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Travoprost Ophthalmic Solution, 0.004%

Prescription

商品名: Travoprost Ophthalmic Solution, 0.004%

剤形
Drops
投与経路
OPHTHALMIC

About This Medication

11 DESCRIPTION Travoprost is a synthetic prostaglandin F analog. Its chemical name is [1 R -[1α( Z ),2β(1 E ,3 R *),3α,5α]]-7-[3,5-Dihydroxy-2-[3-hydroxy-4-[3-(trifluoromethyl) phenoxy]-1-butenyl]cyclopentyl]-5-heptenoic acid, 1-methylethylester. It has a molecular formula of C 26 H 35 F 3 O 6 and a molecular weight of 500.55 g/mol. The chemical structure of travoprost is: Travoprost, USP is a pale yellow to yellowish viscous oil that is freely soluble in acetonitrile, toluene, ethyl acetate and methanol. It is practically insoluble in hexane and water. Travoprost ophthalmic solution, USP (ionic buffered solution) 0.004% is supplied as a clear colorless, sterile, buffered aqueous solution of travoprost with a pH of approximately 5.7 and an osmolality of approximately 290 mOsmol/kg. Travoprost ophthalmic solution, USP (ionic buffered solution) contains Active: travoprost USP, 0.04 mg/mL; Inactives: boric acid, polyoxyl 40 hydrogenated castor oil, propylene glycol, sodium hydroxide and/or hydrochloric acid (to adjust pH), sorbitol, water for injection and zinc chloride. chemical structure of travoprost

有効成分

成分 含有量
Travoprost -

適応症と用法

1 INDICATIONS AND USAGE Travoprost ophthalmic solution (ionic buffered solution) 0.004% is indicated for the reduction of elevated intraocular pressure (IOP) in patients with open-angle glaucoma or ocular hypertension. Travoprost ophthalmic solution (ionic buffered solution) is a prostaglandin analog indicated for the reduction of elevated intraocular pressure (IOP) in patients with open-angle glaucoma or ocular hypertension. ( 1 )

作用のしくみ

12.1 Mechanism of Action Travoprost free acid, a prostaglandin analog is a selective FP prostanoid receptor agonist which is believed to reduce IOP by increasing uveoscleral outflow. The exact mechanism of action is unknown at this time.

用量と投与方法

2 DOSAGE AND ADMINISTRATION The recommended dosage is one drop in the affected eye(s) once daily in the evening. Travoprost ophthalmic solution (ionic buffered solution) should not be administered more than once daily since it has been shown that more frequent administration of prostaglandin analogs may decrease the IOP lowering effect. Reduction of the IOP starts approximately 2 hours after the first administration with maximum effect reached after 12 hours. Travoprost ophthalmic solution (ionic buffered solution) may be used concomitantly with other topical ophthalmic drug products to lower IOP. If more than one topical ophthalmic drug is being used, the drugs should be administered at least 5 minutes apart. One drop in the affected eye(s) once daily in the evening. ( 2 )

Side Effects Overview

6 ADVERSE REACTIONS Most common adverse reaction (30% to 50%) is conjunctival hyperemia. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Mylan at 1-877-446-3679 (1-877-4-INFO-RX) or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials 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. The most common adverse reaction observed in controlled clinical trials with travoprost ophthalmic solution 0.004% was ocular hyperemia, which was reported in 30% to 50% of patients. Up to 3% of patients discontinued therapy due to conjunctival hyperemia. Ocular adverse reactions reported at an incidence of 5% to 10% in these clinical trials included decreased visual acuity, eye discomfort, foreign body sensation, pain, and pruritus. Ocular adverse reactions reported at an incidence of 1 % to 4% in clinical trials with travoprost ophthalmic solution 0.004% included abnormal vision, blepharitis, blurred vision, cataract, conjunctivitis, corneal staining, dry eye, iris discoloration, keratitis, lid margin crusting, ocular inflammation, photophobia, subconjunctival hemorrhage, and tearing. Non-ocular adverse reactions reported at an incidence of 1 % to 5% in these clinical studies were allergy, angina pectoris, anxiety, arthritis, back pain, bradycardia, bronchitis, chest pain, cold/flu syndrome, depression, dyspepsia, gastrointestinal disorder, headache, hypercholesterolemia, hypertension, hypotension, infection, pain, prostate disorder, sinusitis, urinary incontinence, and urinary tract infections. 6.2 Postmarketing Experience Additional adverse reactions have been identified during post approval use of travoprost ophthalmic solution 0.004% in clinical practice. Because they are reported voluntarily from a population of unknown size, estimates of frequency cannot be made. The reactions, which have been chosen for inclusion due to either their seriousness, frequency of reporting, possible causal connection to travoprost, or a combination of these factors, include: arrhythmia, vomiting, epistaxis, tachycardia, and insomnia. In postmarketing use with prostaglandin analogs, periorbital and lid changes including deepening of the eyelid sulcus have been observed.

警告と注意事項

禁忌

薬物動態

12.3 Pharmacokinetics Travoprost is absorbed through the cornea and is hydrolyzed to the active free acid. Data from 4 multiple dose pharmacokinetic studies (totaling 107 subjects) have shown that plasma concentrations of the free acid are below 0.01 ng/mL (the quantitation limit of the assay) in two-thirds of the subjects. In those individuals with quantifiable plasma concentrations (N = 38), the mean plasma C max was 0.018 ± 0.007 ng/mL (ranged 0.01 to 0.052 ng/mL) and was reached within 30 minutes. From these studies, travoprost is estimated to have a plasma half-life of 45 minutes. There was no difference in plasma concentrations between Days 1 and 7, indicating steady-state was reached early and that there was no significant accumulation. Travoprost, an isopropyl ester prodrug, is hydrolyzed by esterases in the cornea to its biologically active free acid. Systemically, travoprost free acid is metabolized to inactive metabolites via beta-oxidation of the α (carboxylic acid) chain to give the 1,2-dinor and 1,2,3,4-tetranor analogs, via oxidation of the 15-hydroxyl moiety, as well as via reduction of the 13, 14 double bond. The elimination of travoprost free acid from plasma was rapid and levels were generally below the limit of quantification within one hour after dosing. The terminal elimination half-life of travoprost free acid was estimated from fourteen subjects and ranged from 17 minutes to 86 minutes with the mean half-life of 45 minutes. Less than 2% of the topical ocular dose of travoprost was excreted in the urine within 4 hours as the travoprost free acid.

Frequently Asked Questions

1 INDICATIONS AND USAGE Travoprost ophthalmic solution (ionic buffered solution) 0.004% is indicated for the reduction of elevated intraocular pressure (IOP) in patients with open-angle glaucoma or ocular hypertension. Travoprost ophthalmic solution (ionic buffered solution) is a prostaglandin analog indicated for the reduction of elevated intraocular pressure (IOP) in patients with open-angle glaucoma or ocular hypertension. ( 1 )

2 DOSAGE AND ADMINISTRATION The recommended dosage is one drop in the affected eye(s) once daily in the evening. Travoprost ophthalmic solution (ionic buffered solution) should not be administered more than once daily since it has been shown that more frequent administration of prostaglandin analogs may decrease the IOP lowering effect. Reduction of the IOP starts approximately 2 hours after the first administration with maximum effect reached after 12 hours. Travoprost ophthalmic solution (ionic buffered solution) may be used concomitantly …

5 WARNINGS AND PRECAUTIONS • Pigmentation: Pigmentation of the iris, periorbital tissue (eyelid), and eyelashes can occur. Iris pigmentation likely to be permanent ( 5.1 ) • Eyelash Changes: Gradual change to eyelashes including increased length, thickness and number of lashes. Usually reversible. ( 5.2 ) 5.1 Pigmentation Travoprost ophthalmic solution has been reported to cause changes to pigmented tissues. The most frequently reported changes have been increased pigmentation of the iris, periorbital tissue (eyelid), and eyelashes. Pigmentation is expected …

4 CONTRAINDICATIONS None. None ( 4 )

Travoprost Ophthalmic Solution, 0.004% is a prescription medication. You will need a valid prescription from a licensed healthcare provider.

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References & Data Sources

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データソース: DailyMed (NLM), openFDA, MFDS

Medical Disclaimer

This content is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making medication decisions.

Data sources: ChEMBL, PubChem, DailyMed.