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Last Updated: December 16, 2025

List of Excipients in API tofersen

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Excipients in NDA-approved (novel) drugs containing tofersen

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Company	Tradename	Ingredient	NDC	Excipient	Potential Generic Entry
Biogen Inc	QALSODY	tofersen	64406-109	CALCIUM CHLORIDE	2030-04-25
Biogen Inc	QALSODY	tofersen	64406-109	MAGNESIUM CHLORIDE	2030-04-25
Biogen Inc	QALSODY	tofersen	64406-109	POTASSIUM CHLORIDE	2030-04-25
>Company	>Tradename	>Ingredient	>NDC	>Excipient	>Potential Generic Entry

Detailed excipient profiles for tofersen

Excipient focus: CALCIUM CHLORIDE

tofersen drug variants containing CALCIUM CHLORIDE

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Company	Ingredient	NDC
Biogen Inc	tofersen	64406-109
>Company	>Ingredient	>NDC

tofersen drug variants not containing CALCIUM CHLORIDE

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Company	Ingredient	NDC
>Company	>Ingredient	>NDC

Excipient focus: MAGNESIUM CHLORIDE

tofersen drug variants containing MAGNESIUM CHLORIDE

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Company	Ingredient	NDC
Biogen Inc	tofersen	64406-109
>Company	>Ingredient	>NDC

tofersen drug variants not containing MAGNESIUM CHLORIDE

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Company	Ingredient	NDC
>Company	>Ingredient	>NDC

Excipient focus: POTASSIUM CHLORIDE

tofersen drug variants containing POTASSIUM CHLORIDE

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Company	Ingredient	NDC
Biogen Inc	tofersen	64406-109
>Company	>Ingredient	>NDC

tofersen drug variants not containing POTASSIUM CHLORIDE

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Company	Ingredient	NDC
>Company	>Ingredient	>NDC

Excipient focus: SODIUM CHLORIDE

tofersen drug variants containing SODIUM CHLORIDE

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Company	Ingredient	NDC
Biogen Inc	tofersen	64406-109
>Company	>Ingredient	>NDC

tofersen drug variants not containing SODIUM CHLORIDE

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Company	Ingredient	NDC
>Company	>Ingredient	>NDC

Excipient focus: SODIUM PHOSPHATE, DIBASIC

tofersen drug variants containing SODIUM PHOSPHATE, DIBASIC

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Company	Ingredient	NDC
Biogen Inc	tofersen	64406-109
>Company	>Ingredient	>NDC

tofersen drug variants not containing SODIUM PHOSPHATE, DIBASIC

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Company	Ingredient	NDC
>Company	>Ingredient	>NDC

Excipient focus: SODIUM PHOSPHATE, MONOBASIC

tofersen drug variants containing SODIUM PHOSPHATE, MONOBASIC

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Company	Ingredient	NDC
Biogen Inc	tofersen	64406-109
>Company	>Ingredient	>NDC

tofersen drug variants not containing SODIUM PHOSPHATE, MONOBASIC

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Company	Ingredient	NDC
>Company	>Ingredient	>NDC

Excipient focus: WATER

tofersen drug variants containing WATER

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Company	Ingredient	NDC
Biogen Inc	tofersen	64406-109
>Company	>Ingredient	>NDC

tofersen drug variants not containing WATER

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Company	Ingredient	NDC
>Company	>Ingredient	>NDC

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