Inactive ingredients by manufacturer

Procainamide inactive ingredients by manufacturer

Wondering whether your Procainamide 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 Procainamide 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 16 of the 16 current Procainamide products on the market today, from 11 companies listing it with the FDA, and lined them up side by side.

Dr. Brian Staiger, PharmD, BCPS
Curated and coded by Dr. Brian Staiger, PharmD, BCPS, clinical pharmacist LinkedIn Updated October 6, 2026 · how this page is built

Ask about your bottle

Is there something in your Procainamide? 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.

Check your bottle

Let's take a closer look at your Procainamide.

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.

Procainamide Your bottle Pick a product and this label fills in.

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

At a glance

Which Procainamide products list lactose, a gluten source, soy, dyes or gelatin?

  1. LactoseNo checked product

    No checked Procainamide product lists lactose.

  2. Wheat or gluten sourceNo checked product

    No checked Procainamide product lists a wheat or gluten source.

  3. SoyNo checked product

    No checked Procainamide product lists soy.

  4. Synthetic dyesNo checked product

    No checked Procainamide product lists synthetic dyes.

  5. GelatinNo checked product

    No checked Procainamide product lists gelatin.

Also listed by some products: Sulfites 16 of 16 Benzyl alcohol 4 of 16

Find a version without it

Every current Procainamide 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:

Procainamide 100 mg/mL injection 12 companies Sulfites 12 Benzyl alcohol 4
CompanyListsInactive ingredients on the label
Caplin SterilesNDC 65145-0155-10 Sulfites
Show 5 ingredients

HYDROCHLORIC ACID, METHYLPARABEN, SODIUM HYDROXIDE, SODIUM METABISULFITE, WATER
GlandNDC 68083-0603-25 Sulfites
Show 5 ingredients

HYDROCHLORIC ACID, METHYLPARABEN, SODIUM HYDROXIDE, SODIUM METABISULFITE, WATER
HF Acquisition Co LLC, DBA HealthFirstNDC 51662-1334-01 Other pack sizes, same label: 51662-1334-03 Sulfites
Show 5 ingredients

HYDROCHLORIC ACID, METHYLPARABEN, SODIUM HYDROXIDE, SODIUM METABISULFITE, WATER
HF Acquisition Co LLC, DBA HealthFirstNDC 51662-1630-03 Sulfites Benzyl alcohol
Show 4 ingredients

BENZYL ALCOHOL, HYDROCHLORIC ACID, SODIUM BISULFITE, SODIUM HYDROXIDE
HospiraNDC 00409-1902-01 Sulfites
Show 5 ingredients

HYDROCHLORIC ACID, METHYLPARABEN, SODIUM HYDROXIDE, SODIUM METABISULFITE, WATER
International Medication SystemsNDC 76329-3399-05 Sulfites Benzyl alcohol
Show 4 ingredients

BENZYL ALCOHOL, HYDROCHLORIC ACID, SODIUM BISULFITE, SODIUM HYDROXIDE
Medical Purchasing Solutions, LLCNDC 71872-7113-01 Sulfites
Show 5 ingredients

HYDROCHLORIC ACID, METHYLPARABEN, SODIUM HYDROXIDE, SODIUM METABISULFITE, WATER
Medical Purchasing Solutions, LLC.NDC 71872-7353-01 Sulfites
Show 5 ingredients

HYDROCHLORIC ACID, METHYLPARABEN, SODIUM HYDROXIDE, SODIUM METABISULFITE, WATER
NexusNDC 14789-0901-10 Sulfites
Show 5 ingredients

HYDROCHLORIC ACID, METHYLPARABEN, SODIUM HYDROXIDE, SODIUM METABISULFITE, WATER
ProPharma DistributionNDC 84549-0399-05 Sulfites Benzyl alcohol
Show 4 ingredients

BENZYL ALCOHOL, HYDROCHLORIC ACID, SODIUM BISULFITE, SODIUM HYDROXIDE
RemedyrepackNDC 70518-4208-00 Sulfites Benzyl alcohol
Show 4 ingredients

BENZYL ALCOHOL, HYDROCHLORIC ACID, SODIUM BISULFITE, SODIUM HYDROXIDE
SagentNDC 25021-0322-10 Sulfites
Show 5 ingredients

Hydrochloric Acid, Methylparaben, Sodium Hydroxide, Sodium Metabisulfite, Water
Procainamide 500 mg/mL injection 4 companies Sulfites 4
CompanyListsInactive ingredients on the label
Caplin SterilesNDC 65145-0156-10 Sulfites
Show 5 ingredients

HYDROCHLORIC ACID, METHYLPARABEN, SODIUM HYDROXIDE, SODIUM METABISULFITE, WATER
GlandNDC 68083-0604-25 Sulfites
Show 5 ingredients

HYDROCHLORIC ACID, METHYLPARABEN, SODIUM HYDROXIDE, SODIUM METABISULFITE, WATER
NexusNDC 14789-0900-02 Sulfites
Show 5 ingredients

HYDROCHLORIC ACID, METHYLPARABEN, SODIUM HYDROXIDE, SODIUM METABISULFITE, WATER
SagentNDC 25021-0323-02 Sulfites
Show 5 ingredients

Hydrochloric Acid, Methylparaben, Sodium Hydroxide, Sodium Metabisulfite, Water

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.

Procainamide and sulfites

Sulfites: metabisulfite or bisulfite preservatives; a concern with sulfite sensitivity or asthma. Every checked Procainamide product (16) lists sulfites.

Show which Procainamide products list sulfites and which do not, by product and company

Lists sulfites

  • 100 mg/mL injection: Caplin Steriles, Gland, HF Acquisition Co LLC, DBA HealthFirst, HF Acquisition Co LLC, DBA HealthFirst, Hospira, International Medication Systems, Medical Purchasing Solutions, LLC, Medical Purchasing Solutions, LLC., Nexus, ProPharma Distribution, Remedyrepack, Sagent
  • 500 mg/mL injection: Caplin Steriles, Gland, Nexus, Sagent

Procainamide without benzyl alcohol

Benzyl alcohol: A preservative, mostly in injections and liquids; not for newborns. 4 of 16 checked products list benzyl alcohol; 12 do not.

Show which Procainamide products list benzyl alcohol and which do not, by product and company

Does not list benzyl alcohol

  • 100 mg/mL injection: Caplin Steriles, Gland, HF Acquisition Co LLC, DBA HealthFirst, Hospira, Medical Purchasing Solutions, LLC, Medical Purchasing Solutions, LLC., Nexus, Sagent
  • 500 mg/mL injection: Caplin Steriles, Gland, Nexus, Sagent

Lists benzyl alcohol

  • 100 mg/mL injection: HF Acquisition Co LLC, DBA HealthFirst, International Medication Systems, ProPharma Distribution, Remedyrepack

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 Procainamide product suits you →

Common questions about Procainamide inactive ingredients

Is Procainamide gluten-free?
This page cannot certify any Procainamide product gluten-free; it reports what each label declares. Of the 16 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 Procainamide contain lactose?
No checked Procainamide product lists lactose on its label. People with a milk allergy or a strong intolerance often prefer a version that does not list it.
Does Procainamide contain soy?
No checked Procainamide 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 Procainamide?
No checked Procainamide 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 Procainamide contain gelatin?
No checked Procainamide 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 and dose form. For injectable, ophthalmic and otic products the FDA generally requires the inactive ingredients to match the reference product as well, so the lists on this page differ less than they do for tablets and capsules; the differences that remain come from the exact product and container each company files.
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?
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 Procainamide 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 Procainamide guide