Dorzolamide HCl (Dorzolamide HCl) 20 mg

SOLUTION/ DROPSOPHTHALMICBausch & Lomb IncorporatedNDC: 24208-485Updated: Mar 2026

Active Ingredient

⚠️ 1 ingredient flagged as common allergen

Mannitol

⚠️ Yes — Mannitol

Filler/Sweetener

Benzalkonium Chloride

Preservative/Antiseptic

Hamamelis Virginiana Top Water

Skin Conditioner

Hydroxyethyl Cellulose (2000 Mpa.s At 1%)

Sodium Hydroxide

pH Adjuster

Trisodium Citrate Dihydrate

Buffer

Ingredient	Purpose	Common Allergen?	Description
Mannitol	Filler/Sweetener	⚠️ Yes — Mannitol	A sugar alcohol used as a sweetener and bulking agent. Can cause osmotic diarrhea in sensitive individuals.
Benzalkonium Chloride	Preservative/Antiseptic	No	A quaternary ammonium preservative used in ophthalmic drops, nasal sprays, and topical formulations. Can cause eye irritation with prolonged use in eye drops.
Hamamelis Virginiana Top Water	Skin Conditioner	No	Witch hazel distillate, a plant-derived astringent used in topical formulations to soothe and tone the skin.
Hydroxyethyl Cellulose (2000 Mpa.s At 1%)	—	No	—
Sodium Hydroxide	pH Adjuster	No	A strong alkali used to adjust the pH of pharmaceutical solutions. Present only in trace amounts in the final product.
Trisodium Citrate Dihydrate	Buffer	No	Sodium citrate. Used as a buffering agent to maintain pH stability in liquid and injectable formulations.

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