Azithromycin is an active as erythromycin against gram-positive organisms but is more active against several gram-negative organisms including H.influenzae.this makes it highly effective against intracellular pathogens such as mycoplasma, chlamydia, salmonella.mode of action is inhibition of protein synthesis.

the best product in indian market i experienced iS AZITHRAL -500, prepared from alembic.
this antibiotic is highly effective i throat infection.