Latanoprost Ophthalmic Solution
FDA Drug Information • Also known as: Latanoprost Ophthalmic Solution
- Brand Names
- Latanoprost Ophthalmic Solution
- Drug Class
- Prostaglandin Analog [EPC]
- Route
- OPHTHALMIC
- Dosage Form
- SOLUTION/ DROPS
- Product Type
- HUMAN PRESCRIPTION DRUG
Description
11 DESCRIPTION Latanoprost, USP is a prostaglandin F2α analogue. Its chemical name is isopropyl-(Z)-7[(1R,2R,3R,5S)3,5-dihydroxy-2-[(3R)-3-hydroxy-5 phenylpentyl]cyclopentyl]-5-heptenoate. Its molecular formula is C26H40O5 and its chemical structure is: Latanoprost, USP is a colorless to slightly yellow oil that is very soluble in acetonitrile and freely soluble in acetone, ethanol, ethyl acetate, isopropanol, methanol, and octanol. It is practically insoluble in water. Latanoprost ophthalmic solution 0.005% is supplied as a sterile, isotonic, buffered aqueous solution of latanoprost with a pH of between 6.3 to 7.0 and an osmolality of between 250 to 310 mOsmol/kg. Each mL of latanoprost ophthalmic solution contains 50 mcg of latanoprost. Benzalkonium chloride, 0.02% is added as a preservative. The inactive ingredients are: sodium chloride, sodium dihydrogen phosphate monohydrate, disodium hydrogen phosphate anhydrous, and water for injection. One drop contains approximately 1.5 mcg of latanoprost. API struture and M.W
What Is Latanoprost Ophthalmic Solution Used For?
1 INDICATIONS AND USAGE Latanoprost ophthalmic solution is indicated for the reduction of elevated intraocular pressure (IOP) in patients with open-angle glaucoma or ocular hypertension. Latanoprost ophthalmic solution is a prostaglandin F 2α analogue indicated for the reduction of elevated intraocular pressure in patients with open-angle glaucoma or ocular hypertension. (1)
Dosage and Administration
2 DOSAGE AND ADMINISTRATION The recommended dosage is one drop in the affected eye(s) once daily in the evening. If one dose is missed, treatment should continue with the next dose as normal. The dosage of latanoprost ophthalmic solution should not exceed once daily; the combined use of two or more prostaglandins, or prostaglandin analogs including latanoprost ophthalmic solution is not recommended. It has been shown that administration of these prostaglandin drug products more than once daily may decrease the IOP lowering effect or cause paradoxical elevations in IOP. Reduction of the IOP starts approximately 3 to 4 hours after administration and the maximum effect is reached after 8 to 12 hours. Latanoprost ophthalmic solution may be used concomitantly with other topical ophthalmic drug products to lower IOP. In vitro studies have shown that precipitation occurs when eye drops containing thimerosal are mixed with latanoprost ophthalmic solution. If more than one topical ophthalmic drug is being used, the drugs should be administered at least five (5) minutes apart. Contact lenses should be removed prior to the administration of latanoprost ophthalmic solution, and may be reinserted 15 minutes after administration. One drop in the affected eye(s) once daily in the evening. (2)
Side Effects (Adverse Reactions)
6 ADVERSE REACTIONS The following adverse reactions were reported in postmarketing experience and are discussed in greater detail in other sections of the label: Iris pigmentation changes [see Warnings and Precautions (5.1)] Eyelid skin darkening [see Warnings and Precautions (5.1)] Eyelash changes (increased length, thickness, pigmentation, and number of lashes) [see Warnings and Precautions (5.2)] Intraocular inflammation (iritis/uveitis) [see Warnings and Precautions (5.3)] Macular edema, including cystoid macular edema [see Warnings and Precautions (5.4)] Most common adverse reactions (5-15%) from clinical trials are blurred vision, burning and stinging, conjunctival hyperemia, foreign body sensation, itching, increased pigmentation of the iris, and punctate keratitis. (6) To report SUSPECTED ADVERSE REACTIONS, contact Lifestar Pharma LLC at 1-888-995-4337 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch . See 17 for PATIENT COUNSELING INFORMATION. 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, the adverse reaction rates observed in the clinical studies of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in clinical practice. Latanoprost ophthalmic solution was studied in three multicenter, randomized, controlled clinical trials. Patients received 50 mcg/mL latanoprost ophthalmic solution once daily or 5 mg/mL active-comparator (timolol) twice daily. The patient population studied had a mean age of 65±10 years. Seven percent of patients withdrew before the 6-month endpoint. Table 1: Ocular Adverse Reactions and Ocular Signs/Symptoms Reported by 5-15% of Patients Receiving Latanoprost Symptom/Finding Adverse Reactions (incidence (%)) Latanoprost (n=460) Timolol (n=369) Foreign body sensation 13 8 Punctate keratitis 10 9 Stinging 9 12 Conjunctival hyperemia 8 3 Blurred vision 8 8 Itching 8 8 Burning 7 8 Increased pigmentation of the Iris 7 0 Less than 1% of the patients treated with latanoprost ophthalmic solution required discontinuation of therapy because of intolerance to conjunctival hyperemia. Table 2: Adverse Reactions That Were Reported in 1-5% of Patients Receiving Latanoprost Adverse Reactions (incidence (%)) Latanoprost (n=460) Timolol (n=369) Ocular Events/Signs and Symptoms Excessive tearing 4 6 Eyelid discomfort/pain 4 2 Dry eye 3 3 Eye pain 3 3 Eyelid margin crusting 3 3 Erythema of the eyelid 3 2 Photophobia 2 1 Eyelid edema 1 3 Blepharitis 1 3 Systemic Events Upper respiratory tract infection/nasopharyngitis/influenza 3 3 Myalgia/arthralgia/back pain 1 0.5 Rash/allergic skin reaction 1 0.3 6.2 Postmarketing Experience The following reactions have been identified during postmarketing use of latanoprost ophthalmic solution in clinical practice. Because they are reported voluntarily from a population of unknown size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. The reactions, which have been chosen for inclusion due to either their seriousness, frequency of reporting, possible causal connection to latanoprost ophthalmic solution, or a combination of these factors, include: Nervous System Disorders : Dizziness; headache; toxic epidermal necrolysis Eye Disorders : Eyelash and vellus hair changes of the eyelid (increased length, thickness, pigmentation, and number of eyelashes); keratitis; corneal edema and erosions; intraocular inflammation (iritis/uveitis); macular edema, including cystoid macular edema; trichiasis; periorbital and lid changes resulting in deepening of the eyelid sulcus; iris cyst; eyelid skin darkening; localized skin reaction on the eyelids; conjunctivitis; pseudopemphigoid of the ocular conjunctiva. Respiratory, Thoracic and Mediastinal Disorders : Asthma and exacerbation of asthma; dyspnea Gastrointestinal Disorders : Nausea; vomiting Skin and Subcutaneous Tissue Disorders : Pruritis Infections...
Contraindications
4 CONTRAINDICATIONS Known hypersensitivity to latanoprost, benzalkonium chloride, or any other ingredients in this product. Known hypersensitivity to latanoprost, benzalkonium chloride, or any other ingredients in this product. (4)
Overdosage
10 OVERDOSAGE IV infusion of up to 3 mcg/kg of latanoprost in healthy volunteers produced mean plasma concentrations 200 times higher than during clinical treatment with latanoprost ophthalmic solution and no adverse reactions were observed. IV dosages of 5.5 to 10 mcg/kg caused abdominal pain, dizziness, fatigue, hot flushes, nausea, and sweating. If overdosage with latanoprost ophthalmic solution occurs, treatment should be symptomatic.
How Supplied
16 HOW SUPPLIED/STORAGE AND HANDLING Latanoprost ophthalmic solution 0.005% is supplied as a clear, isotonic, buffered, preserved colorless solution in a low density polyethylene natural bottle with a low density polyethylene natural nozzle and a turquoise high density polyethylene screw cap with a tamper-evident ring in the following pack size: 2.5 mL fill in a 5 mL bottle, 0.005% (50 mcg/mL) NDC 70756-680-15 Package of 1 bottle Storage: Protect from light. Store unopened bottle(s) under refrigeration at 2°C to 8°C (36°F to 46°F). During shipment to the patient, the bottle may be maintained at temperatures up to 40°C (104°F) for a period not exceeding 8 days. Once a bottle is opened for use, it may be stored at room temperature up to 25°C (77°F) for 6 weeks.
About This Information
This drug information is sourced from FDA-approved labeling via the openFDA database. It is intended for educational and reference purposes only. This is not medical advice. Always consult your healthcare provider before making decisions about medication. Drug information may be updated by the FDA; check with your pharmacist for the most current information.
What are side effects?
Side effects are unwanted reactions that can occur when taking a medication. They range from mild (headache, nausea) to severe (allergic reactions, organ damage). Not everyone experiences side effects, and severity varies. Report any concerning side effects to your doctor.
What are drug interactions?
Drug interactions occur when a medication is affected by another drug, food, or supplement. Interactions can make medications less effective or cause dangerous side effects. Always tell your doctor about all medications and supplements you take.