Win Z 500 Tablet
Azithromycin
500mg
Arya Pharma Lab Pvt. Ltd.
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Available as:
Indications
Win Z 500 Tablet is used for:
Bacterial infections, bacterial endocarditis, typhoid fever, community-acquired pneumonia, uncomplicated gonorrhea, streptococcal pharyngitis/tonsillitis, COPD, acute bacterial sinusitis, acute otitis media, uncomplicated UTI, Uncomplicated gonorrhea, PID, non-gonococcal urethritis, chancroid, acute salmonellosis, cervicitis, babesiosis, chlamydial infections, pelvic inflammatory disease, PID, traveler's diarrhea,
Adult Dose
Adult: PO Resp tract infections; Skin and soft tissue infections
500 mg once daily for 3 days.
Chancroid; Non-gonococcal cervicitis/urethritis due to Chlamydia trachomatis; Uncomplicated genital infections due to Chlamydia trachomatis
1 g as a single dose.
Prophylaxis of disseminated MAC infections 1.2 g once wkly.
Treatment or secondary propjhylaxis: 500 mg once daily w/ other antimycobacterials.
Uncomplicated gonorrhoea 2 g as a single dose. Granuloma inguinale Initial: 1 g, then 500 mg/day until all lesions have healed completely.
Active immunisation against typhoid fever caused by Salmonella typhi 1 g once daily for 5 days.
IV Community-acquired pneumonia 500 mg as a single IV daily dose for 2 days, then 500 mg single oral dose daily to complete 7-10 days of therapy.
Pelvic inflammatory disease 500 mg as a single IV daily dose for 1-2 days, then 250 mg single oral dose daily to complete a 7-day therapy.
Elderly: No dosage adjustment needed.
Hepatic impairment: No dosage adjustment needed.
Child Dose
Child: PO: q24h
Otitis: 10 mg/kg/day for 1 day, then 5 mg/kg for 4 days; or 10 mg/kg/day for 3 days; or 30 mg/kg once.
Pharyngitis: 12 mg/kg/day for 5 days.
Sinusitis: 10 mg/kg/day for 3 days.
CABP: 10 mg/kg for 1 day, then 5 mg/kg/day for 4 days or 60 mg/kg once of ER susp
MAC/PCP prophylaxis: 5 mg/kg/day
IV: 10 mg/kg q24h
>6 mth 10 mg/kg;
15-25 kg: 200 mg;
26-35 kg: 300 mg;
36-45 kg: 400 mg.
All doses to be taken once daily for 3 days.
Renal Dose
Renal impairment: No dosage adjustment needed.
Administration
Oral Administration
Tablet: Take tablets without regard to food; however, food may enhance tolerability
Oral suspension
Conventional oral suspension (100 mg/5 mL, 200 mg/5 mL) may be stored for 10 days after reconstitution and taken without regard to food
Conventional 1 g package must be taken immediately after reconstitution
Extended-release oral suspension must be taken on empty stomach within 12 hours of reconstitution; given only in single dose; not interchangeable with immediate release formulation
IV Preparation
Dilute 500-mg vial in 4.8 mL of SWI (100 mg/mL)
Dilute further in NS to 1 mg/mL (500 mL) or 2 mg/mL (250 mL)
IV Administration
1 mg/mL solution: Infuse over 3 hours
2 mg/mL solution: Infuse over 1 hour
Contra Indications
Known hypersensitivity to azithromycin, erythromycin, any macrolide or ketolide antibiotic. Coadministration w/ pimozide. History of cholestatic jaundice/hepatic dysfunction associated w/ prior use of azithromycin.
Precautions
May increase the risk of Torsades de pointes and fatal heart arrhythmias in patients w/ prolonged QT interval, low K or Mg blood levels, slow heart rate and medication treating abnormal heart rhythms. Impaired hepatic and renal function. Pregnancy and lactation. Monitoring Parameters Liver function tests, CBC w/ differential.
Lactation: Unknown whether drug is excreted into breast milk; use with caution
Pregnancy-Lactation
Interactions
Increases serum concentrations of digoxin, ciclosporin, terfenadine, hexobarbital and phenytoin. Decreased rate of absorption w/ antacids containing aluminium and magnesium. Increased risk of ergot toxicity.
Potentially Fatal: Increased risk of cardiotoxicity w/ pimozide.
Adverse Effects
Side effects of Azithromycin :
>10%
High single dose therapy
Diarrhea (52.8%),Nausea (32.6%),Abdominal pain (27%),Loose stool (19.1%)
1-10%
Cramping (2-10%),Vaginitis (2-10%),Dyspepsia (9% with single high dose therapy),Flatulence (9% with single high dose therapy),Vomiting (6.7% with single high dose therapy),Malaise (1.1%)
<1%
Agitation,Allergic reaction,Anemia,Anorexia,Candidiasis,Chest pain,Conjunctivitis,Constipation,Dermatitis (fungal),Dizziness,Eczema,Edema,Enteritis,Facial edema,Fatigue,Gastritis,Headache,Hyperkinesia,Hypotension,Increased cough,Insomnia,Leukopenia,Malaise,Melena,Mucositis,Nervousness,Oral candidiasis,Pain,Palpitations,Pharyngitis,Pleural effusion,Pruritus,Pseudomembranous colitis,Rash,Rhinitis,Seizures,Somnolence,Urticaria,Vertigo
Potentially Fatal: Angioedema and cholestatic jaundice.
Mechanism of Action
Azithromycin is a semisynthetic azalide antibiotic. It blocks transpeptidation by binding to 50s ribosomal subunit of susceptible organisms and disrupting RNA-dependent protein synthesis at the chain elongation step.
Note
Win Z 500 500mg Tablet manufactured by Arya Pharma Lab Pvt. Ltd.. Its generic name is Azithromycin. Win Z 500 is availble in Nepal.
Farmaco Nepal drug index information on Win Z 500 Tablet is not intended for diagnosis, medical advice or treatment; neither intended to be a substitute for the exercise of professional judgment.