Inactive ingredients by manufacturer

Fidaxomicin inactive ingredients by manufacturer

Wondering whether your Fidaxomicin 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 Fidaxomicin 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 6 of the 6 current Fidaxomicin products on the market today, from 5 companies listing it with the FDA, and lined them up side by side.

Ask about your bottle

Is there something in your Fidaxomicin? 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 Fidaxomicin products list lactose, a gluten source, soy, dyes or gelatin?

  1. LactoseNo checked product

    No checked Fidaxomicin product lists lactose.

  2. Wheat or gluten sourceNo checked product

    No checked Fidaxomicin product lists a wheat or gluten source.

  3. SoyDiffers by manufacturer

    4 of 6 checked products list soy; 2 do not. See the products

    Does not list it Apotex Merck Sharp & Dohme
    Lists it Merck Sharp & Dohme Sandoz Teva Torrent
  4. Synthetic dyesNo checked product

    No checked Fidaxomicin product lists synthetic dyes.

  5. GelatinNo checked product

    No checked Fidaxomicin product lists gelatin.

Also listed by some products: Starch (source not stated) 2 of 6 Corn 5 of 6 Titanium dioxide 5 of 6 PEG or polysorbate 5 of 6

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 Fidaxomicin product and what its label lists

Hide products that list:

ProductListsInactive ingredients on the label
Apotex Corp. 1 product
200 mg tabletNDC 60505-4833-02 Corn-derived Titanium dioxide Polyethylene glycol or polysorbate
Show 10 ingredients

Butylated Hydroxytoluene, Hydroxypropyl Cellulose (1600000 WAMW), Magnesium Stearate, MICROCRYSTALLINE CELLULOSE, Polyethylene Glycol 8000, POLYVINYL ALCOHOL, UNSPECIFIED, Sodium Starch Glycolate Type A Potato, Starch, Corn, Talc, Titanium Dioxide
Merck Sharp & Dohme LLC 2 products
200 mg/5 mL oral suspensionNDC 52015-0700-22 None of these listed
Show 7 ingredients

CITRIC ACID MONOHYDRATE, MICROCRYSTALLINE CELLULOSE, SODIUM BENZOATE, SODIUM CITRATE, UNSPECIFIED FORM, SODIUM STARCH GLYCOLATE TYPE A POTATO, SUCRALOSE, XANTHAN GUM
200 mg tabletNDC 52015-0080-01 Corn-derived Soy Titanium dioxide Polyethylene glycol or polysorbate
Show 11 ingredients

BUTYLATED HYDROXYTOLUENE, HYDROXYPROPYL CELLULOSE (1600000 WAMW), LECITHIN, SOYBEAN, MAGNESIUM STEARATE, MICROCRYSTALLINE CELLULOSE, POLYETHYLENE GLYCOL, UNSPECIFIED, POLYVINYL ALCOHOL, UNSPECIFIED, SODIUM STARCH GLYCOLATE TYPE A POTATO, STARCH, CORN, TALC, TITANIUM DIOXIDE
Sandoz Inc 1 product
200 mg tabletNDC 00781-5194-20 Starch, source not stated Corn-derived Soy Titanium dioxide Polyethylene glycol or polysorbate
Show 11 ingredients

BUTYLATED HYDROXYTOLUENE, HYDROXYPROPYL CELLULOSE (90000 WAMW), MAGNESIUM STEARATE, MICROCRYSTALLINE CELLULOSE, POLYETHYLENE GLYCOL, UNSPECIFIED, POLYVINYL ALCOHOL, UNSPECIFIED, SODIUM STARCH GLYCOLATE TYPE A, SOYBEAN LECITHIN, STARCH, CORN, TALC, TITANIUM DIOXIDE
Teva Pharmaceuticals, Inc. 1 product
200 mg tabletNDC 00480-2596-34 Corn-derived Soy Titanium dioxide Polyethylene glycol or polysorbate
Show 11 ingredients

BUTYLATED HYDROXYTOLUENE, HYDROXYPROPYL CELLULOSE, UNSPECIFIED, LECITHIN, SOYBEAN, MAGNESIUM STEARATE, MICROCRYSTALLINE CELLULOSE, POLYETHYLENE GLYCOL 3350, POLYVINYL ALCOHOL, UNSPECIFIED, SODIUM STARCH GLYCOLATE TYPE A POTATO, STARCH, CORN, TALC, TITANIUM DIOXIDE
Torrent Pharmaceuticals Limited 1 product
200 mg tabletNDC 13668-0745-21 Starch, source not stated Corn-derived Soy Titanium dioxide Polyethylene glycol or polysorbate
Show 11 ingredients

BUTYLATED HYDROXYTOLUENE, HYDROXYPROPYL CELLULOSE (1600000 WAMW), LECITHIN, SOYBEAN, MAGNESIUM STEARATE, MICROCRYSTALLINE CELLULOSE, POLYETHYLENE GLYCOL 3350, POLYVINYL ALCOHOL, SODIUM STARCH GLYCOLATE TYPE A, 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.

Fidaxomicin without soy

Soy: soybean oil or soy lecithin; a concern with soy allergy. 4 of 6 checked products list soy; 2 do not.

Does not list soy

Lists soy

Fidaxomicin without starch of unstated source

Starch, source not stated: the label says "starch" without naming corn, potato, tapioca or rice. 2 of 6 checked products list starch of unstated source; 4 do not.

Does not list starch of unstated source

Lists starch of unstated source

Fidaxomicin without corn-derived ingredients

Corn-derived: corn starch, maize or corn syrup; a concern with corn allergy. 5 of 6 checked products list corn-derived ingredients; 1 does not.

Does not list corn-derived ingredients

Lists corn-derived ingredients

Fidaxomicin without titanium dioxide

Titanium dioxide: A white colorant some people choose to avoid. 5 of 6 checked products list titanium dioxide; 1 does not.

Does not list titanium dioxide

Lists titanium dioxide

Fidaxomicin without polyethylene glycol or polysorbate

Polyethylene glycol or polysorbate: PEG, macrogol or polysorbate; a rare cause of allergic reactions. 5 of 6 checked products list polyethylene glycol or polysorbate; 1 does not.

Does not list polyethylene glycol or polysorbate

Lists polyethylene glycol or polysorbate

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 Fidaxomicin product suits you →

Common questions about Fidaxomicin inactive ingredients

Is Fidaxomicin gluten-free?
This page cannot certify any Fidaxomicin product gluten-free; it reports what each label declares. Of the 6 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 Fidaxomicin contain lactose?
No checked Fidaxomicin 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 Fidaxomicin contain soy?
4 of 6 checked Fidaxomicin products list a soy ingredient (soybean oil or soy lecithin); 2 do not: Apotex (200 mg tablet) and Merck Sharp & Dohme (200 mg/5 mL oral suspension). 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 Fidaxomicin?
No checked Fidaxomicin product 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 Fidaxomicin contain gelatin?
No checked Fidaxomicin 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 Fidaxomicin 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 Fidaxomicin 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 Fidaxomicin guide