Azithromycin : Indication, Dosage, Side-effect


In this blog, I will give you information regarding azithromycin Antibiotic.It is used to treat many bacterial infections.


Antibiotic means medicine which inhibit growth or destroy bacteria.There are many antibiotics available today in market.It is differenciate under groups.

Macrolides group contains medicines like azithromycin,erythromycin,roxithromycin, clarithromycin,etc.

Azithromycin antibiotic comes under macrolides group.It discover in 1980 & in medical use since 1988.As per W.H.O. it is most essential,most effective & safest antibiotic.

Here, I will explain azithromycin


  1. Respiratory tract infection (RTI)
    tonsillitis,pharyngitis,pneumonia etc
  2. Urinary tract infection (UTI)
  3. Ear – otitis media
  4. Skin & soft tissue infection
  5. Genital infections
    Gonorrhoea, Chlamydial infection
  6. Also useful in Covid19 as per reseach

Azithromycin kills many bacteria mention as below

  • Mycoplasma
  • Legionella
  • Chlamydia
  • Salmonella

Typhoid is caused by salmonella typhi bacteria.So, azithromycin also given in typhoid fever. Mostly it is given at the end of treatment for 5 days to clear bacterial infection from intestine. Go To List


Approx 20-40mg/kg/day in three divided doses
10 KG child 100mg/day 100mg once
20 KG child 200mg/day 200mg once
50kg or more 500mg/day 500mg or 250mg + 250mg Go To List



Each & every molecule which have effect, it has also side-effect.We can not deny adverse effect or side-effect.But it is not happen to everybody, it only occurs to someone who have sensitivity to particular molecule.

It is patient’s responsibility that they should bring sensitivity report with them if any, while consulting doctor.

If adverse effect occur, that may like as below.

  1. Nausea,vomiting,diarrhoea,epigastric distress
  2. Headache,dizziness,vertigo
  3. Allergy – skin rashes,urticaria
  4. Jaundice
  5. Cardiac effect – it increases QT interval,it means it causes abnormal changes in electrical activity of heart.So,this medicine should be avoid in person who have heart problem.


Use cautiously in hepatic & renal impairment

Pseudomembranous colitis Go To List


Azithromycin is available in market with many brand names as below

  • Zathrin made by CDC
  • Zady made by mankind
  • Azibact made by ipca
  • Azee made by cipla

It’s available in different strength as below

  • 100mg liquid
  • 200mg liquid
  • 250mg tablet
  • 500mg tablet Go To List

Hope this article is helpful to you.Message or mail me for any kind of query related to medical field, I will try my best to reply you. To watch this content in video, click below link.