Inactive ingredients by manufacturer

Probenecid inactive ingredients by manufacturer

Wondering whether your Probenecid 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 Probenecid 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 7 of the 7 current Probenecid products on the market today, from 6 companies listing it with the FDA, and lined them up side by side.

Dr. Brian Staiger, PharmD, BCPS
Curated and coded by , clinical pharmacist. Updated October 6, 2026 · how this page is built

Ask about your bottle

Is there something in your Probenecid? 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.

Check your bottle

Let's take a closer look at your Probenecid.

Pick your bottle and tap what you want to check. The answer comes from that product's own FDA label, which is already on this page.

1 Which bottle do you have?

Or tap your way to it: the form, then the strength, then the company.

Form

2 What do you want to check?

Nothing tapped? We check the five big ones.

Probenecid Your bottle Pick a product and this label fills in.

Pick your bottle to read its label, or tap an ingredient to see which Probenecid products leave it out.

At a glance

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

  1. LactoseNo checked product

    No checked Probenecid product lists lactose.

  2. Wheat or gluten sourceNo checked product

    No checked Probenecid product lists a wheat or gluten source.

  3. SoyNo checked product

    No checked Probenecid product lists soy.

  4. Synthetic dyesEvery checked product

    Every checked Probenecid product (7) lists synthetic dyes. See the products

  5. GelatinNo checked product

    No checked Probenecid product lists gelatin.

Also listed by some products: Corn 6 of 7 Titanium dioxide 7 of 7 PEG or polysorbate 7 of 7

Find a version without it

Every current Probenecid product and what its label lists

Fastest way: search by NDC. It is printed on your bottle's pharmacy label. If it is not, call your pharmacy: they have it on record.

Hide products that list:

Probenecid 500 mg tablet 7 companies Synthetic dyes 7 Titanium dioxide 7 Polyethylene glycol or polysorbate 7 Corn-derived 6
CompanyListsInactive ingredients on the label
ActavisNDC 00591-5347-00 Other pack sizes, same label: 00591-5347-01, 00591-5347-10, 00591-5347-77 Synthetic dyes Titanium dioxide Polyethylene glycol or polysorbate
Show 12 ingredients

CELLULOSE, MICROCRYSTALLINE, D&C YELLOW NO. 10 ALUMINUM LAKE, FD&C BLUE NO. 1 ALUMINUM LAKE, FD&C YELLOW NO. 6 ALUMINUM LAKE, HYPROMELLOSES, MAGNESIUM STEARATE, POLYETHYLENE GLYCOL, UNSPECIFIED, POLYSORBATE 80, SILICON DIOXIDE, SODIUM LAURYL SULFATE, SODIUM STARCH GLYCOLATE TYPE A POTATO, TITANIUM DIOXIDE
Bryant Ranch PrepackNDC 72162-2237-01 Corn-derived Synthetic dyes Titanium dioxide Polyethylene glycol or polysorbate
Show 15 ingredients

ALUMINUM OXIDE, D&C YELLOW NO. 10, FD&C BLUE NO. 2, FD&C YELLOW NO. 6, MAGNESIUM STEARATE, MICROCRYSTALLINE CELLULOSE, POLYETHYLENE GLYCOL, UNSPECIFIED, POLYVINYL ALCOHOL, UNSPECIFIED, POVIDONE, UNSPECIFIED, SILICON DIOXIDE, SODIUM LAURYL SULFATE, SODIUM STARCH GLYCOLATE TYPE A POTATO, STARCH, CORN, TALC, TITANIUM DIOXIDE
Bryant Ranch PrepackNDC 72162-2386-01 Corn-derived Synthetic dyes Titanium dioxide Polyethylene glycol or polysorbate
Show 14 ingredients

D&C YELLOW NO. 10, FD&C BLUE NO. 2, FD&C RED NO. 40, MAGNESIUM STEARATE, MICROCRYSTALLINE CELLULOSE 101, POLYETHYLENE GLYCOL 4000, POLYVINYL ALCOHOL, UNSPECIFIED, POVIDONE K90, SILICON DIOXIDE, SODIUM LAURYL SULFATE, SODIUM STARCH GLYCOLATE TYPE A POTATO, STARCH, CORN, TALC, TITANIUM DIOXIDE
LannettNDC 00527-1367-01 Other pack sizes, same label: 00527-1367-10 Corn-derived Synthetic dyes Titanium dioxide Polyethylene glycol or polysorbate
Show 15 ingredients

ALUMINUM OXIDE, CELLULOSE, MICROCRYSTALLINE, D&C YELLOW NO. 10, FD&C BLUE NO. 2, FD&C YELLOW NO. 6, MAGNESIUM STEARATE, POLYETHYLENE GLYCOL, UNSPECIFIED, POLYVINYL ALCOHOL, UNSPECIFIED, POVIDONE, UNSPECIFIED, SILICON DIOXIDE, SODIUM LAURYL SULFATE, SODIUM STARCH GLYCOLATE TYPE A POTATO, STARCH, CORN, TALC, TITANIUM DIOXIDE
MarlexNDC 10135-0541-01 Other pack sizes, same label: 10135-0541-10 Corn-derived Synthetic dyes Titanium dioxide Polyethylene glycol or polysorbate
Show 15 ingredients

ALUMINUM OXIDE, CELLULOSE, MICROCRYSTALLINE, D&C YELLOW NO. 10, FD&C BLUE NO. 2, FD&C YELLOW NO. 6, MAGNESIUM STEARATE, POLYETHYLENE GLYCOL, UNSPECIFIED, POLYVINYL ALCOHOL, UNSPECIFIED, POVIDONE K30, SILICON DIOXIDE, SODIUM LAURYL SULFATE, SODIUM STARCH GLYCOLATE TYPE A POTATO, STARCH, CORN, TALC, TITANIUM DIOXIDE
RemedyrepackNDC 70518-4649-00 Corn-derived Synthetic dyes Titanium dioxide Polyethylene glycol or polysorbate
Show 14 ingredients

D&C YELLOW NO. 10, FD&C BLUE NO. 2, FD&C RED NO. 40, MAGNESIUM STEARATE, MICROCRYSTALLINE CELLULOSE 101, POLYETHYLENE GLYCOL 4000, POLYVINYL ALCOHOL, POVIDONE K90, SILICON DIOXIDE, SODIUM LAURYL SULFATE, SODIUM STARCH GLYCOLATE TYPE A POTATO, STARCH, CORN, TALC, TITANIUM DIOXIDE
RisingNDC 16571-0831-01 Other pack sizes, same label: 16571-0831-10 Corn-derived Synthetic dyes Titanium dioxide Polyethylene glycol or polysorbate
Show 14 ingredients

D&C YELLOW NO. 10, FD&C BLUE NO. 2, FD&C RED NO. 40, MAGNESIUM STEARATE, MICROCRYSTALLINE CELLULOSE 101, POLYETHYLENE GLYCOL 4000, POLYVINYL ALCOHOL, POVIDONE K90, SILICON DIOXIDE, SODIUM LAURYL SULFATE, SODIUM STARCH GLYCOLATE TYPE A POTATO, 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.

Probenecid and synthetic dyes

Synthetic dyes: FD&C or D&C colorants and their aluminum lakes. Every checked Probenecid product (7) lists synthetic dyes.

Show which Probenecid products list synthetic dyes and which do not, by product and company

Lists synthetic dyes

  • 500 mg tablet: Actavis, Bryant Ranch Prepack, Bryant Ranch Prepack, Lannett, Marlex, Remedyrepack, Rising

Probenecid without corn-derived ingredients

Corn-derived: corn starch, maize or corn syrup; a concern with corn allergy. 6 of 7 checked products list corn-derived ingredients; 1 does not.

Show which Probenecid products list corn-derived ingredients and which do not, by product and company

Does not list corn-derived ingredients

Lists corn-derived ingredients

  • 500 mg tablet: Bryant Ranch Prepack, Bryant Ranch Prepack, Lannett, Marlex, Remedyrepack, Rising

Probenecid and titanium dioxide

Titanium dioxide: A white colorant some people choose to avoid. Every checked Probenecid product (7) lists titanium dioxide.

Show which Probenecid products list titanium dioxide and which do not, by product and company

Lists titanium dioxide

  • 500 mg tablet: Actavis, Bryant Ranch Prepack, Bryant Ranch Prepack, Lannett, Marlex, Remedyrepack, Rising

Probenecid and polyethylene glycol or polysorbate

Polyethylene glycol or polysorbate: PEG, macrogol or polysorbate; a rare cause of allergic reactions. Every checked Probenecid product (7) lists polyethylene glycol or polysorbate.

Show which Probenecid products list polyethylene glycol or polysorbate and which do not, by product and company

Lists polyethylene glycol or polysorbate

  • 500 mg tablet: Actavis, Bryant Ranch Prepack, Bryant Ranch Prepack, Lannett, Marlex, Remedyrepack, Rising

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 Probenecid product suits you →

Common questions about Probenecid inactive ingredients

Is Probenecid gluten-free?
This page cannot certify any Probenecid product gluten-free; it reports what each label declares. Of the 7 products checked, none lists a wheat, barley, rye or gluten ingredient, and none lists a starch or maltodextrin without a stated source. If you have celiac disease, ask the manufacturer's medical information line for a written gluten statement for the lot you have.
Does Probenecid contain lactose?
No checked Probenecid product 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 Probenecid contain soy?
No checked Probenecid 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 Probenecid?
Every checked Probenecid product (7) lists a synthetic dye (an FD&C or D&C colorant) on its label. Colorants often differ by strength within one company's line, so compare the lists above strength by strength.
Does Probenecid contain gelatin?
No checked Probenecid product 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 Probenecid product can list lactose and a dye while another from a different company lists neither.
Who decides what counts as a gluten source, a dye or soy on this page?
Dr. Brian Staiger, PharmD, BCPS, a clinical pharmacist, wrote and maintains the classification this page applies: which ingredient names count as a lactose, wheat or gluten, soy, synthetic dye or gelatin source, and which read as "source not stated" (bare starch or maltodextrin). The ingredient lists themselves are the manufacturers' own FDA labels, shown as filed; nothing is added to or removed from a label.
The NDC on my bottle ends differently from the one on this page. Is it the same product?
Usually, yes. An NDC has three parts: the company, the product (the medicine, strength and form) and, last, the package size. Two codes that share the first two parts are the same product in different pack sizes, and a label belongs to the product, so every pack size shares one inactive-ingredient list. Each product on this page lists every pack size the FDA directory holds for it, and the NDC search accepts any of them.
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. The list is rebuilt every day, the FDA directory is re-imported every week, and each inactive-ingredient list is the manufacturer's FDA label as our label sync last read it, re-read when the FDA publishes a new version. 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 Probenecid 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 Probenecid guide