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Dorzolamide Hydrochloride and Timolol Maleate

Prescription ANDA TE AT1 Official labelling
Informational index, not medical advice. Content is reproduced from public FDA and NLM data. Always confirm against the manufacturer's current prescribing information. Report adverse events to FDA MedWatch.

Overview

Brand name
Dorzolamide Hydrochloride and Timolol Maleate
Generic name
Dorzolamide Hydrochloride and Timolol Maleate
Dosage form
Solution/ Drops
Route
Ophthalmic
Marketing category
ANDA · ANDA
Labeler
Bryant Ranch Prepack
Product type
Human Prescription Drug
DEA schedule
Not scheduled
Active ingredients
2
NDC product codes
9
Packages
10
Data completeness
82% of corroborating sources present

Active ingredients

Source: NDC Directory
Active ingredients and strengths as listed in the NDC Directory.
Ingredient Strength RxCUI Monograph
Dorzolamide Hydrochloride 20 mg/mL 1923432 View
Timolol Maleate 5 mg/mL 1923432 View

Forms, strengths and routes

Source: NDC Directory
Dosage form
Solution/ Drops
Route of administration
Ophthalmic
Presentations
19

Pharmacologic classes are listed in the class section below.

Pharmacologic class

Source: NDC Directory
Established pharmacologic classes (EPC), mechanisms of action (MoA), chemical structures (CS) and physiologic effects (PE).
Class Type Browse
Adrenergic beta-Antagonists [MoA] MoA All 72 members
Carbonic Anhydrase Inhibitor [EPC] EPC All 13 members
Carbonic Anhydrase Inhibitors [MoA] MoA All 15 members
beta-Adrenergic Blocker [EPC] EPC All 72 members

Regulatory status

Source: Drugs@FDANDC Directory
Application number
090037
Application type
ANDA · Abbreviated New Drug Application
Approval date
July 14, 2009
Sponsor
BAUSCH AND LOMB
Products on application
1
Submissions recorded
4
Products approved under application 090037.
Product Trade name Form Strength Ingredient Status TE Flags
090037-001 DORZOLAMIDE HYDROCHLORIDE AND TIMOLOL MALEATE SOLUTION/DROPS DORZOLAMIDE HYDROCHLORIDE; TIMOLOL MALEATE Prescription AT1

Therapeutic equivalence

Source: Orange Book
TE code
AT1
Reference Listed Drug
No
Reference Standard
No

What this rating means: Therapeutically equivalent — bioequivalence demonstrated (topical dermatological products)

Codes beginning with “A” indicate products the FDA considers therapeutically equivalent. Codes beginning with “B” indicate bioequivalence has not been established. See methodology.

Approval history

Source: Drugs@FDA
Most recent submissions on application 090037.
Type No. Action Status Date Review
Supplement 16 Labeling Approved August 14, 2023 Standard
Supplement 7 Labeling Approved August 14, 2023 Standard
Supplement 6 Labeling Approved February 20, 2013 Standard
Original application 1 Approved July 14, 2009 —

Prescribing information

Source: openFDA Drug Labeling

Reproduced verbatim from the Structured Product Labeling submitted to the FDA (effective 20260430). This is the manufacturer's labelling text, not a summary and not advice.

HUMAN PRESCRIPTION DRUG · 20260430 HUMAN PRESCRIPTION DRUG · 20250910 HUMAN PRESCRIPTION DRUG · 20241101 HUMAN PRESCRIPTION DRUG · 20240820

Indications and Usage

openFDA Drug Labeling

1 INDICATIONS AND USAGE Dorzolamide hydrochloride and timolol maleate ophthalmic solution preservative free is indicated for the reduction of elevated intraocular pressure (IOP) in patients with open-angle glaucoma or ocular hypertension who are insufficiently responsive to beta-blockers (failed to achieve target IOP determined after multiple measurements over time). The IOP-lowering of dorzolamide hydrochloride and timolol maleate ophthalmic solution administered twice a day was slightly less than that seen with the concomitant administration of 0.5% timolol administered twice a day and 2% dorzolamide administered three times a day [see Clinical Studies (14.1) ]. Dorzolamide hydrochloride and timolol maleate ophthalmic solution preservative free is a combination of dorzolamide hydrochloride, a carbonic anhydrase inhibitor, and timolol maleate, a beta-adrenergic receptor inhibitor, indicated for the reduction of elevated intraocular pressure (IOP) in patients with open-angle glaucoma or ocular hypertension who are insufficiently responsive to beta-blockers. The IOP-lowering of dorzolamide hydrochloride and timolol maleate ophthalmic solution twice daily was slightly less than that seen with the concomitant administration of 0.5% timolol twice daily, and 2% dorzolamide three times daily. ( 1 )

Dosage and Administration

openFDA Drug Labeling

2 DOSAGE AND ADMINISTRATION The dose is one drop of dorzolamide hydrochloride and timolol maleate ophthalmic solution (preservative free) in the affected eye(s) two times daily. If more than one topical ophthalmic drug is being used, the drugs should be administered at least five minutes apart [see Drug Interactions (7.3) ]. The solution from one individual unit is to be used immediately after opening for administration to one or both eyes. Since sterility cannot be maintained after the individual unit is opened, the remaining contents should be discarded immediately after administration. The dose is one drop of dorzolamide hydrochloride and timolol maleate ophthalmic solution (preservative free) in the affected eye(s) two times daily. ( 2 )

Dosage Forms and Strengths

openFDA Drug Labeling

3 DOSAGE FORMS AND STRENGTHS Dorzolamide hydrochloride and timolol maleate ophthalmic solution, USP containing dorzolamide 20 mg/mL (2%) equivalent to 22.26 mg/mL of dorzolamide hydrochloride and timolol 5 mg/mL (0.5%) equivalent to 6.83 mg/mL of timolol maleate. Ophthalmic solution containing dorzolamide 20 mg/mL (2%) and timolol 5 mg/mL (0.5%). ( 3 )

Contraindications

openFDA Drug Labeling

4 CONTRAINDICATIONS Dorzolamide hydrochloride and timolol maleate ophthalmic solution (preservative free) is contraindicated in patients with: Bronchial asthma or a history of bronchial asthma, severe chronic obstructive pulmonary disease. ( 4.1 ) Sinus bradycardia, second or third degree atrioventricular block, overt cardiac failure, cardiogenic shock. ( 4.2 ) Hypersensitivity to any component of this product. ( 4.3 , 5.3 ) 4.1 Asthma, COPD Dorzolamide hydrochloride and timolol maleate ophthalmic solution (preservative free) is contraindicated in patients with bronchial asthma, a history of bronchial asthma, or severe chronic obstructive pulmonary disease [see Warnings and Precautions (5.1) ]. 4.2 Sinus Bradycardia, AV Block, Cardiac Failure, Cardiogenic Shock Dorzolamide hydrochloride and timolol maleate ophthalmic solution (preservative free) is contraindicated in patients with sinus bradycardia, second or third degree atrioventricular block, overt cardiac failure, and cardiogenic shock [see Warnings and Precautions (5.2) ]. 4.3 Hypersensitivity Dorzolamide hydrochloride and timolol maleate ophthalmic solution (preservative free) is contraindicated in patients who are hypersensitive to any component of this product [see Warnings and Precautions (5.3) ] .

Warnings and Cautions

openFDA Drug Labeling

5 WARNINGS AND PRECAUTIONS • Potentiation of Respiratory Reactions Including Asthma ( 5.1 ) • Cardiac Failure ( 5.2 ) • Sulfonamide Hypersensitivity ( 5.3 ) • Obstructive Pulmonary Disease ( 5.4 ) • Increased Reactivity to Allergens ( 5.5 ) • Potentiation of Muscle Weakness ( 5.6 ) • Masking of Hypoglycemic Symptoms in Patients with Diabetes Mellitus ( 5.7 ) • Masking of Thyrotoxicosis ( 5.8 ) • Renal and Hepatic Impairment ( 5.9 ) • Impairment of Beta-Adrenergically Mediated Reflexes During Surgery ( 5.10 ) 5.1 Potentiation of Respiratory Reactions Including Asthma Dorzolamide hydrochloride and timolol maleate ophthalmic solution contains timolol maleate, a beta-adrenergic blocking agent; and although administered topically, is absorbed systemically. Therefore, the same types of adverse reactions that are attributable to systemic administration of beta-adrenergic blocking agents may occur with topical administration. For example, severe respiratory reactions, including death due to bronchospasm in patients with asthma, and rarely death in association with cardiac failure, have been reported following systemic or ophthalmic administration of timolol maleate [see Contraindications ( 4.1 )]. 5.2 Cardiac Failure Sympathetic stimulation may be essential for support of the circulation in individuals with diminished myocardial contractility, and its inhibition by beta-adrenergic receptor blockade may precipitate more severe failure. In patients without a history of cardiac failure continued depression of the myocardium with beta-blocking agents over a period of time can, in some cases, lead to cardiac failure. At the first sign or symptom of cardiac failure, dorzolamide hydrochloride and timolol maleate ophthalmic solution should be discontinued [see Contraindications ( 4.2 )]. 5.3 Sulfonamide Hypersensitivity Dorzolamide hydrochloride and timolol maleate ophthalmic solution contains dorzolamide, a sulfonamide; and although administered topically, it is absorbed systemically. Therefore, the same types of adverse reactions that are attributable to sulfonamides may occur with topical administration of dorzolamide hydrochloride and timolol maleate ophthalmic solution. Fatalities have occurred, although rarely, due to severe reactions to sulfonamides including Stevens-Johnson syndrome, toxic epidermal necrolysis, fulminant hepatic necrosis, agranulocytosis, aplastic anemia, and other blood dyscrasias. Sensitization may recur when a sulfonamide is readministered irrespective of the route of administration. If signs of serious reactions or hypersensitivity occur, discontinue the use of this preparation [see Contraindications ( 4.3 )]. 5.4 Obstructive Pulmonary Disease Patients with chronic obstructive pulmonary disease (e.g., chronic bronchitis, emphysema) of mild or moderate severity, bronchospastic disease, or a history of bronchospastic disease (other than bronchial asthma or a history of bronchial asthma, in which dorzolamide hydrochloride and timolol maleate ophthalmic solution is contraindicated) should, in general, not receive beta-blocking agents, including dorzolamide hydrochloride and timolol maleate ophthalmic solution [see Contraindications ( 4.1 )]. 5.5 Increased Reactivity to Allergens While taking beta-blockers, patients with a history of atopy or a history of severe anaphylactic reactions to a variety of allergens may be more reactive to repeated accidental, diagnostic, or therapeutic challenge with such allergens. Such patients may be unresponsive to the usual doses of epinephrine used to treat anaphylactic reactions. 5.6 Potentiation of Muscle Weakness Beta-adrenergic blockade has been reported to potentiate muscle weakness consistent with certain myasthenic symptoms (e.g., diplopia, ptosis, and generalized weakness). Timolol has been reported rarely to increase muscle weakness in some patients with myasthenia gravis or myasthenic symptoms. 5.7 Masking of Hypoglycemic Symptoms in Patients with Diabetes Mellitus Beta-adre …

Adverse Reactions

openFDA Drug Labeling

6 ADVERSE REACTIONS The most frequently reported adverse reactions were taste perversion (bitter, sour, or unusual taste) or ocular burning and/or stinging in up to 30% of patients. Conjunctival hyperemia, blurred vision, superficial punctate keratitis or eye itching were reported between 5-15% of patients. ( 6 ) To report SUSPECTED ADVERSE REACTIONS, contact Ingenus Pharmaceuticals, LLC at 1-877-748-1970 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch . 6.1 Clinical Studies Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. Dorzolamide Hydrochloride and Timolol Maleate Ophthalmic Solution and Dorzolamide Hydrochloride and Timolol Maleate Ophthalmic Solution ( Preservative Free) Dorzolamide hydrochloride and timolol maleate ophthalmic solution and dorzolamide hydrochloride and timolol maleate ophthalmic solution (preservative free) were evaluated in patients with elevated intraocular pressure treated for open-angle glaucoma or ocular hypertension for up to 15 months. Approximately 5% of all patients discontinued therapy because of adverse reactions. The most frequently reported adverse reactions occurring in up to 30% of patients were taste perversion (bitter, sour, or unusual taste) or ocular burning and/or stinging. The following adverse reactions were reported in 5-15% of patients: conjunctival hyperemia, blurred vision, superficial punctate keratitis or eye itching. The following adverse reactions were reported in 1-5% of patients: abdominal pain, back pain, blepharitis, bronchitis, cloudy vision, conjunctival discharge, conjunctival edema, conjunctival follicles, conjunctival injection, conjunctivitis, corneal erosion, corneal staining, cortical lens opacity, cough, dizziness, dryness of eyes, dyspepsia, eye debris, eye discharge, eye pain, eye tearing, eyelid edema, eyelid erythema, eyelid exudate/scales, eyelid pain or discomfort, foreign body sensation, glaucomatous cupping, headache, hypertension, influenza, lens nucleus coloration, lens opacity, nausea, nuclear lens opacity, pharyngitis, post-subcapsular cataract, sinusitis, upper respiratory infection, urinary tract infection, visual field defect, vitreous detachment. Other adverse reactions that have been reported with the individual components are listed below: Dorzolamide 2% Angioedema, asthenia/fatigue, bronchospasm, contact dermatitis, epistaxis, eyelid crusting, ocular discomfort, photophobia, signs and symptoms of ocular allergic reaction, transient myopia. Timolol (ocular administration) Body as a Whole : Asthenia/fatigue; Cardiovascular : Arrhythmia, syncope, cerebral ischemia, worsening of angina pectoris, palpitation, cardiac arrest, pulmonary edema, edema, claudication, Raynaud's phenomenon, and cold hands and feet ; Digestive : Anorexia; Immunologic: Systemic lupus erythematosus; Nervous System/Psychiatric : Increase in signs and symptoms of myasthenia gravis, somnolence, insomnia, nightmares, behavioral changes and psychic disturbances including confusion, hallucinations, anxiety, disorientation, nervousness, and memory loss; Skin : Alopecia, psoriasiform rash or exacerbation of psoriasis; Hypersensitivity : Signs and symptoms of systemic allergic reactions, including anaphylaxis, angioedema, urticaria, and localized and generalized rash; Respiratory : Bronchospasm (predominantly in patients with pre-existing bronchospastic disease); Endocrine : Masked symptoms of hypoglycemia in diabetic patients; Special Senses : Ptosis, decreased corneal sensitivity, cystoid macular edema, visual disturbances including refractive changes and diplopia, pseudopemphigoid, and tinnitus; Urogenital : Retroperitoneal fibrosis, decreased libido, impotence, and Peyronie's disease. 6.2 Post-Marketing Experience The following adverse reactions have been i …

Drug Interactions

openFDA Drug Labeling

7 DRUG INTERACTIONS Potential additive effect of oral carbonic anhydrase inhibitor with dorzolamide hydrochloride and timolol maleate ophthalmic solution (preservative free). ( 7.1 ) Potential acid-base and electrolyte disturbances. ( 7.2 ) Concomitant use with systemic beta-blockers may potentiate systemic beta-blockade. ( 7.3 ) Oral or intravenous calcium antagonists may cause atrioventricular conduction disturbances, left ventricular failure, and hypotension. ( 7.4 ) Catecholamine-depleting drugs may have additive effects and produce hypotension and/or marked bradycardia. ( 7.5 ) Digitalis and calcium antagonists may have additive effects in prolonging atrioventricular conduction time. ( 7.6 ) CYP2D6 inhibitors may potentiate systemic beta-blockade. ( 7.7 ) 7.1 Oral Carbonic Anhydrase Inhibitors There is a potential for an additive effect on the known systemic effects of carbonic anhydrase inhibition in patients receiving an oral carbonic anhydrase inhibitor and dorzolamide hydrochloride and timolol maleate ophthalmic solution (preservative free). The concomitant administration of dorzolamide hydrochloride and timolol maleate ophthalmic solution (preservative free) and oral carbonic anhydrase inhibitors is not recommended. 7.2 High-Dose Salicylate Therapy Although acid-base and electrolyte disturbances were not reported in the clinical trials with dorzolamide hydrochloride ophthalmic solution, these disturbances have been reported with oral carbonic anhydrase inhibitors and have, in some instances, resulted in drug interactions (e.g., toxicity associated with high-dose salicylate therapy). Therefore, the potential for such drug interactions should be considered in patients receiving dorzolamide hydrochloride and timolol maleate ophthalmic solution (preservative free). 7.3 Beta-Adrenergic Blocking Agents Patients who are receiving a beta-adrenergic blocking agent orally and dorzolamide hydrochloride and timolol maleate ophthalmic solution (preservative free) should be observed for potential additive effects of beta-blockade, both systemic and on intraocular pressure. The concomitant use of two topical beta-adrenergic blocking agents is not recommended. 7.4 Calcium Antagonists Caution should be used in the coadministration of beta-adrenergic blocking agents, such as dorzolamide hydrochloride and timolol maleate ophthalmic solution (preservative free), and oral or intravenous calcium antagonists because of possible atrioventricular conduction disturbances, left ventricular failure, and hypotension. In patients with impaired cardiac function, coadministration should be avoided. 7.5 Catecholamine-Depleting Drugs Close observation of the patient is recommended when a beta-blocker is administered to patients receiving catecholamine-depleting drugs such as reserpine, because of possible additive effects and the production of hypotension and/or marked bradycardia, which may result in vertigo, syncope, or postural hypotension. 7.6 Digitalis and Calcium Antagonists The concomitant use of beta-adrenergic blocking agents with digitalis and calcium antagonists may have additive effects in prolonging atrioventricular conduction time. 7.7 CYP2D6 Inhibitors Potentiated systemic beta-blockade (e.g., decreased heart rate, depression) has been reported during combined treatment with CYP2D6 inhibitors (e.g., quinidine, SSRIs) and timolol. 7.8 Clonidine Oral beta-adrenergic blocking agents may exacerbate the rebound hypertension which can follow the withdrawal of clonidine. There have been no reports of exacerbation of rebound hypertension with ophthalmic timolol maleate.

Use in Specific Populations

openFDA Drug Labeling

8 USE IN SPECIFIC POPULATIONS 8.1 Pregnancy Risk Summary There are no adequate and well-controlled studies of dorzolamide hydrochloride and timolol maleate ophthalmic solution in pregnant women to inform a drug-associated risk. No evidence of teratogenicity has been observed in mice, rat, and rabbits with dorzolamide hydrochloride or timolol at clinically relevant doses [see Data]. Data Animal Data Oral administration of dorzolamide hydrochloride in pregnant rabbits at oral doses of ≥2.5 mg/kg/day (31 times the recommended human ophthalmic dose) revealed malformations of the vertebral bodies. These malformations occurred at doses that caused metabolic acidosis with decreased body weight gain in dams and decreased fetal weights. No treatment-related malformations were seen at 1 mg/kg/day (13 times the recommended human ophthalmic dose). Oral administration of timolol in pregnant mice, rats and rabbits at does up to 50 mg/kg/day (7,000 times the systemic exposure following the maximum recommended human ophthalmic dose) demonstrated no evidence of fetal malformations. Although delayed fetal ossification was observed at this dose in rats, there were no adverse effects on postnatal development of offspring. Doses of 1,000 mg/kg/day (142,000 times the systemic exposure following the maximum recommended human ophthalmic dose) were maternotoxic in mice and resulted in an increased number of fetal resorptions. Increased fetal resorptions were also seen in rabbits at doses of 14,000 times the systemic exposure following the maximum recommended human ophthalmic dose, in this case without apparent maternotoxicity. 8.2 Lactation Risk Summary It is not known whether dorzolamide hydrochloride and timolol are excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised when dorzolamide hydrochloride and timolol maleate ophthalmic solution is administered to a nursing woman. The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for dorzolamide hydrochloride and timolol maleate ophthalmic solution and any potential adverse effects on the breastfed child from dorzolamide hydrochloride and timolol maleate ophthalmic solution. 8.4 Pediatric Use The safety and effectiveness of dorzolamide hydrochloride ophthalmic solution and timolol maleate ophthalmic solution have been established when administered individually in pediatric patients aged 2 years and older. Use of these drug products in these children is supported by evidence from adequate and well-controlled studies in children and adults. Safety and efficacy in pediatric patients below the age of 2 years have not been established. 8.5 Geriatric Use No overall differences in safety or effectiveness have been observed between elderly and younger patients.

Mechanism of Action

openFDA Drug Labeling

12.1 Mechanism of Action Dorzolamide hydrochloride and timolol maleate ophthalmic solution (preservative free) is comprised of two components: dorzolamide hydrochloride and timolol maleate. Each of these two components decreases elevated intraocular pressure, whether or not associated with glaucoma, by reducing aqueous humor secretion. Elevated intraocular pressure is a major risk factor in the pathogenesis of optic nerve damage and glaucomatous visual field loss. The higher the level of intraocular pressure, the greater the likelihood of glaucomatous field loss and optic nerve damage. Dorzolamide hydrochloride is an inhibitor of human carbonic anhydrase II. Inhibition of carbonic anhydrase in the ciliary processes of the eye decreases aqueous humor secretion, presumably by slowing the formation of bicarbonate ions with subsequent reduction in sodium and fluid transport. Timolol maleate is a beta1 and beta2 (non-selective) adrenergic receptor blocking agent that does not have significant intrinsic sympathomimetic, direct myocardial depressant, or local anesthetic (membrane-stabilizing) activity. The combined effect of these two agents administered as dorzolamide hydrochloride and timolol maleate ophthalmic solution (preservative free) administered twice daily results in additional intraocular pressure reduction compared to either component administered alone, but the reduction is not as much as when dorzolamide administered three times daily and timolol twice daily are administered concomitantly [See Clinical Studies (14) ] .

Description

openFDA Drug Labeling

11 DESCRIPTION Dorzolamide hydrochloride and timolol maleate ophthalmic solution, USP (preservative free) is the combination of a topical carbonic anhydrase inhibitor and a topical beta-adrenergic receptor blocking agent. Dorzolamide hydrochloride, USP is described chemically as: (4 S - trans )-4-(ethylamino)-5,6-dihydro-6methyl-4 H -thieno[2,3- b ]thiopyran-2-sulfonamide 7,7-dioxide monohydrochloride. Dorzolamide hydrochloride is optically active. The specific rotation is: [α] 25°C 405 nm (C=1, water) = ~ - 17°. Its empirical formula is C 10 H 16 N 2 O 4 S 3 •HCl and its structural formula is: Dorzolamide hydrochloride, USP has a molecular weight of 360.91. It is a white or almost white crystalline powder, which is soluble in water and slightly soluble in methanol and very slightly soluble in anhydrous ethanol. Timolol maleate, USP is described chemically as: (-)-1-( tert -butylamino)-3-[(4-morpholino-1,2,5thiadiazol-3-yl)oxy]-2-propanol maleate (1:1) (salt). Timolol maleate, USP possesses an asymmetric carbon atom in its structure and is provided as the levo-isomer. The optical rotation of timolol maleate is: [α] 25°C 405 nm in 1N HCl (C=5) = -12.2° (-11.7° to -12.5°). Its molecular formula is C 13 H 24 N 4 O 3 S•C 4 H 4 O 4 and its structural formula is: Timolol maleate, USP has a molecular weight of 432.50. It is a white, or practically white, odorless or practically odorless powder which is soluble in water, in alcohol, and in methanol; sparingly soluble in chloroform and in propylene glycol; insoluble in ether and in cyclohexane. Timolol maleate, USP is stable at room temperature. Dorzolamide hydrochloride and timolol maleate ophthalmic solution, USP (preservative free) is supplied as a sterile, clear, colorless to nearly colorless, isotonic, buffered, slightly viscous, aqueous solution. The pH of the solution is approximately 5.65, and the osmolarity is 242 - 323 mOsM. Each mL of dorzolamide hydrochloride and timolol maleate ophthalmic solution, USP (preservative free) contains 20 mg dorzolamide (22.26 mg of dorzolamide hydrochloride) and 5 mg timolol (6.83 mg timolol maleate). Inactive ingredients are sodium citrate dihydrate, hydroxyethyl cellulose, sodium hydroxide, mannitol, and water for injection. Dorzolamide hydrochloride and timolol maleate ophthalmic solution, USP (preservative free) does not contain a preservative. Image Image

10 OVERDOSAGE Symptoms consistent with systemic administration of beta-blockers or carbonic anhydrase inhibitors may occur, including electrolyte imbalance, development of an acidotic state, dizziness, headache, shortness of breath, bradycardia, bronchospasm, cardiac arrest and possible central nervous system effects. Serum electrolyte levels (particularly potassium) and blood pH levels should be monitored. [See Adverse Reactions (6) .] A study of patients with renal failure showed that timolol did not dialyze readily.

How Supplied / Storage and Handling

openFDA Drug Labeling

16 HOW SUPPLIED/STORAGE AND HANDLING Dorzolamide Hydrochloride and Timolol Maleate Ophthalmic Solution, USP (Preservative Free) is supplied in a 0.2 mL low density polyethylene single-dose containers in a foil pouch containing 15 low density polyethylene 0.2 mL single-use containers. NDC: 72162-2387-6: Carton of 60 single-use containers NDC: 72162-2387-7: Pouch label Store dorzolamide hydrochloride and timolol maleate ophthalmic solution preservative free at 20 to 25°C (68 to 77°F). Do not freeze. Store in the original pouch. After the pouch is opened, store the remaining single-use containers in the foil pouch to protect from light. Write down the date you open the foil pouch in the space provided on the pouch. Discard any unused containers 15 days after first opening the pouch. Repackaged/Relabeled by: Bryant Ranch Prepack, Inc. Burbank, CA 91504

Adverse event reports

Source: openFDA FAERS
24,870
FAERS reports mentioning this drug
as of 2026-09-25T03:42:24+00:00
A report count is not a risk measure. FAERS accepts voluntary and mandatory reports without establishing causation, and reporting is influenced by how widely a drug is used, how long it has been marketed, and media attention. FDA states that reports “do not prove that the drug caused the event”. Compare rates, not totals.

Attributed to this product's most-reported active ingredient: TIMOLOL MALEATE. Combination products with more than six active ingredients are not attributed, because a report count summed across a long ingredient list measures the list, not the medicine.

Packaging and NDCs

Source: NDC Directory
Every National Drug Code package associated with this medication. The NDC is the identifier used for dispensing, billing and pharmacovigilance in the United States.
Package NDC Product NDC Labeler Description Marketing start
50090-6371-0 50090-6371 A-S Medication Solutions 1 BOTTLE, DROPPER in 1 CARTON (50090-6371-0) / 10 mL in 1 BOTTLE, DROPPER February 13, 2023
65862-946-01 65862-946 Aurobindo Pharma Limited 1 BOTTLE, DROPPER in 1 CARTON (65862-946-01) / 10 mL in 1 BOTTLE, DROPPER May 14, 2021
24208-486-05 24208-486 Bausch & Lomb Incorporated 1 BOTTLE, DROPPER in 1 CARTON (24208-486-05) / 5 mL in 1 BOTTLE, DROPPER July 14, 2009
24208-486-10 24208-486 Bausch & Lomb Incorporated 1 BOTTLE, DROPPER in 1 CARTON (24208-486-10) / 10 mL in 1 BOTTLE, DROPPER July 14, 2009
72162-2166-2 72162-2166 Bryant Ranch Prepack 1 BOTTLE, DROPPER in 1 CARTON (72162-2166-2) / 10 mL in 1 BOTTLE, DROPPER December 7, 2023
72162-2387-6 72162-2387 Bryant Ranch Prepack 4 POUCH in 1 CARTON (72162-2387-6) / 15 VIAL, SINGLE-USE in 1 POUCH (72162-2387-7) / .2 mL in 1 VIAL, SINGLE-USE August 20, 2024
68083-490-01 68083-490 Gland Pharma Limited 1 BOTTLE in 1 CARTON (68083-490-01) / 10 mL in 1 BOTTLE September 19, 2022
50742-323-60 50742-323 Ingenus Pharmaceuticals, LLC 12 POUCH in 1 CARTON (50742-323-60) / 5 VIAL in 1 POUCH (50742-323-05) / .2 mL in 1 VIAL May 2, 2023
42571-382-27 42571-382 Micro Labs Limited 12 POUCH in 1 CARTON (42571-382-27) / 15 VIAL, SINGLE-USE in 1 POUCH / .2 mL in 1 VIAL, SINGLE-USE March 23, 2022
42571-382-73 42571-382 Micro Labs Limited 4 POUCH in 1 CARTON (42571-382-73) / 15 VIAL, SINGLE-USE in 1 POUCH (42571-382-71) / .2 mL in 1 VIAL, SINGLE-USE March 23, 2022
50090-6371 50090-6371 A-S Medication Solutions — July 14, 2009
50383-261 50383-261 Akorn — February 1, 2019
65862-946 65862-946 Aurobindo Pharma Limited — May 14, 2021
24208-486 24208-486 Bausch & Lomb Incorporated — July 14, 2009
72162-2166 72162-2166 Bryant Ranch Prepack — July 14, 2009
72162-2387 72162-2387 Bryant Ranch Prepack — February 15, 2022
68083-490 68083-490 Gland Pharma Limited — September 19, 2022
50742-323 50742-323 Ingenus Pharmaceuticals, LLC — May 2, 2023
42571-382 42571-382 Micro Labs Limited — February 15, 2022

Sources for this page

Every dataset that contributed a fact to this page.
Dataset Agency Used for
NDC Directory FDA Identity, ingredients, strengths, forms, routes, labelers, packages
Drugs@FDA FDA Application, sponsor, submissions, review documents, marketing status
Orange Book FDA Therapeutic equivalence codes, reference drug flags, patents, exclusivity
Drug Labeling FDA / NLM Prescribing information reproduced above
FAERS FDA Adverse event report counts

Generated September 25, 2026 · 12 sections on this page.