Inactive ingredients by manufacturer

Metformin / Pioglitazone inactive ingredients by manufacturer

Wondering whether your Metformin / Pioglitazone 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 Metformin / Pioglitazone 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 11 of the 11 current Metformin / Pioglitazone products on the market today, from 6 companies listing it with the FDA, and lined them up side by side.

Ask about your bottle

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

  1. LactoseDiffers by manufacturer

    4 of 11 checked products list lactose; 7 do not. See the products

    Does not list it Bryant Ranch Prepack Macleods Takeda Torrent
    Lists it Aurobindo Rising
  2. Wheat or gluten sourceNo checked product

    No checked Metformin / Pioglitazone product lists a wheat or gluten source.

  3. SoyNo checked product

    No checked Metformin / Pioglitazone product lists soy.

  4. Synthetic dyesNo checked product

    No checked Metformin / Pioglitazone product lists synthetic dyes.

  5. GelatinNo checked product

    No checked Metformin / Pioglitazone product lists gelatin.

Also listed by some products: Titanium dioxide 11 of 11 PEG or polysorbate 11 of 11

Find a version without it

Every current Metformin / Pioglitazone product and what its label lists

Hide products that list:

ProductListsInactive ingredients on the label
Aurobindo Pharma Limited 2 products
PIOGLITAZONE HYDROCHLORIDE 15 mg/1; METFORMIN HYDROCHLORIDE 500 mg tabletNDC 65862-0525-18 Lactose Titanium dioxide Polyethylene glycol or polysorbate
Show 8 ingredients

CARBOXYMETHYLCELLULOSE CALCIUM, HYDROXYPROPYL CELLULOSE (1600000 WAMW), HYPROMELLOSE 2910 (5 MPA.S), LACTOSE MONOHYDRATE, MAGNESIUM STEARATE, POLYETHYLENE GLYCOL 6000, TALC, TITANIUM DIOXIDE
PIOGLITAZONE HYDROCHLORIDE 15 mg/1; METFORMIN HYDROCHLORIDE 850 mg tabletNDC 65862-0526-18 Lactose Titanium dioxide Polyethylene glycol or polysorbate
Show 8 ingredients

CARBOXYMETHYLCELLULOSE CALCIUM, HYDROXYPROPYL CELLULOSE (1600000 WAMW), HYPROMELLOSE 2910 (5 MPA.S), LACTOSE MONOHYDRATE, MAGNESIUM STEARATE, POLYETHYLENE GLYCOL 6000, TALC, TITANIUM DIOXIDE
Bryant Ranch Prepack 2 products
PIOGLITAZONE HYDROCHLORIDE 15 mg/1; METFORMIN HYDROCHLORIDE 500 mg tabletNDC 71335-3019-01 Titanium dioxide Polyethylene glycol or polysorbate
Show 8 ingredients

CROSCARMELLOSE SODIUM, HYPROMELLOSE, UNSPECIFIED, MAGNESIUM STEARATE, MICROCRYSTALLINE CELLULOSE, POLYETHYLENE GLYCOL, UNSPECIFIED, POVIDONE, UNSPECIFIED, TALC, TITANIUM DIOXIDE
PIOGLITAZONE HYDROCHLORIDE 15 mg/1; METFORMIN HYDROCHLORIDE 850 mg tabletNDC 71335-3020-01 Titanium dioxide Polyethylene glycol or polysorbate
Show 8 ingredients

CROSCARMELLOSE SODIUM, HYPROMELLOSE, UNSPECIFIED, MAGNESIUM STEARATE, MICROCRYSTALLINE CELLULOSE, POLYETHYLENE GLYCOL, UNSPECIFIED, POVIDONE, UNSPECIFIED, TALC, TITANIUM DIOXIDE
Macleods Pharmaceuticals Limited 2 products
METFORMIN HYDROCHLORIDE 500 mg/1; PIOGLITAZONE HYDROCHLORIDE 15 mg tabletNDC 33342-0176-09 Titanium dioxide Polyethylene glycol or polysorbate
Show 8 ingredients

CELLULOSE, MICROCRYSTALLINE, CROSCARMELLOSE SODIUM, HYPROMELLOSES, MAGNESIUM STEARATE, POLYETHYLENE GLYCOL, UNSPECIFIED, POVIDONE, TALC, TITANIUM DIOXIDE
METFORMIN HYDROCHLORIDE 850 mg/1; PIOGLITAZONE HYDROCHLORIDE 15 mg tabletNDC 33342-0177-09 Titanium dioxide Polyethylene glycol or polysorbate
Show 8 ingredients

CELLULOSE, MICROCRYSTALLINE, CROSCARMELLOSE SODIUM, HYPROMELLOSES, MAGNESIUM STEARATE, POLYETHYLENE GLYCOL, UNSPECIFIED, POVIDONE, TALC, TITANIUM DIOXIDE
Rising Pharma Holdings, Inc. 2 products
PIOGLITAZONE HYDROCHLORIDE 15 mg/1; METFORMIN HYDROCHLORIDE 500 mg tabletNDC 57237-0217-60 Lactose Titanium dioxide Polyethylene glycol or polysorbate
Show 8 ingredients

CARBOXYMETHYLCELLULOSE CALCIUM, HYDROXYPROPYL CELLULOSE (1600000 WAMW), HYPROMELLOSE 2910 (5 MPA.S), LACTOSE MONOHYDRATE, MAGNESIUM STEARATE, POLYETHYLENE GLYCOL 6000, TALC, TITANIUM DIOXIDE
PIOGLITAZONE HYDROCHLORIDE 15 mg/1; METFORMIN HYDROCHLORIDE 850 mg tabletNDC 57237-0218-60 Lactose Titanium dioxide Polyethylene glycol or polysorbate
Show 8 ingredients

CARBOXYMETHYLCELLULOSE CALCIUM, HYDROXYPROPYL CELLULOSE (1600000 WAMW), HYPROMELLOSE 2910 (5 MPA.S), LACTOSE MONOHYDRATE, MAGNESIUM STEARATE, POLYETHYLENE GLYCOL 6000, TALC, TITANIUM DIOXIDE
Takeda Pharmaceuticals America, Inc. 1 product
PIOGLITAZONE HYDROCHLORIDE 850 mg/1; METFORMIN HYDROCHLORIDE 15 mg tabletNDC 64764-0158-18 Titanium dioxide Polyethylene glycol or polysorbate
Show 8 ingredients

croscarmellose sodium, hypromellose 2910 (6 MPA.S), magnesium stearate, microcrystalline cellulose, polyethylene glycol 8000, POVIDONE, UNSPECIFIED, talc, titanium dioxide
Torrent Pharmaceuticals Limited 2 products
METFORMIN HYDROCHLORIDE 500 mg/1; PIOGLITAZONE HYDROCHLORIDE 15 mg tabletNDC 13668-0280-05 Titanium dioxide Polyethylene glycol or polysorbate
Show 8 ingredients

CELLULOSE, MICROCRYSTALLINE, CROSCARMELLOSE SODIUM, HYPROMELLOSE 2910 (6 MPA.S), MAGNESIUM STEARATE, POLYETHYLENE GLYCOL 8000, POVIDONE K30, TALC, TITANIUM DIOXIDE
METFORMIN HYDROCHLORIDE 850 mg/1; PIOGLITAZONE HYDROCHLORIDE 15 mg tabletNDC 13668-0281-05 Titanium dioxide Polyethylene glycol or polysorbate
Show 8 ingredients

CELLULOSE, MICROCRYSTALLINE, CROSCARMELLOSE SODIUM, HYPROMELLOSE 2910 (6 MPA.S), MAGNESIUM STEARATE, POLYETHYLENE GLYCOL 8000, POVIDONE K30, 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.

Metformin / Pioglitazone without lactose

Lactose: milk sugar; a concern with lactose intolerance or a milk allergy. 4 of 11 checked products list lactose; 7 do not.

Does not list lactose

Lists lactose

Metformin / Pioglitazone and titanium dioxide

Titanium dioxide: A white colorant some people choose to avoid. Every checked Metformin / Pioglitazone product (11) lists titanium dioxide.

Lists titanium dioxide

Metformin / Pioglitazone and polyethylene glycol or polysorbate

Polyethylene glycol or polysorbate: PEG, macrogol or polysorbate; a rare cause of allergic reactions. Every checked Metformin / Pioglitazone product (11) lists 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 Metformin / Pioglitazone product suits you →

Common questions about Metformin / Pioglitazone inactive ingredients

Is Metformin / Pioglitazone gluten-free?
This page cannot certify any Metformin / Pioglitazone product gluten-free; it reports what each label declares. Of the 11 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 Metformin / Pioglitazone contain lactose?
4 of 11 checked Metformin / Pioglitazone products list lactose; 7 do not: Bryant Ranch Prepack (PIOGLITAZONE HYDROCHLORIDE 15 mg/1; METFORMIN HYDROCHLORIDE 500 mg tablet and PIOGLITAZONE HYDROCHLORIDE 15 mg/1; METFORMIN HYDROCHLORIDE 850 mg tablet), Macleods (METFORMIN HYDROCHLORIDE 500 mg/1; PIOGLITAZONE HYDROCHLORIDE 15 mg tablet and METFORMIN HYDROCHLORIDE 850 mg/1; PIOGLITAZONE HYDROCHLORIDE 15 mg tablet), Takeda (PIOGLITAZONE HYDROCHLORIDE 850 mg/1; METFORMIN HYDROCHLORIDE 15 mg tablet) and Torrent (METFORMIN HYDROCHLORIDE 500 mg/1; PIOGLITAZONE HYDROCHLORIDE 15 mg tablet and METFORMIN HYDROCHLORIDE 850 mg/1; PIOGLITAZONE HYDROCHLORIDE 15 mg tablet). 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 Metformin / Pioglitazone contain soy?
No checked Metformin / Pioglitazone 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 Metformin / Pioglitazone?
No checked Metformin / Pioglitazone 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 Metformin / Pioglitazone contain gelatin?
No checked Metformin / Pioglitazone 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 Metformin / Pioglitazone 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 Metformin / Pioglitazone 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 Metformin / Pioglitazone guide