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Disopyramide 100 MG Oral Capsule — RxCUI 309958

Name: Disopyramide 100 MG Oral Capsule (RxCUI 309958)
Creator: Brian Staiger, PharmD

RxNorm drug concept · Semantic clinical drug

RxCUI 309958 Semantic clinical drug · SCD ● Current RxNorm concept 11 FDA products 11 package NDCs Snapshot Jul 14, 2026

This page is curated, coded, and maintained by Dr. Brian Staiger, PharmD

Compiled from public NLM RxNorm and FDA (openFDA NDC directory) data sources. Editorial policy

What you’re looking at: the standardized identity of one medicine, as the U.S. drug-data system sees it. Below — every FDA-listed product, package code, price benchmark, and billing code that maps to it.

🗂️ Key Facts

RxCUI309958

Official nameDisopyramide 100 MG Oral Capsule

Concept typeSemantic clinical drug (SCD)

RxNorm statusCurrent RxNorm concept

Also known asdisopyramide 100 MG (as disopyramide phosphate) Oral Capsule; disopyramide phosphate 100 MG Oral Capsule

FDA products mapped11

Package NDCs mapped11

Reported Medicaid activity (SDUD)467 prescriptions · 6 state & territory Medicaid programs · latest period Q4 2025

RxNorm release07/06/2026

Snapshot dataJul 14, 2026

📖 Skip the Codes — Read It in Plain English.

Our pharmacist-built guide to Disopyramide: what it is, how it’s used, side effects, and interactions.

📗 Our plain-language guide HelloPharmacist

Disopyramide is used to treat life-threatening ventricular arrhythmias — dangerous heart rhythms that originate in the lower chambers of the heart, like sustained ventricular tachy...
The most common side effects come from the drug's anticholinergic activity — think dry mouth, constipation, blurred vision, and trouble starting urination. These can be bothersome...
What side effects should I expect, and which ones mean I should call my doctor?
Yes — this is really important. Two common antibiotics, clarithromycin and erythromycin, have caused life-threatening reactions when combined with disopyramide, so they need to be...

📖 Read our full Disopyramide guide →

🕸️ Concept Web — How Disopyramide 100 MG Oral Capsule Connects

One RxCUI never lives alone. Follow the path from the raw ingredient down to the exact strength-and-form concepts FDA products carry — every stop is a real RxNorm concept with its own identifier. Hover or focus any chip for what it means.

This page's concept Disopyramide 100 MG Oral Capsule RxCUI 309958 Semantic clinical drug · SCD

Every web starts here: one RxCUI, one fixed meaning in the RxNorm vocabulary.

Ingredients 1

The active substance itself — no strength, form, or brand attached yet.
- Disopyramide 3541 IN
Brand names 1

The same medicine's trade names. A brand name alone says nothing about strength or form.
- Norpace 203631 BN
Dose forms 9

The ingredient poured into a form — tablet, solution, cream — still without one fixed strength.
- Disopyramide Oral Capsule 371935 SCDF
- Disopyramide Oral Product 1159600 SCDG
- Disopyramide Pill 1159601 SCDG
- Disopyramide Oral Capsule [Norpace] 366672 SBDF
- Norpace Oral Product 1185717 SBDG
- Norpace Pill 1185718 SBDG
- Oral Capsule 316965 DF
- Oral Product 1151131 DFG
- +1 more in this family
Clinical & branded drugs 3

Ingredient + strength + dose form. These are the concepts real FDA products actually carry.
- Disopyramide 100 MG 328829 SCDC
- Disopyramide 100 MG Oral Capsule [Norpace] 209066 SBD
- Disopyramide 100 MG [Norpace] 569697 SBDC

Showing up to 8 concepts per family — 13 of 14 stored related concepts drawn.

These are official RxNorm vocabulary relationships — how concepts name and organize the same medicine. They do not establish therapeutic equivalence or substitutability: two concepts appearing in one web is never a statement that products can be swapped.

🔀 Generic ⇄ Brand Crosswalk

The same medicine has an unbranded (generic) identity and one or more brand-name identities — each with its own RxCUI. This is a naming relationship in RxNorm, not a statement that any two products are substitutable.

Generic (Clinical) Concepts

Disopyramide 100 MG SCDC · 328829
Disopyramide Oral Capsule SCDF · 371935
Disopyramide Oral Product SCDG · 1159600
Disopyramide Pill SCDG · 1159601

Brand-Name Concepts

Disopyramide 100 MG Oral Capsule [Norpace] SBD · 209066
Disopyramide 100 MG [Norpace] SBDC · 569697
Disopyramide Oral Capsule [Norpace] SBDF · 366672
Norpace Oral Product SBDG · 1185717
Norpace Pill SBDG · 1185718
Norpace BN · 203631

📦 FDA Products & Package NDCs

11 products · 11 package NDCs

11 package NDCs map to RxCUI 309958 in the current snapshot — up to 50 per page. Each linked NDC opens its full package page.

Package NDC	Package	Brand / generic name	Labeler	Marketing start
00025-2732-31	100 CAPSULE, EXTENDED RELEASE in 1 BOTTLE (0025-2732-31)	Norpace CR	Pfizer Laboratories Div Pfizer Inc	1982-07-20
00025-2742-31	100 CAPSULE, EXTENDED RELEASE in 1 BOTTLE (0025-2742-31)	Norpace CR	Pfizer Laboratories Div Pfizer Inc	1982-07-20
00025-2752-31	100 CAPSULE, GELATIN COATED in 1 BOTTLE (0025-2752-31)	Norpace	Pfizer Laboratories Div Pfizer Inc	1977-09-01
00025-2762-31	100 CAPSULE, GELATIN COATED in 1 BOTTLE (0025-2762-31)	Norpace	Pfizer Laboratories Div Pfizer Inc	1977-09-01
00093-3127-01	100 CAPSULE in 1 BOTTLE (0093-3127-01)	Disopyramide Phosphate	Teva Pharmaceuticals USA, Inc.	1990-09-30
00093-3129-01	100 CAPSULE in 1 BOTTLE (0093-3129-01)	Disopyramide Phosphate	Teva Pharmaceuticals USA, Inc.	1990-09-30
51862-0095-01	100 CAPSULE in 1 BOTTLE (51862-095-01)	DISOPYRAMIDE PHOSPHATE	Mayne Pharma Commercial LLC	2022-04-01
59762-0386-01	100 CAPSULE, GELATIN COATED in 1 BOTTLE (59762-0386-1)	Disopyramide Phosphate	Mylan Pharmaceuticals Inc.	2019-04-23
59762-0400-01	100 CAPSULE, GELATIN COATED in 1 BOTTLE (59762-0400-1)	Disopyramide Phosphate	Mylan Pharmaceuticals Inc.	2019-04-23
75907-0026-01	100 CAPSULE in 1 BOTTLE (75907-026-01)	DISOPYRAMIDE PHOSPHATE	Dr. Reddy's Labratories Inc.	2024-03-15
75907-0027-01	100 CAPSULE in 1 BOTTLE (75907-027-01)	DISOPYRAMIDE PHOSPHATE	Dr. Reddy's Labratories Inc.	2024-03-15

Observed labelers: Pfizer Laboratories Div Pfizer Inc (4) · Dr. Reddy's Labratories Inc. (2) · Mylan Pharmaceuticals Inc. (2) · Teva Pharmaceuticals USA, Inc. (2) · Mayne Pharma Commercial LLC (1) — this is the FDA-listed mapping footprint, not sales, inventory, availability, or market share.

🗃️ Sources & Limits

Atlas generation902fddb9-e9c1-4004-bf4c-dba4d51037c7

openFDA export observedJul 14, 2026

RxNorm release07/06/2026

Methodology2026-07-full-catalog-v1

A shared RxCUI does not prove interchangeability. Products mapped to the same concept are not thereby equivalent or substitutable — equivalence is a separate, product-level determination.
Listing here does not establish approval or coverage. Appearing in this snapshot is a data observation, not an FDA approval status or a payer coverage decision.
Missing data never means zero. A silent dataset (no price, no billing code, no utilization) means no observation — not that the real-world value is zero.
Counts describe the mapping footprint. Product, package, and labeler counts are the FDA-listed mapping footprint in this snapshot — not sales, inventory, availability, or market share.

This product uses publicly available data from the U.S. National Library of Medicine (NLM), National Institutes of Health, Department of Health and Human Services; NLM is not responsible for the product and does not endorse or recommend this or any other product.

Machine-readable JSON

Reference information about drug-concept identifiers and public regulatory data — not medical advice. Talk to your pharmacist or prescriber about your own medication.