Bismuth, Metronidazole, and Tetracycline Inactive Ingredients by Manufacturer

Wondering whether your Bismuth, Metronidazole, and Tetracycline 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 Bismuth, Metronidazole, and Tetracycline 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 read 5 Bismuth, Metronidazole, and Tetracycline FDA labels from 3 companies.

Dr. Brian Staiger, PharmD, BCPS
Curated and coded by , clinical pharmacist Updated October 6, 2026 · how this page is built
Don’t see your specific product? Ask us

Answers from the FDA labels

Ask About the Inactive Ingredients in Your Bismuth, Metronidazole, and Tetracycline

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

Look Up Your Bismuth, Metronidazole, and Tetracycline by NDC, Company or Strength

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.

  • Listed on the labelthe company names it.
  • Not listedthe label does not name it.
  • Source unclearthe label names a starch or maltodextrin without saying what plant it came from.
  • Still being readwe have not finished this label yet.
Bismuth, Metronidazole, and Tetracycline Your bottle Pick a product and this label fills in.

Pick your bottle to read its label, or tap an ingredient to see which Bismuth, Metronidazole, and Tetracycline products leave it out.

At a glance

Which Bismuth, Metronidazole, and Tetracycline Products List Lactose, a Gluten Source, Soy, Dyes or Gelatin?

  1. LactoseDiffers by manufacturer

    4 of 5 checked products list lactose; 1 does not. See which products do not list it

  2. Wheat or gluten sourceNo checked product

    No checked Bismuth, Metronidazole, and Tetracycline product lists a wheat or gluten source.

  3. SoyDiffers by manufacturer

    1 of 5 checked products list soy; 4 do not. See which products do not list it

  4. Synthetic dyesDiffers by manufacturer

    1 of 5 checked products list synthetic dyes; 4 do not. See which products do not list it

  5. GelatinEvery checked product

    Every checked Bismuth, Metronidazole, and Tetracycline product (5) lists gelatin. See the products

Also listed by some products: Corn 1 of 5 Titanium dioxide 5 of 5 Carmine or shellac 2 of 5 Propylene glycol 2 of 5

Find a version without it

Every Current Bismuth, Metronidazole, and Tetracycline 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:

Bismuth, Metronidazole, and Tetracycline BISMUTH SUBCITRATE POTASSIUM 140 mg/1; METRONIDAZOLE 125 mg/1; TETRACYCLINE HYDROCHLORIDE 125 mg capsule 5 companies Lactose 4 Titanium dioxide 5 Gelatin 5 Carmine or shellac 2 Propylene glycol 2 Corn-derived 1 Soy 1 Synthetic dyes 1
CompanyListsInactive ingredients on the label
H2-PharmaNDC 61269-0380-12 Lactose Titanium dioxide Gelatin
Show 5 ingredients

GELATIN, UNSPECIFIED, LACTOSE MONOHYDRATE, MAGNESIUM STEARATE, TALC, TITANIUM DIOXIDE
H2-PharmaNDC 61269-0381-12 Lactose Titanium dioxide Gelatin
Show 5 ingredients

GELATIN, LACTOSE MONOHYDRATE, MAGNESIUM STEARATE, TALC, TITANIUM DIOXIDE
H2-PharmaNDC 61269-0386-12 Lactose Titanium dioxide Gelatin
Show 5 ingredients

GELATIN, LACTOSE MONOHYDRATE, MAGNESIUM STEARATE, TALC, TITANIUM DIOXIDE
IngenusNDC 50742-0283-13 Lactose Titanium dioxide Gelatin Carmine or shellac Propylene glycol
Show 9 ingredients

AMMONIA, FERROSOFERRIC OXIDE, GELATIN, LACTOSE MONOHYDRATE, MAGNESIUM STEARATE, PROPYLENE GLYCOL, SHELLAC, TALC, TITANIUM DIOXIDE
Par HealthNDC 49884-0151-54 Corn-derived Soy Synthetic dyes Titanium dioxide Gelatin Carmine or shellac Propylene glycol
Show 18 ingredients

FD&C BLUE NO. 2, FD&C RED NO. 40, GELATIN, LECITHIN, SOYBEAN, MAGNESIUM STEARATE, MICROCRYSTALLINE CELLULOSE, POLYVINYL ALCOHOL, UNSPECIFIED, POVIDONE, PROPYLENE GLYCOL, SHELLAC, SILICON DIOXIDE, SODIUM HYDROXIDE, SODIUM LAURYL SULFATE, SODIUM STEARYL FUMARATE, STARCH, CORN, TALC, TITANIUM DIOXIDE, XANTHAN GUM

A product with none of these on its label may still contain them. The label shows only what the company listed, and it often does not say where a starch or a flavor comes from. Some companies here repackage or sell another company's product under their own name. Tap an NDC to open that product's page with its full label.

Bismuth, Metronidazole, and Tetracycline Without Lactose

Lactose: milk sugar; a concern with lactose intolerance or a milk allergy. 4 of 5 checked products list lactose; 1 does not.

Show which Bismuth, Metronidazole, and Tetracycline products list lactose and which do not, by product and company

Does Not List Lactose

Lists Lactose

Bismuth, Metronidazole, and Tetracycline Without Soy

Soy: soybean oil or soy lecithin; a concern with soy allergy. 1 of 5 checked products list soy; 4 do not.

Show which Bismuth, Metronidazole, and Tetracycline products list soy and which do not, by product and company

Does Not List Soy

Lists Soy

Bismuth, Metronidazole, and Tetracycline Without Synthetic Dyes

Synthetic dyes: FD&C or D&C colorants and their aluminum lakes. 1 of 5 checked products list synthetic dyes; 4 do not.

Show which Bismuth, Metronidazole, and Tetracycline products list synthetic dyes and which do not, by product and company

Does Not List Synthetic Dyes

Lists Synthetic Dyes

Bismuth, Metronidazole, and Tetracycline and Gelatin

Gelatin: animal-derived (usually bovine or porcine); a concern for vegetarian, kosher or halal needs. Every checked Bismuth, Metronidazole, and Tetracycline product (5) lists gelatin.

Show which Bismuth, Metronidazole, and Tetracycline products list gelatin and which do not, by product and company

Lists Gelatin

Bismuth, Metronidazole, and Tetracycline Without Corn-Derived Ingredients

Corn-derived: corn starch, maize or corn syrup; a concern with corn allergy. 1 of 5 checked products list corn-derived ingredients; 4 do not.

Show which Bismuth, Metronidazole, and Tetracycline products list corn-derived ingredients and which do not, by product and company

Does Not List Corn-Derived Ingredients

Lists Corn-Derived Ingredients

Bismuth, Metronidazole, and Tetracycline and Titanium Dioxide

Titanium dioxide: A white colorant some people choose to avoid. Every checked Bismuth, Metronidazole, and Tetracycline product (5) lists titanium dioxide.

Show which Bismuth, Metronidazole, and Tetracycline products list titanium dioxide and which do not, by product and company

Lists Titanium Dioxide

Bismuth, Metronidazole, and Tetracycline Without Carmine or Shellac

Carmine or shellac: insect-derived red colorant or coating glaze. 2 of 5 checked products list carmine or shellac; 3 do not.

Show which Bismuth, Metronidazole, and Tetracycline products list carmine or shellac and which do not, by product and company

Does Not List Carmine or Shellac

Lists Carmine or Shellac

Bismuth, Metronidazole, and Tetracycline Without Propylene Glycol

Propylene glycol: A solvent in liquids and capsules; a concern in kidney disease, for infants, and at high doses. 2 of 5 checked products list propylene glycol; 3 do not.

Show which Bismuth, Metronidazole, and Tetracycline products list propylene glycol and which do not, by product and company

Does Not List Propylene Glycol

Lists Propylene Glycol

At the pharmacy counter

How to Get the Version You Want at the Pharmacy

  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 Bismuth, Metronidazole, and Tetracycline product suits you →

Common Questions About Bismuth, Metronidazole, and Tetracycline Inactive Ingredients

Is Bismuth, Metronidazole, and Tetracycline gluten-free?
This page cannot promise any Bismuth, Metronidazole, and Tetracycline product has no gluten; it reports what each label declares. Of the 5 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 Bismuth, Metronidazole, and Tetracycline contain lactose?
4 of 5 checked Bismuth, Metronidazole, and Tetracycline products list lactose; 1 does not: Par Health (BISMUTH SUBCITRATE POTASSIUM 140 mg/1; METRONIDAZOLE 125 mg/1; TETRACYCLINE HYDROCHLORIDE 125 mg capsule). 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 Bismuth, Metronidazole, and Tetracycline contain soy?
1 of 5 checked Bismuth, Metronidazole, and Tetracycline products list a soy ingredient (soybean oil or soy lecithin); 4 do not: H2-Pharma (BISMUTH SUBCITRATE POTASSIUM 140 mg/1; METRONIDAZOLE 125 mg/1; TETRACYCLINE HYDROCHLORIDE 125 mg capsule) and Ingenus (BISMUTH SUBCITRATE POTASSIUM 140 mg/1; METRONIDAZOLE 125 mg/1; TETRACYCLINE HYDROCHLORIDE 125 mg capsule). 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 Bismuth, Metronidazole, and Tetracycline?
1 of 5 checked Bismuth, Metronidazole, and Tetracycline products list a synthetic dye (an FD&C or D&C colorant); 4 do not: H2-Pharma (BISMUTH SUBCITRATE POTASSIUM 140 mg/1; METRONIDAZOLE 125 mg/1; TETRACYCLINE HYDROCHLORIDE 125 mg capsule) and Ingenus (BISMUTH SUBCITRATE POTASSIUM 140 mg/1; METRONIDAZOLE 125 mg/1; TETRACYCLINE HYDROCHLORIDE 125 mg capsule). Colorants often differ by strength within one company's line, so compare the lists above strength by strength.
Does Bismuth, Metronidazole, and Tetracycline contain gelatin?
Every checked Bismuth, Metronidazole, and Tetracycline product (5) 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 Bismuth, Metronidazole, and Tetracycline product can list lactose and a dye while another from a different company lists neither.
What can a label not tell me?
A label tells you every inactive ingredient the company names for that product. It cannot tell you where an unnamed flavor, starch or maltodextrin came from, whether traces come from shared equipment, or about a change made after our last read of the label (October 6, 2026). Your pharmacist can check with the manufacturer.
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?
We have read the FDA labels of 5 of the 5 current Bismuth, Metronidazole, and Tetracycline products on the market today, from 3 companies listing it with the FDA, and lined them up side by side. 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 Bismuth, Metronidazole, and Tetracycline 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 Bismuth, Metronidazole, and Tetracycline guide