIC OXIDE, GELATIN, UNSPECIFIED, POTASSIUM HYDROXIDE, SHELLAC, SILICON DIOXIDE, STARCH, POTATO, TALC, TITANIUM DIOXIDE
Aurobindo Pharma Limited 2 products
250 mg capsuleNDC 59651-0331-01 Lactose Synthetic dyes Titanium dioxide Gelatin Carmine or shellac
Show 12 ingredients

ANHYDROUS LACTOSE, D&C YELLOW NO. 10, FD&C BLUE NO. 1, FD&C YELLOW NO. 6, FERROSOFERRIC OXIDE, GELATIN, UNSPECIFIED, POTASSIUM HYDROXIDE, SHELLAC, SILICON DIOXIDE, STARCH, POTATO, TALC, TITANIUM DIOXIDE
500 mg capsuleNDC 59651-0332-01 Lactose Titanium dioxide Gelatin Carmine or shellac
Show 9 ingredients

ANHYDROUS LACTOSE, FERROSOFERRIC OXIDE, GELATIN, UNSPECIFIED, POTASSIUM HYDROXIDE, SHELLAC, SILICON DIOXIDE, STARCH, POTATO, TALC, TITANIUM DIOXIDE
AvPAK 2 products
250 mg capsuleNDC 50268-0331-12 Lactose Synthetic dyes Titanium dioxide Gelatin Carmine or shellac
Show 16 ingredients

FD&C BLUE NO. 1, FD&C RED NO. 40, FERROSOFERRIC OXIDE, GELATIN, LACTOSE MONOHYDRATE, MAGNESIUM STEARATE, POTASSIUM HYDROXIDE, POVIDONE, SHELLAC, SILICON DIOXIDE, SODIUM HYDROXIDE, SODIUM LAURYL SULFATE, SODIUM STARCH GLYCOLATE TYPE A POTATO, TALC, TITANIUM DIOXIDE, WATER
500 mg capsuleNDC 50268-0332-12 Lactose Synthetic dyes Titanium dioxide Gelatin Carmine or shellac
Show 14 ingredients

FD&C RED NO. 40, FERROSOFERRIC OXIDE, GELATIN, LACTOSE MONOHYDRATE, MAGNESIUM STEARATE, POTASSIUM HYDROXIDE, POVIDONE, SHELLAC, SILICON DIOXIDE, SODIUM HYDROXIDE, SODIUM STARCH GLYCOLATE TYPE A POTATO, TALC, TITANIUM DIOXIDE, WATER
Bausch Health US LLC 2 products
250 mg capsuleNDC 00187-3554-10 Lactose Corn-derived Synthetic dyes Titanium dioxide Gelatin
Show 8 ingredients

D&C YELLOW NO. 10, FD&C BLUE NO. 1, FD&C YELLOW NO. 6, GELATIN, UNSPECIFIED, LACTOSE, UNSPECIFIED FORM, STARCH, CORN, TALC, TITANIUM DIOXIDE
500 mg capsuleNDC 00187-3555-10 Lactose Corn-derived Titanium dioxide Gelatin
Show 6 ingredients

FERROSOFERRIC OXIDE, GELATIN, UNSPECIFIED, LACTOSE, UNSPECIFIED FORM, STARCH, CORN, TALC, TITANIUM DIOXIDE
Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc. 2 products
250 mg capsuleNDC 23155-0860-01 Lactose Corn-derived Synthetic dyes Titanium dioxide Gelatin Carmine or shellac Propylene glycol
Show 12 ingredients

D&C YELLOW NO. 10, FD&C BLUE NO. 1, FD&C YELLOW NO. 6, FERROSOFERRIC OXIDE, GELATIN, UNSPECIFIED, LACTOSE MONOHYDRATE, POTASSIUM HYDROXIDE, PROPYLENE GLYCOL, SHELLAC, STARCH, CORN, TALC, TITANIUM DIOXIDE
500 mg capsuleNDC 23155-0861-01 Lactose Corn-derived Titanium dioxide Gelatin Carmine or shellac Propylene glycol
Show 9 ingredients

FERROSOFERRIC OXIDE, GELATIN, UNSPECIFIED, LACTOSE MONOHYDRATE, POTASSIUM HYDROXIDE, PROPYLENE GLYCOL, SHELLAC, STARCH, CORN, TALC, TITANIUM DIOXIDE
Laurus Labs Limited 2 products
250 mg capsuleNDC 42385-0983-01 Lactose Starch, source not stated Corn-derived Synthetic dyes Titanium dioxide Gelatin Carmine or shellac
Show 13 ingredients

D&C Yellow no. 10, FD&C Blue no. 1, FD&C Yellow no. 6, Ferrosoferric Oxide, Gelatin, Unspecified, Lactose Monohydrate, Potassium hydroxide, Shellac, Silicon Dioxide, Sodium Starch Glycolate Type A, Starch, Corn, Talc, Titanium dioxide
500 mg capsuleNDC 42385-0984-01 Lactose Starch, source not stated Corn-derived Titanium dioxide Gelatin Carmine or shellac
Show 10 ingredients

Ferrosoferric Oxide, Gelatin, Unspecified, Lactose Monohydrate, Potassium hydroxide, Shellac, Silicon Dioxide, Sodium Starch Glycolate Type A, Starch, Corn, Talc, Titanium dioxide
Lupin Pharmaceuticals,Inc. 2 products
250 mg capsuleNDC 43386-0771-01 Lactose Synthetic dyes Titanium dioxide Gelatin Carmine or shellac
Show 16 ingredients

FD&C BLUE NO. 1, FD&C RED NO. 40, FERROSOFERRIC OXIDE, GELATIN, LACTOSE MONOHYDRATE, MAGNESIUM STEARATE, POTASSIUM HYDROXIDE, POVIDONE, SHELLAC, SILICON DIOXIDE, SODIUM HYDROXIDE, SODIUM LAURYL SULFATE, SODIUM STARCH GLYCOLATE TYPE A POTATO, TALC, TITANIUM DIOXIDE, WATER
500 mg capsuleNDC 43386-0770-01 Lactose Synthetic dyes Titanium dioxide Gelatin Carmine or shellac
Show 14 ingredients

FD&C RED NO. 40, FERROSOFERRIC OXIDE, GELATIN, LACTOSE MONOHYDRATE, MAGNESIUM STEARATE, POTASSIUM HYDROXIDE, POVIDONE, SHELLAC, SILICON DIOXIDE, SODIUM HYDROXIDE, SODIUM STARCH GLYCOLATE TYPE A POTATO, TALC, TITANIUM DIOXIDE, WATER
Major Pharmaceuticals 2 products
250 mg capsuleNDC 00904-6834-07 Lactose Synthetic dyes Titanium dioxide Gelatin Carmine or shellac
Show 17 ingredients

ALUMINUM OXIDE, FD&C BLUE NO. 1, FD&C RED NO. 40, FERROSOFERRIC OXIDE, GELATIN, UNSPECIFIED, LACTOSE MONOHYDRATE, MAGNESIUM STEARATE, POTASSIUM HYDROXIDE, POVIDONE, UNSPECIFIED, SHELLAC, SILICON DIOXIDE, SODIUM HYDROXIDE, SODIUM LAURYL SULFATE, SODIUM STARCH GLYCOLATE TYPE A POTATO, TALC, TITANIUM DIOXIDE, WATER
500 mg capsuleNDC 00904-6835-07 Lactose Synthetic dyes Titanium dioxide Gelatin Carmine or shellac
Show 15 ingredients

ALUMINUM OXIDE, FD&C RED NO. 40, FERROSOFERRIC OXIDE, GELATIN, UNSPECIFIED, LACTOSE MONOHYDRATE, MAGNESIUM STEARATE, POTASSIUM HYDROXIDE, POVIDONE, UNSPECIFIED, SHELLAC, SILICON DIOXIDE, SODIUM HYDROXIDE, SODIUM STARCH GLYCOLATE TYPE A POTATO, TALC, TITANIUM DIOXIDE, WATER
Novel Laboratories, Inc. 2 products
250 mg capsuleNDC 40032-0771-01 Lactose Synthetic dyes Titanium dioxide Gelatin Carmine or shellac
Show 16 ingredients

FD&C BLUE NO. 1, FD&C RED NO. 40, FERROSOFERRIC OXIDE, GELATIN, LACTOSE MONOHYDRATE, MAGNESIUM STEARATE, POTASSIUM HYDROXIDE, POVIDONE, SHELLAC, SILICON DIOXIDE, SODIUM HYDROXIDE, SODIUM LAURYL SULFATE, SODIUM STARCH GLYCOLATE TYPE A POTATO, TALC, TITANIUM DIOXIDE, WATER
500 mg capsuleNDC 40032-0770-01 Lactose Synthetic dyes Titanium dioxide Gelatin Carmine or shellac
Show 14 ingredients

FD&C RED NO. 40, FERROSOFERRIC OXIDE, GELATIN, LACTOSE MONOHYDRATE, MAGNESIUM STEARATE, POTASSIUM HYDROXIDE, POVIDONE, SHELLAC, SILICON DIOXIDE, SODIUM HYDROXIDE, SODIUM STARCH GLYCOLATE TYPE A POTATO, TALC, TITANIUM DIOXIDE, WATER
Sigmapharm Laboratories, LLC 2 products
250 mg capsuleNDC 42794-0009-08 Lactose Corn-derived Synthetic dyes Titanium dioxide Gelatin
Show 10 ingredients

D&C YELLOW NO. 10, FD&C GREEN NO. 3, FD&C YELLOW NO. 6, FERROSOFERRIC OXIDE, GELATIN, LACTOSE MONOHYDRATE, SODIUM LAURYL SULFATE, STARCH, CORN, TALC, TITANIUM DIOXIDE
500 mg capsuleNDC 42794-0010-08 Lactose Corn-derived Titanium dioxide Gelatin
Show 9 ingredients

CARBOXYMETHYLCELLULOSE, FERRIC OXIDE YELLOW, FERROSOFERRIC OXIDE, GELATIN, LACTOSE MONOHYDRATE, SODIUM LAURYL SULFATE, STARCH, CORN, TALC, TITANIUM DIOXIDE

A product with none of these listed is not certified to be without them: the label says what the manufacturer declared, and the source of a starch or a flavor is often not stated. The companies are the FDA's labelers, which include repackagers and distributors selling another company's product under their own label. The NDC opens the product's own page, with the full label and its inactive-ingredient notes.

Flucytosine and lactose

Lactose: milk sugar; a concern with lactose intolerance or a milk allergy. Every checked Flucytosine product (20) lists lactose.

Lists lactose

Flucytosine without synthetic dyes

Synthetic dyes: FD&C or D&C colorants and their aluminum lakes. 14 of 20 checked products list synthetic dyes; 6 do not.

Does not list synthetic dyes

Lists synthetic dyes

Flucytosine and gelatin

Gelatin: animal-derived (usually bovine or porcine); a concern for vegetarian, kosher or halal needs. Every checked Flucytosine product (20) lists gelatin.

Lists gelatin

Flucytosine without starch of unstated source

Starch, source not stated: the label says "starch" without naming corn, potato, tapioca or rice. 2 of 20 checked products list starch of unstated source; 18 do not.

Does not list starch of unstated source

Lists starch of unstated source

Flucytosine without corn-derived ingredients

Corn-derived: corn starch, maize or corn syrup; a concern with corn allergy. 8 of 20 checked products list corn-derived ingredients; 12 do not.

Does not list corn-derived ingredients

Lists corn-derived ingredients

Flucytosine and titanium dioxide

Titanium dioxide: A white colorant some people choose to avoid. Every checked Flucytosine product (20) lists titanium dioxide.

Lists titanium dioxide

Flucytosine without carmine or shellac

Carmine or shellac: insect-derived red colorant or coating glaze. 16 of 20 checked products list carmine or shellac; 4 do not.

Does not list carmine or shellac

Lists carmine or shellac

Flucytosine without propylene glycol

Propylene glycol: A solvent in liquids and capsules; a concern in kidney disease, for infants, and at high doses. 2 of 20 checked products list propylene glycol; 18 do not.

Does not list propylene glycol

Lists propylene glycol

At the pharmacy counter

How to use this at the pharmacy counter

  1. Pick the company whose list suits you and copy the NDC from the table. Many pharmacies order from wholesalers that carry several companies' versions and can request a particular one if you ask before the prescription is filled; some buy from one contracted source only, and a few insurance plans cover only certain NDCs, so ask the pharmacist to check.
  2. Treat "does not list" as exactly that. The label is what the manufacturer declared; a flavor or a starch may have an unstated source, and lines change. For celiac disease or a serious allergy, ask the manufacturer's medical information line for a written statement about the lot you have.
  3. Check the bottle each refill. A different company usually means a different shape, color and inactive-ingredient list; the pharmacist can tell you who made it, and the two-NDC comparison shows the difference line by line.
  4. If you need one company's version kept constant, ask your prescriber to write that company or the NDC on the prescription and tell the pharmacy you need it held. Rules vary by state and plan, so confirm with the pharmacist.
Ask Dr. Staiger which Flucytosine product suits you →

Common questions about Flucytosine inactive ingredients

Is Flucytosine gluten-free?
This page cannot certify any Flucytosine product gluten-free; it reports what each label declares. Of the 20 products checked, none lists a wheat, barley, rye or gluten ingredient, and 2 list starch without a stated source (most pharmaceutical starch is corn, but the label does not say). If you have celiac disease, ask the manufacturer's medical information line for a written gluten statement for the lot you have.
Does Flucytosine contain lactose?
Every checked Flucytosine product (20) lists lactose on its label. The lactose in a tablet or capsule is a small amount, but people with a milk allergy or a strong intolerance often prefer a version that does not list it.
Does Flucytosine contain soy?
No checked Flucytosine product lists a soy ingredient (soybean oil or soy lecithin) on its label. Soy lecithin is the usual form and the amount is small, but people with a soy allergy often prefer a version that does not list it.
Is there a dye-free Flucytosine?
14 of 20 checked Flucytosine products list a synthetic dye (an FD&C or D&C colorant); 6 do not: American Health Packaging (500 mg capsule), Aurobindo (500 mg capsule), Bausch Health (500 mg capsule) and Heritage Pharmaceuticals Inc. d/b/a Avet (500 mg capsule) and 2 other companies. Colorants often differ by strength within one company's line, so compare the lists above strength by strength.
Does Flucytosine contain gelatin?
Every checked Flucytosine product (20) lists gelatin on its label. Gelatin is usually bovine or porcine and the label rarely says which; for kosher, halal or vegetarian needs, ask the manufacturer.
Why do the inactive ingredients differ between manufacturers?
A generic must match the brand's active ingredient, strength, dose form and how it is absorbed; its fillers, binders, coatings and colorants are the manufacturer's own choice. That is why one Flucytosine product can list lactose and a dye while another from a different company lists neither.
Can my pharmacy give me a specific manufacturer's version?
Often, if you ask before the prescription is filled: many pharmacies order from wholesalers that carry several companies' versions and can request a particular one. Some pharmacies buy a generic from one contracted source only, and a few insurance plans cover only certain NDCs, so ask the pharmacist to check. Give them the NDC from this page; the company name alone is often enough.
How current is this list?
The products are the ones in the FDA's current NDC directory as of October 6, 2026, and each inactive-ingredient list is the manufacturer's FDA label as our label sync last read it. Formulations change, so check the label on your own bottle and ask your pharmacist if a refill looks different.

Sources: the products are the finished Flucytosine products in the FDA's current NDC directory (openFDA), as of October 6, 2026; each inactive-ingredient list is the manufacturer's FDA Structured Product Label via DailyMed, as our label sync last read it. The concern groups are HelloPharmacist's classification of the names the label declares. Educational information only, not medical advice; confirm with your pharmacist before relying on a list. ← Back to the Flucytosine guide