Calfspan Tab 8gm Sustained Release 8 g Tablet (Extended-Release) is a Health Canada–registered veterinary drug (DIN 00695637) held by Norden Laboratories Inc., containing Sulfamethazine. Health Canada lists its status as Cancelled Post Market (status date 10 Sep 1996). Nexara Health has matched 15 registrations of Sulfamethazine across 2 other regulated markets.
Health Canada registration
| DIN | 00695637 |
|---|---|
| Brand name | Calfspan Tab 8gm Sustained Release |
| Active ingredient | Sulfamethazine |
| Strength | 8 g |
| Dosage form | Tablet (Extended-Release) |
| Route | Oral |
| Company | Norden Laboratories Inc. |
| Status | Cancelled Post Market — 10 Sep 1996 |
| Class | Veterinary |
| ATC | |
| AHFS | |
| Regulator record | Health Canada DPD entry · Product monograph |
Sulfamethazine registered in other markets
15 registrations of the same molecule in 2 national registries outside Canada (first 14 shown, exact strength and form first). Each row is taken from the regulator's own published list; status is shown as the registry reports it.
| Country | Product | Marketing authorisation holder | Strength | Form | Status | Registry |
|---|---|---|---|---|---|---|
| Taiwan | "Sulphamezathine" Sulphadimidine Sodium Powde | Astrazeneca Uk Limited | （粉） | 已註銷 | TFDA | |
| Taiwan | Sulfadimidine Sodium | N.v. Chemische Industric "Katwijk" | （粉） | 已註銷 | TFDA | |
| Taiwan | Sulfadimidine Sodium | Marsing & Co. Ltd. | （粉） | 已註銷 | TFDA | |
| Taiwan | Sulfadimidine Sodium | N.v. Chemische Industric "Katwijk" | （粉） | 已註銷 | TFDA | |
| Taiwan | Sulfadimidine Sodium | Marsing & Co. Ltd. | （粉） | 已註銷 | TFDA | |
| Taiwan | Sulfadimidine Sodium (Sulphadimidine Sodium) | Istituto Chemioterapico Italiano S. P. A. | （粉） | 已註銷 | TFDA | |
| Taiwan | Sulfadimidine Sodium BP | Istituto Chemioterapico Italiano S. P. A. | （粉） | 已註銷 | TFDA | |
| Taiwan | Sulphadimidine Sodium | Grindsted Products | （粉） | 已註銷 | TFDA | |
| United States | Sulfamethazine | Hunan Xiangyikang Pharmaceutical Co., Ltd. | Powder | FDA NDC | ||
| United States | Sulfamethazine | Second Pharma Co., Ltd. | Powder | FDA NDC | ||
| United States | Sulfamethazine | Hunan Xiangyikang Pharmaceutical Co., Ltd | Powder | FDA NDC | ||
| United States | Sulfamethazine Sodium, Rx | Hunan Wugan Pharmaceutical Co., Ltd. | Powder | FDA NDC | ||
| United States | Sulfamethazine, OTC | Hunan Wugan Pharmaceutical Co., Ltd. | Powder | FDA NDC | ||
| United States | Sulfamethazine, Rx | Hunan Wugan Pharmaceutical Co., Ltd. | Powder | FDA NDC |
See every manufacturer of Sulfamethazine worldwide →
Sourcing through Nexara Health
Nexara Health is a Health Canada–licensed wholesaler (DEL #3-002896) in Winnipeg. This DIN is not currently marketed in Canada. The registrations above show which regulated markets hold an equivalent presentation that can be sourced for clinical comparator use or on a named-patient basis under Health Canada's Special Access Programme. Request a quote or read how named-patient and foreign-pack supply works in Canada.
Frequently asked questions
Is Calfspan Tab 8gm Sustained Release (DIN 00695637) marketed in Canada?
No. Health Canada lists DIN 00695637 as Cancelled Post Market as of 10 Sep 1996.
Who holds the Canadian licence for this product?
Norden Laboratories Inc. is the company of record in the Health Canada Drug Product Database.
Is Sulfamethazine registered outside Canada?
Yes — Nexara Health has matched 15 registrations in 2 other markets (see the table above).
Where does this data come from?
Health Canada Drug Product Database (DPD), DIN 00695637, status date 1996-09-10; national medicine registries: FDA NDC, TFDA. Nexara Health re-checks these sources weekly and shows the last verification date at the top of the page.
Source: Health Canada Drug Product Database (DPD), DIN 00695637, status date 1996-09-10; national medicine registries: FDA NDC, TFDA.
Health Canada Drug Product Database (DPD), DIN 00695637, status date 1996-09-10; national medicine registries: FDA NDC, TFDA. Last reviewed 2026-09-17. Nexara Health is a licensed wholesaler and supplies licensed entities only; consumer orders are routed to a partner pharmacy.