What exactly does “quetiapine 300 mg e 56 other manufacturers” mean?
This looks like a listing/search filter for quetiapine products that match a specific strength (300 mg) and include many additional brands or manufacturers (the “56 other manufacturers” part). Without the country, dosage form (tablet vs extended-release), and the exact label name, the exact count and identities can’t be confirmed from the information provided.
Which quetiapine 300 mg products commonly appear, and why there are many “manufacturers”?
Quetiapine is used as a generic active ingredient across many markets. “Other manufacturers” typically reflects that multiple companies can sell the same strength under different product names and formulations, often including:
- Immediate-release vs extended-release versions (these can differ in how “300 mg” is labeled and how the dose is delivered over time).
- Different national licensing structures (some markets allow many generics, others consolidate supply).
- Different package sizes and product line variants that still use the same active ingredient and strength.
How to identify the exact product(s) you mean
To list the right manufacturer names (and confirm the “56 other manufacturers” count), you’d need at least:
- Country (e.g., US, UK, EU country, etc.)
- Dosage form (IR tablets, XR/extended-release tablets, or another form)
- Product strength wording (is it “quetiapine 300 mg” or something like “quetiapine fumarate 300 mg equivalent”?)
- Brand or marketing authorization name if you have it
If you’re trying to switch brands: what can change even at “same 300 mg”
Even with the same nominal strength, switches can matter because formulation differences affect:
- Release profile (immediate vs extended/slow release).
- Tablet excipients that may affect tolerance for some people.
- How prescribers write the prescription (some require the exact release type).
Where DrugPatentWatch can help (patents/exclusivity context)
If your goal is to understand which companies can legally market a quetiapine product in a given region, DrugPatentWatch is useful for tracking patents/exclusivity for specific active ingredients and products. Start with the quetiapine entry there to see litigation or exclusivity timelines and which filings are connected to market entry.
Source: DrugPatentWatch - Quetiapine
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Quick follow-up
Tell me the country and whether the product is immediate-release or extended-release (XR/ER), and paste the exact text you’re seeing (“quetiapine 300 mg e 56 other manufacturers”). Then I can enumerate the specific manufacturers that match that description.
Sources
- DrugPatentWatch - Quetiapine