Macrocrystalline / Nitrofurantoin Inactive Ingredients by Manufacturer

Wondering whether your Macrocrystalline / Nitrofurantoin 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 Macrocrystalline / Nitrofurantoin 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 Macrocrystalline / Nitrofurantoin FDA labels from 4 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 Macrocrystalline / Nitrofurantoin

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 Macrocrystalline / Nitrofurantoin 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.
Macrocrystalline / Nitrofurantoin Your bottle Pick a product and this label fills in.

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

At a glance

Which Macrocrystalline / Nitrofurantoin Products List Lactose, a Gluten Source, Soy, Dyes or Gelatin?

  1. LactoseEvery checked product

    Every checked Macrocrystalline / Nitrofurantoin product (5) lists lactose. See the products

  2. Wheat or gluten sourceNo checked product

    No checked Macrocrystalline / Nitrofurantoin product lists a wheat or gluten source.

  3. SoyNo checked product

    No checked Macrocrystalline / Nitrofurantoin product lists soy.

  4. Synthetic dyesEvery checked product

    Every checked Macrocrystalline / Nitrofurantoin product (5) lists synthetic dyes. See the products

  5. GelatinEvery checked product

    Every checked Macrocrystalline / Nitrofurantoin product (5) lists gelatin. See the products

Also listed by some products: Corn 5 of 5 Titanium dioxide 5 of 5 Sugar 4 of 5

Find a version without it

Every Current Macrocrystalline / Nitrofurantoin 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:

Macrocrystalline / Nitrofurantoin NITROFURANTOIN 25 mg/1; NITROFURANTOIN MONOHYDRATE 75 mg capsule 5 companies Lactose 5 Corn-derived 5 Synthetic dyes 5 Titanium dioxide 5 Gelatin 5 Sugar (sucrose, dextrose) 4
CompanyListsInactive ingredients on the label
AlmaticaNDC 52427-0285-01 Lactose Corn-derived Synthetic dyes Titanium dioxide Gelatin Sugar (sucrose, dextrose)
Show 12 ingredients

CARBOMER HOMOPOLYMER TYPE B (ALLYL SUCROSE CROSSLINKED), D&C YELLOW NO. 10, FD&C BLUE NO. 1, FD&C RED NO. 40, GELATIN, UNSPECIFIED, LACTOSE, UNSPECIFIED FORM, MAGNESIUM STEARATE, POVIDONE, UNSPECIFIED, STARCH, CORN, SUCROSE, TALC, TITANIUM DIOXIDE
AlvogenNDC 47781-0303-01 Lactose Corn-derived Synthetic dyes Titanium dioxide Gelatin Sugar (sucrose, dextrose)
Show 12 ingredients

CARBOMER HOMOPOLYMER TYPE B (ALLYL SUCROSE CROSSLINKED), D&C YELLOW NO. 10, FD&C BLUE NO. 1, FD&C RED NO. 40, GELATIN, UNSPECIFIED, LACTOSE, UNSPECIFIED FORM, MAGNESIUM STEARATE, POVIDONE, UNSPECIFIED, STARCH, CORN, SUCROSE, TALC, TITANIUM DIOXIDE
Proficient RxNDC 63187-0263-10 Other pack sizes, same label: 63187-0263-14, 63187-0263-28, 63187-0263-30, 63187-0263-60 Lactose Corn-derived Synthetic dyes Titanium dioxide Gelatin
Show 11 ingredients

CARBOMER HOMOPOLYMER TYPE B (ALLYL PENTAERYTHRITOL CROSSLINKED), CROSPOVIDONE, D&C YELLOW NO. 10, FD&C BLUE NO. 1, FD&C RED NO. 40, GELATIN, UNSPECIFIED, LACTOSE, UNSPECIFIED FORM, MAGNESIUM STEARATE, STARCH, CORN, TALC, TITANIUM DIOXIDE
RemedyrepackNDC 70518-0265-00 Other pack sizes, same label: 70518-0265-01, 70518-0265-03 Lactose Corn-derived Synthetic dyes Titanium dioxide Gelatin Sugar (sucrose, dextrose)
Show 12 ingredients

CARBOMER HOMOPOLYMER TYPE B (ALLYL SUCROSE CROSSLINKED), D&C YELLOW NO. 10, FD&C BLUE NO. 1, FD&C RED NO. 40, GELATIN, UNSPECIFIED, LACTOSE, UNSPECIFIED FORM, MAGNESIUM STEARATE, POVIDONE, UNSPECIFIED, STARCH, CORN, SUCROSE, TALC, TITANIUM DIOXIDE
RemedyrepackNDC 70518-2531-00 Lactose Corn-derived Synthetic dyes Titanium dioxide Gelatin Sugar (sucrose, dextrose)
Show 12 ingredients

CARBOMER HOMOPOLYMER TYPE B (ALLYL SUCROSE CROSSLINKED), D&C YELLOW NO. 10, FD&C BLUE NO. 1, FD&C RED NO. 40, GELATIN, UNSPECIFIED, LACTOSE, UNSPECIFIED FORM, MAGNESIUM STEARATE, POVIDONE, UNSPECIFIED, STARCH, CORN, SUCROSE, TALC, TITANIUM DIOXIDE

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.

Macrocrystalline / Nitrofurantoin and Lactose

Lactose: milk sugar; a concern with lactose intolerance or a milk allergy. Every checked Macrocrystalline / Nitrofurantoin product (5) lists lactose.

Show which Macrocrystalline / Nitrofurantoin products list lactose and which do not, by product and company

Lists Lactose

Macrocrystalline / Nitrofurantoin and Synthetic Dyes

Synthetic dyes: FD&C or D&C colorants and their aluminum lakes. Every checked Macrocrystalline / Nitrofurantoin product (5) lists synthetic dyes.

Show which Macrocrystalline / Nitrofurantoin products list synthetic dyes and which do not, by product and company

Lists Synthetic Dyes

Macrocrystalline / Nitrofurantoin and Gelatin

Gelatin: animal-derived (usually bovine or porcine); a concern for vegetarian, kosher or halal needs. Every checked Macrocrystalline / Nitrofurantoin product (5) lists gelatin.

Show which Macrocrystalline / Nitrofurantoin products list gelatin and which do not, by product and company

Lists Gelatin

Macrocrystalline / Nitrofurantoin and Corn-Derived Ingredients

Corn-derived: corn starch, maize or corn syrup; a concern with corn allergy. Every checked Macrocrystalline / Nitrofurantoin product (5) lists corn-derived ingredients.

Show which Macrocrystalline / Nitrofurantoin products list corn-derived ingredients and which do not, by product and company

Lists Corn-Derived Ingredients

Macrocrystalline / Nitrofurantoin and Titanium Dioxide

Titanium dioxide: A white colorant some people choose to avoid. Every checked Macrocrystalline / Nitrofurantoin product (5) lists titanium dioxide.

Show which Macrocrystalline / Nitrofurantoin products list titanium dioxide and which do not, by product and company

Lists Titanium Dioxide

Macrocrystalline / Nitrofurantoin Without Sugar (Sucrose or Dextrose)

Sugar (sucrose, dextrose): A consideration in diabetes, mostly in liquids and chewables. 4 of 5 checked products list sugar (sucrose or dextrose); 1 does not.

Show which Macrocrystalline / Nitrofurantoin products list sugar (sucrose or dextrose) and which do not, by product and company

Does Not List Sugar (Sucrose or Dextrose)

Lists Sugar (Sucrose or Dextrose)

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 Macrocrystalline / Nitrofurantoin product suits you →

Common Questions About Macrocrystalline / Nitrofurantoin Inactive Ingredients

Is Macrocrystalline / Nitrofurantoin gluten-free?
This page cannot promise any Macrocrystalline / Nitrofurantoin 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 Macrocrystalline / Nitrofurantoin contain lactose?
Every checked Macrocrystalline / Nitrofurantoin product (5) 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 Macrocrystalline / Nitrofurantoin contain soy?
No checked Macrocrystalline / Nitrofurantoin 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 Macrocrystalline / Nitrofurantoin?
Every checked Macrocrystalline / Nitrofurantoin product (5) 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 Macrocrystalline / Nitrofurantoin contain gelatin?
Every checked Macrocrystalline / Nitrofurantoin 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 Macrocrystalline / Nitrofurantoin 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 Macrocrystalline / Nitrofurantoin products on the market today, from 4 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 Macrocrystalline / Nitrofurantoin 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 Macrocrystalline / Nitrofurantoin guide