Ondansetron 4 mg

TABLET, ORALLY DISINTEGRATINGORALAidarex Pharmaceuticals LLCNDC: 33261-747Updated: Mar 2026

Active Ingredient

⚠️ 3 ingredients flagged as common allergens

Aspartame

⚠️ Yes — Aspartame

Sweetener

Crospovidone

⚠️ Yes — Povidone

Disintegrant

Mannitol

⚠️ Yes — Mannitol

Filler/Sweetener

Magnesium Stearate

Lubricant

Silicon Dioxide

Glidant

Sodium Stearyl Fumarate

Lubricant

Ingredient	Purpose	Common Allergen?	Description
Aspartame	Sweetener	⚠️ Yes — Aspartame	An artificial sweetener. Dangerous for individuals with phenylketonuria (PKU). Rare general sensitivities reported.
Crospovidone	Disintegrant	⚠️ Yes — Povidone	A cross-linked form of povidone used as a superdisintegrant. Same polymer allergy concern as povidone.
Mannitol	Filler/Sweetener	⚠️ Yes — Mannitol	A sugar alcohol used as a sweetener and bulking agent. Can cause osmotic diarrhea in sensitive individuals.
Magnesium Stearate	Lubricant	No	A lubricant that prevents ingredients from sticking to manufacturing equipment.
Silicon Dioxide	Glidant	No	A mineral (silica) used to improve powder flow during tablet manufacturing. Also called colloidal silicon dioxide.
Sodium Stearyl Fumarate	Lubricant	No	A tablet lubricant used as an alternative to magnesium stearate. Vegetable-derived.

This medication contains ingredients flagged in the following groups. Patients with these sensitivities should consult their prescriber.

1 ingredient may contain mammalian-derived components:

Magnesium Stearate(Possible — Stearates can be plant- or animal-derived (verify source).)