Last updated: April 25, 2026
Who Supplies DETROL (tolterodine) and How Is the Supply Chain Structured?
DETROL is the brand name for tolterodine, an oral antimuscarinic used for overactive bladder indications. “Suppliers” can mean (1) the marketing authorization holder/brand owner in a given market, (2) the API (active pharmaceutical ingredient) manufacturer(s), and (3) the finished-dose manufacturer(s) that produce tablets/capsules under license. Patent and regulatory filings also show contract manufacturing and packaging participants. Because “DETROL” is sold under multiple brand configurations across regions, the supplier set differs by country, dosage form, and product strength.
Which companies are typically in the DETROL value chain?
A DETROL supply chain in practice usually breaks into these roles:
| Supply-chain role |
What it does |
What to look for in filings/labels |
| Marketing authorization holder / brand owner |
Holds the product authorization and controls commercial supply |
Product label, national drug registry entry, EU/US approval records |
| API manufacturer |
Manufactures tolterodine API |
Drug master file references, DMF holder/manufacturer lines in regulatory dossiers |
| Finished-dose manufacturer |
Makes tablets/capsules (formulation, blending, compression/filling) |
Manufacturing site listed on label, product dossier manufacturing section |
| Packaging site |
Primary and secondary packaging |
“Packed by” or “Manufactured for” lines on label |
| Distribution / logistics |
Moves finished goods |
Distributor/wholesaler listings (varies by market) |
What are the DETROL product configurations that affect “suppliers”?
DETROL supply differs by dosage form and whether it is immediate-release or extended-release:
- DETROL® (tolterodine tartrate): immediate-release form in many markets (tablets).
- DETROL LA® (tolterodine extended release): extended-release form in many markets (capsules).
Different formulations usually use different manufacturing lines and sometimes different release specifications and excipient systems, which can change the finished-dose manufacturing site(s) even if the API is shared.
How do you identify DETROL suppliers from authoritative records?
For pharmaceutical products like DETROL, supplier attribution is best supported by three evidence classes:
-
Regulatory label statements
- “Manufactured for” (brand/market authorization holder)
- “Manufactured by” and site addresses
- “Packed by” or “Distributed by”
-
Regulatory dossier components (where available)
- API manufacturing site(s) listed in the manufacturing section
- Sterility is not relevant here, but solid dose manufacturing controls are
-
Regulatory database entries by country
- National registries often list the marketing authorization holder and manufacturing sites
Who are the expected top-tier players behind DETROL supply (by role)?
DETROL’s global footprint commonly involves the following supplier categories:
| Role |
Typical supplier type for tolterodine brands |
Why this matters for “suppliers” |
| Brand owner / MAH |
A branded overactive bladder portfolio company (often tied to the original brand strategy) |
Determines label text and who appears as “manufactured for” |
| API supply |
Specialized API plants for antimuscarinics |
API plants can be shared across branded and generic tolterodine products |
| Finished dose supply |
Contract manufacturers for solid oral dosage |
Multiple sites may exist to serve different markets or packaging requirements |
DETROL supplier lists: what must be specified for a correct answer
To produce a complete and accurate supplier list, the following must be fixed:
- Market (country/region)
- Product variant: DETROL vs DETROL LA
- Strength and dosage form
- Exact label text version (labels change over time)
Without these anchors, any “supplier list” would mix different authorizations and different manufacturing sites, which is not actionable for R&D diligence or investment work.
Key takeaways
- “Suppliers for DETROL” is not a single static set; it changes by market and product variant (immediate-release vs extended-release).
- The most defensible supplier attribution comes from regulatory label / national registry manufacturing-site lines and dossier manufacturing sections.
- A correct supplier mapping must specify country/region and DETROL vs DETROL LA to avoid mixing unrelated authorizations.
FAQs
1) Does DETROL have the same supplier list as DETROL LA?
No. Extended-release and immediate-release often use different finished-dose manufacturing sites.
2) Are the API supplier and finished-dose manufacturer usually the same company?
Often not. Tolterodine API is frequently sourced from specialized API plants, while tablets/capsules may be produced by different finished-dose manufacturers.
3) What supplier evidence is strongest for DETROL?
Label-based manufacturing and packaging lines and entries in the relevant national drug registry tied to the exact product variant and strength.
4) Do suppliers change over time for DETROL?
Yes. Sites and packaging arrangements can change due to supply chain shifts, quality/compliance events, or contract renewals.
5) Can I identify suppliers from patents alone?
Patents can indicate process inventors or assignees, but they rarely map cleanly to current commercial manufacturing sites for DETROL.
References
[1] FDA. Orange Book: Approved Drug Products with Therapeutic Equivalence Evaluations (tolterodine products and brand entries). FDA.
[2] EMA. European public assessment reports (EPAR) and product information for tolterodine brand products (where applicable). European Medicines Agency.
[3] National drug registries (country-specific) for manufacturing site and marketing authorization holder listings for DETROL/DETROL LA.
