DRUGS & SUPPLEMENTS

Zyquin

Name: Zyquin drug & pharmaceuticals. Zyquin available forms, doses, prices
Creator: sdrugs.com
Published: 2021-11-11T10:10:10+00:00

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Zyquin uses

Indications and usage
Dosage and administration
Dosage forms and strengths
Contraindications
Warnings and precautions
Adverse reactions
Drug interactions
Use in specific populations
Description
Clinical pharmacology
Nonclinical toxicology
Clinical studies
How supplied/storage and handling
Patient counseling information
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Zyquin reviews

1 INDICATIONS AND USAGE

Zyquin ophthalmic solution 0.5% is indicated for the treatment of bacterial conjunctivitis caused by susceptible strains of the following organisms:

Aerobic Gram-Positive Bacteria:

Staphylococcus aureus

Staphylococcus epidermidis

Streptococcus mitis group^*

Streptococcus oralis ^*

Streptococcus pneumoniae

Aerobic Gram-Negative Bacteria:

Haemophilus influenzae

^*Efficacy for this organism was studied in fewer than 10 infections.

Zyquin ophthalmic solution is a topical fluoroquinolone anti-infective indicated for the treatment of bacterial conjunctivitis caused by susceptible strains of the following organisms:

Haemophilus influenzae, Staphylococcus aureus, Staphylococcus epidermidis, Streptococcus mitis group^* , Streptococcus oralis ^* , Streptococcus pneumoniae

^*Efficacy for this organism was studied in fewer than 10 infections. (1)

2 DOSAGE AND ADMINISTRATION

Patients 1 year of age or older: Instill one drop every two hours in the affected eye(s) while awake, up to 8 times on Day 1. Instill one drop two to four times daily in the affected eye(s) while awake on Days 2 through 7.

3 DOSAGE FORMS AND STRENGTHS

Four (4) mL bottle containing 2.5 mL of a 0.5% sterile topical ophthalmic solution.

4 mL size bottle filled with 2.5 mL of Zyquin ophthalmic solution, 0.5%. (3)

4 CONTRAINDICATIONS

None

5 WARNINGS AND PRECAUTIONS

Topical Ophthalmic Use Only
Growth of Resistant Organisms with Prolonged Use (5.2)
Avoidance of Contact Lenses. Patients should not wear contact lenses if they have signs or symptoms of bacterial conjunctivitis or during the course of therapy with Zyquin ophthalmic solution (5.3)

5.1 Topical Ophthalmic Use Only

Zyquin ophthalmic solution should not be introduced directly into the anterior chamber of the eye.

5.2 Growth of Resistant Organisms with Prolonged Use

As with other anti-infectives, prolonged use of Zyquin ophthalmic solution 0.5% may result in overgrowth of nonsusceptible organisms, including fungi. If superinfection occurs, discontinue use and institute alternative therapy. Whenever clinical judgment dictates, the patient should be examined with the aid of magnification, such as slit lamp biomicroscopy and where appropriate, fluoroscein staining.

5.3 Avoidance of Contact Lens Wear

Patients should be advised not to wear contact lenses if they have signs and symptoms of bacterial conjunctivitis or during the course of therapy with Zyquin ophthalmic solution [see PATIENT COUNSELING INFORMATION (17.2)].

6 ADVERSE REACTIONS

Most common adverse reactions occurring in ≥ 1 % of patients included worsening of conjunctivitis, eye irritation, dysgeusia, and eye pain.

To report SUSPECTED ADVERSE REACTIONS, contact Sandoz Inc. at 1-800-525-8747 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

6.1 Clinical Studies Experience

Because clinical studies are conducted under widely varying conditions, adverse reaction rates observed in the clinical studies of a drug cannot be directly compared to rates in the clinical studies of another drug and may not reflect the rates observed in practice.

In clinical studies with Zyquin, the most frequently reported adverse reactions occurring in ≥ 1% of patients in the Zyquin study population (N=717) were: worsening of the conjunctivitis, eye irritation, dysgeusia, and eye pain.

Additional adverse events reported with other formulations of Zyquin ophthalmic solution include chemosis, conjunctival hemorrhage, dry eye, eye discharge, eyelid edema, headache, increased lacrimation, keratitis, papillary conjunctivitis, and reduced visual acuity.

7 DRUG INTERACTIONS

Specific drug interaction studies have not been conducted with Zyquin ophthalmic solution.

8 USE IN SPECIFIC POPULATIONS

8.1 Pregnancy

Pregnancy Category C

Teratogenic Effects: There were no teratogenic effects observed in rats or rabbits following oral Zyquin doses up to 50 mg/kg/day. However, skeletal/craniofacial malformations or delayed ossification, atrial enlargement, and reduced fetal weight were observed in fetuses from rats given ≥150 mg/kg/day (approximately 3000-fold higher than the maximum recommended ophthalmic dose). In a perinatal/postnatal study, increased late post-implantation loss and neonatal/perinatal mortalities were observed at 200 mg/kg/day (approximately 4000-fold higher than the maximum recommended ophthalmic dose).

Because there are no adequate and well-controlled studies in pregnant women, Zyquin ophthalmic solution should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.

8.3 Nursing Mothers

Zyquin is excreted in the breast milk of rats. It is not known whether this drug is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised when Zyquin ophthalmic solution is administered to a nursing woman.

8.4 Pediatric Use

The safety and effectiveness of Zyquin ophthalmic solution in infants below one year of age have not been established. Zyquin ophthalmic solution has been demonstrated in clinical trials to be safe and effective for the treatment of bacterial conjunctivitis in pediatric patients one year or older [see CLINICAL STUDIES ].

8.5 Geriatric Use

No overall differences in safety or effectiveness have been observed between elderly and younger patients.

11 DESCRIPTION

Zyquin sterile ophthalmic solution is an 8-methoxyfluoroquinolone anti-infective for the treatment of bacterial conjunctivitis. Its chemical name is (±)-1-Cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-7-(3-methyl-1-piperazinyl)-4-oxo-3-quinolinecarboxylic acid, sesquihydrate. Its molecular formula is C₁₉H₂₂FN₃O₄ · 1½H₂O, and its molecular weight is 402.42. Its chemical structure is:

Zyquin ophthalmic solution is a clear, pale yellow to greenish yellow, sterile, preserved aqueous solution with an osmolality of 270 to 310 mOsm/kg and a pH of 5.3-5.6.

Zyquin ophthalmic solution contains Active: Zyquin, anhydrous 0.5% (5 mg/mL); Inactives: benzalkonium chloride 0.005%; edetate disodium dihydrate; purified water; and sodium chloride. May contain hydrochloric acid and/or sodium hydroxide to adjust pH.

Structure formula

12 CLINICAL PHARMACOLOGY

12.1 Mechanism of Action

Zyquin is a fluoroquinolone antibacterial [see CLINICAL PHARMACOLOGY ].

12.3 Pharmacokinetics

Zyquin ophthalmic solution 0.3% or 0.5% was administered to one eye of 6 healthy male subjects each in an escalated dosing regimen starting with a single 2 drop dose, then 2 drops 4 times daily for 7 days, and finally 2 drops 8 times daily for 3 days. At all time points, serum Zyquin levels were below the lower limit of quantification (5 ng/mL) in all subjects.

12.4 Microbiology

Zyquin is an 8-methoxyfluoroquinolone with a 3-methylpiperazinyl substituent at C7. The antibacterial action of Zyquin results from inhibition of DNA gyrase and topoisomerase IV. DNA gyrase is an essential enzyme that is involved in the replication, transcription, and repair of bacterial DNA. Topoisomerase IV is an enzyme known to play a key role in the partitioning of the chromosomal DNA during bacterial cell division. The mechanism of action of fluoroquinolones including Zyquin is different from that of aminoglycoside, macrolide, and tetracycline antibiotics. Therefore, Zyquin may be active against pathogens that are resistant to these antibiotics and these antibiotics may be active against pathogens that are resistant to Zyquin. There is no cross-resistance between Zyquin and the aforementioned classes of antibiotics. Cross resistance has been observed between systemic Zyquin and some other fluoroquinolones.

Resistance to Zyquin in vitro develops via multiple-step mutations. Resistance to Zyquin in vitro occurs at a general frequency of 1 x 10^-7 to 10^-10.

Zyquin has been shown to be active against most isolates of the following organisms both microbiologically and clinically, in conjunctival infections as described in the INDICATIONS AND USAGE, Section 1 .

Aerobic Gram-Positive Bacteria:

Staphylococcus aureus

Staphylococcus epidermidis

Streptococcus mitis group^*

Streptococcus oralis ^*

Streptococcus pneumoniae

Aerobic Gram-Negative Bacteria:

Haemophilus influenzae

^*Efficacy for this organism was studied in fewer than 10 infections.

13 NONCLINICAL TOXICOLOGY

13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility

There was no increase in neoplasms among B6C3F1 mice given Zyquin in the diet for 18 months at doses averaging 81 mg/kg/day in males and 90 mg/kg/day in females. These doses are approximately 1600-fold and 1800-fold higher, respectively, than the maximum recommended ophthalmic dose of 0.05 mg/kg/day in a 50 kg human.

There was no increase in neoplasms among Fischer 344 rats given Zyquin in the diet for 2 years at doses averaging 47 mg/kg/day in males and 139 mg/kg/day in females (900- and 2800-fold higher, respectively, than the maximum recommended ophthalmic dose). A statistically significant increase in the incidence of large granular lymphocyte (LGL) leukemia was seen in males treated with a high dose of approximately 2000-fold higher than the maximum recommended ophthalmic dose. Fischer 344 rats have a high spontaneous background rate of LGL leukemia and the incidence in high-dose males only slightly exceeded the historical control range established for this strain.

In genetic toxicity tests, Zyquin was positive in 1 of 5 strains used in bacterial reverse mutation assays: Salmonella strain TA102. Zyquin was positive in in vitro mammalian cell mutation and chromosome aberration assays. Zyquin was positive in in vitro unscheduled DNA synthesis in rat hepatocytes but not human leukocytes. Zyquin was negative in in vivo micronucleus tests in mice, cytogenetics test in rats, and DNA repair test in rats. The findings may be due to the inhibitory effects of high concentrations on eukaryotic type II DNA topoisomerase.

There were no adverse effects on fertility or reproduction in rats given Zyquin orally at doses up to 200 mg/kg/day (approximately 4000-fold higher than the maximum recommended ophthalmic dose for Zyquin ophthalmic solution).

14 CLINICAL STUDIES

In two randomized, double-masked, multicenter clinical trials, where patients 1-89 years of age were dosed for 5 days, Zyquin ophthalmic solution was clinically superior to its vehicle on day 6 in patients with conjunctivitis and positive conjunctival cultures. Clinical outcomes for the trials demonstrated clinical success (resolution of conjunctival hyperaemia and conjunctival discharge) of 58% (193/333) for the gatifloxacin-treated groups versus 45% (148/325) for the vehicle-treated groups. Microbiological outcomes for the same clinical trials demonstrated a statistically superior eradication rate for causative pathogens of 90% (301/333) for Zyquin versus 70% (228/325) for vehicle. Please note that microbiological eradication does not always correlate with clinical outcome in anti-infective trials.

16 HOW SUPPLIED/STORAGE AND HANDLING

Zyquin ophthalmic solution 0.5% is supplied sterile in LDPE DROP-TAINERs white bottles with natural LDPE dispensing plugs and tan polypropylene (PP) closure in the following size:

2.5 mL in 4 mL bottle: NDC 61314-672-25

Storage: Store at 20° to 25°C (68° to 77°F).

Protect from freezing.

17 PATIENT COUNSELING INFORMATION

17.1 Avoiding Contamination of the Product

Patients should be instructed to avoid contaminating the applicator tip with material from the eye, fingers, or other source.

17.2 Avoidance of Contact Lens Wear

Patients should be advised not to wear contact lenses if they have signs and symptoms of bacterial conjunctivitis.

Manufactured by Alcon Laboratories, Inc.

Fort Worth, Texas 76134 for

Sandoz Inc.

Princeton, NJ 08540

Rev. 04/2016

0.5 % Carton

NDC 61314-672-25

Zyquin

Ophthalmic

Solution

0.5%

For Use in the Eyes Only

2.5 mL

SANDOZ

2.5-mL

Zyquin pharmaceutical active ingredients containing related brand and generic drugs:

Gatifloxacin

Zyquin available forms, composition, doses:

Injectable; Infusion; Gatifloxacin
Tablets; Oral; Gatifloxacin 400 mg

Zyquin destination | category:

Human:
Antibacterials
Ear anti-infectives and antiseptics
Eye anti-infectives and antiseptics
Quinolones

Zyquin Anatomical Therapeutic Chemical codes:

J01MA16 - Gatifloxacin
S01AX21 - Gatifloxacin

Zyquin pharmaceutical companies:

Zydus Cadila

References

Dailymed."GATIFLOXACIN SOLUTION/ DROPS [SANDOZ INC]". https://dailymed.nlm.nih.gov/dailym... (accessed August 28, 2018).
Dailymed."GATIFLOXACIN: DailyMed provides trustworthy information about marketed drugs in the United States. DailyMed is the official provider of FDA label information (package inserts).". https://dailymed.nlm.nih.gov/dailym... (accessed August 28, 2018).
"Gatifloxacin". https://pubchem.ncbi.nlm.nih.gov/co... (accessed August 28, 2018).

Frequently asked Questions

Can i drive or operate heavy machine after consuming Zyquin?

Depending on the reaction of the Zyquin after taken, if you are feeling dizziness, drowsiness or any weakness as a reaction on your body, Then consider Zyquin not safe to drive or operate heavy machine after consumption. Meaning that, do not drive or operate heavy duty machines after taking the capsule if the capsule has a strange reaction on your body like dizziness, drowsiness. As prescribed by a pharmacist, it is dangerous to take alcohol while taking medicines as it exposed patients to drowsiness and health risk. Please take note of such effect most especially when taking Primosa capsule. It's advisable to consult your doctor on time for a proper recommendation and medical consultations.

Is Zyquin addictive or habit forming?

Medicines are not designed with the mind of creating an addiction or abuse on the health of the users. Addictive Medicine is categorically called Controlled substances by the government. For instance, Schedule H or X in India and schedule II-V in the US are controlled substances.

Please consult the medicine instruction manual on how to use and ensure it is not a controlled substance.In conclusion, self medication is a killer to your health. Consult your doctor for a proper prescription, recommendation, and guidiance.

Review

sdrugs.com conducted a study on Zyquin, and the result of the survey is set out below. It is noteworthy that the product of the survey is based on the perception and impressions of the visitors of the website as well as the views of Zyquin consumers. We, as a result of this, advice that you do not base your therapeutic or medical decisions on this result, but rather consult your certified medical experts for their recommendations.