Inactive ingredients by manufacturer

Trimethobenzamide inactive ingredients by manufacturer

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

Ask about your bottle

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

  1. LactoseDiffers by manufacturer

    4 of 7 checked products list lactose; 3 do not. See the products

    Does not list it BPI Henry Schein Par Health
    Lists it Bryant Ranch Prepack Chartwell RX Heritage Pharmaceuticals Inc. d/b/a Avet Lupin
  2. Wheat or gluten sourceNo checked product

    No checked Trimethobenzamide product lists a wheat or gluten source.

  3. SoyDiffers by manufacturer

    2 of 7 checked products list soy; 5 do not. See the products

    Does not list it BPI Chartwell RX Henry Schein Heritage Pharmaceuticals Inc. d/b/a Avet Par Health
    Lists it Bryant Ranch Prepack Lupin
  4. Synthetic dyesDiffers by manufacturer

    4 of 7 checked products list synthetic dyes; 3 do not. See the products

    Does not list it BPI Henry Schein Par Health
    Lists it Bryant Ranch Prepack Chartwell RX Heritage Pharmaceuticals Inc. d/b/a Avet Lupin
  5. GelatinDiffers by manufacturer

    4 of 7 checked products list gelatin; 3 do not. See the products

    Does not list it BPI Henry Schein Par Health
    Lists it Bryant Ranch Prepack Chartwell RX Heritage Pharmaceuticals Inc. d/b/a Avet Lupin

Also listed by some products: Corn 4 of 7 Titanium dioxide 4 of 7 Carmine or shellac 4 of 7 Alcohol 2 of 7 Propylene glycol 2 of 7

Find a version without it

Every current Trimethobenzamide product and what its label lists

Hide products that list:

ProductListsInactive ingredients on the label
BPI Labs, LLC 1 product
100 mg/mL injectionNDC 54288-0158-25 None of these listed
Show 2 ingredients

CITRIC ACID MONOHYDRATE, SODIUM CITRATE
Bryant Ranch Prepack 1 product
300 mg capsuleNDC 71335-0800-01 Lactose Corn-derived Soy Synthetic dyes Titanium dioxide Gelatin Carmine or shellac
Show 12 ingredients

D&C RED NO. 28, ETHYLENE GLYCOL MONOETHYL ETHER, FD&C BLUE NO. 1, FD&C RED NO. 40, GELATIN, UNSPECIFIED, LACTOSE MONOHYDRATE, LECITHIN, SOYBEAN, MAGNESIUM STEARATE, SHELLAC, STARCH, CORN, TITANIUM DIOXIDE, WATER
Chartwell RX, LLC 1 product
300 mg capsuleNDC 62135-0773-30 Lactose Corn-derived Synthetic dyes Titanium dioxide Gelatin Carmine or shellac Alcohol (ethanol) Propylene glycol
Show 15 ingredients

AMMONIA, BUTYL ALCOHOL, D&C RED NO. 28, DEHYDRATED ALCOHOL, FD&C BLUE NO. 1, GELATIN, UNSPECIFIED, ISOPROPYL ALCOHOL, LACTOSE MONOHYDRATE, MAGNESIUM STEARATE, POTASSIUM HYDROXIDE, PROPYLENE GLYCOL, SHELLAC, SODIUM LAURYL SULFATE, STARCH, CORN, TITANIUM DIOXIDE
Henry Schein, Inc 1 product
100 mg/mL injectionNDC 00404-9964-02 None of these listed
Show 2 ingredients

CITRIC ACID MONOHYDRATE, SODIUM CITRATE
Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc. 1 product
300 mg capsuleNDC 23155-0180-01 Lactose Corn-derived Synthetic dyes Titanium dioxide Gelatin Carmine or shellac Alcohol (ethanol) Propylene glycol
Show 15 ingredients

AMMONIA, BUTYL ALCOHOL, D&C RED NO. 28, DEHYDRATED ALCOHOL, FD&C BLUE NO. 1, GELATIN, ISOPROPYL ALCOHOL, LACTOSE MONOHYDRATE, MAGNESIUM STEARATE, POTASSIUM HYDROXIDE, PROPYLENE GLYCOL, SHELLAC, SODIUM LAURYL SULFATE, STARCH, CORN, TITANIUM DIOXIDE
Lupin Pharmaceuticals,Inc. 1 product
300 mg capsuleNDC 43386-0660-03 Lactose Corn-derived Soy Synthetic dyes Titanium dioxide Gelatin Carmine or shellac
Show 12 ingredients

D&C RED NO. 28, ETHYLENE GLYCOL MONOETHYL ETHER, FD&C BLUE NO. 1, FD&C RED NO. 40, GELATIN, LACTOSE MONOHYDRATE, LECITHIN, SOYBEAN, MAGNESIUM STEARATE, SHELLAC, STARCH, CORN, TITANIUM DIOXIDE, WATER
Par Health USA, LLC 1 product
100 mg/mL injectionNDC 42023-0119-25 None of these listed
Show 2 ingredients

CITRIC ACID MONOHYDRATE, SODIUM CITRATE

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.

Trimethobenzamide without lactose

Lactose: milk sugar; a concern with lactose intolerance or a milk allergy. 4 of 7 checked products list lactose; 3 do not.

Does not list lactose

Lists lactose

Trimethobenzamide without soy

Soy: soybean oil or soy lecithin; a concern with soy allergy. 2 of 7 checked products list soy; 5 do not.

Does not list soy

Lists soy

Trimethobenzamide without synthetic dyes

Synthetic dyes: FD&C or D&C colorants and their aluminum lakes. 4 of 7 checked products list synthetic dyes; 3 do not.

Does not list synthetic dyes

Lists synthetic dyes

Trimethobenzamide without gelatin

Gelatin: animal-derived (usually bovine or porcine); a concern for vegetarian, kosher or halal needs. 4 of 7 checked products list gelatin; 3 do not.

Does not list gelatin

Lists gelatin

Trimethobenzamide without corn-derived ingredients

Corn-derived: corn starch, maize or corn syrup; a concern with corn allergy. 4 of 7 checked products list corn-derived ingredients; 3 do not.

Does not list corn-derived ingredients

Lists corn-derived ingredients

Trimethobenzamide without titanium dioxide

Titanium dioxide: A white colorant some people choose to avoid. 4 of 7 checked products list titanium dioxide; 3 do not.

Does not list titanium dioxide

Lists titanium dioxide

Trimethobenzamide without carmine or shellac

Carmine or shellac: insect-derived red colorant or coating glaze. 4 of 7 checked products list carmine or shellac; 3 do not.

Does not list carmine or shellac

Lists carmine or shellac

Trimethobenzamide without alcohol (ethanol)

Alcohol (ethanol): mostly in liquids; a concern in alcohol recovery, for children, or with disulfiram or metronidazole. 2 of 7 checked products list alcohol (ethanol); 5 do not.

Does not list alcohol (ethanol)

Lists alcohol (ethanol)

Trimethobenzamide without propylene glycol

Propylene glycol: A solvent in liquids and capsules; a concern in kidney disease, for infants, and at high doses. 2 of 7 checked products list propylene glycol; 5 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 Trimethobenzamide product suits you →

Common questions about Trimethobenzamide inactive ingredients

Is Trimethobenzamide gluten-free?
This page cannot certify any Trimethobenzamide 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 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 Trimethobenzamide contain lactose?
4 of 7 checked Trimethobenzamide products list lactose; 3 do not: BPI (100 mg/mL injection), Henry Schein (100 mg/mL injection) and Par Health (100 mg/mL injection). 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 Trimethobenzamide contain soy?
2 of 7 checked Trimethobenzamide products list a soy ingredient (soybean oil or soy lecithin); 5 do not: BPI (100 mg/mL injection), Chartwell RX (300 mg capsule), Henry Schein (100 mg/mL injection) and Heritage Pharmaceuticals Inc. d/b/a Avet (300 mg capsule) and 1 other company. 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 Trimethobenzamide?
4 of 7 checked Trimethobenzamide products list a synthetic dye (an FD&C or D&C colorant); 3 do not: BPI (100 mg/mL injection), Henry Schein (100 mg/mL injection) and Par Health (100 mg/mL injection). Colorants often differ by strength within one company's line, so compare the lists above strength by strength.
Does Trimethobenzamide contain gelatin?
4 of 7 checked Trimethobenzamide products list gelatin; 3 do not: BPI (100 mg/mL injection), Henry Schein (100 mg/mL injection) and Par Health (100 mg/mL injection). 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 Trimethobenzamide 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 Trimethobenzamide 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 Trimethobenzamide guide