Side effects and Allergic reaction of Azithromycin-250/500 tablets

Allergic reaction

Patients who suffer from an allergic reaction to Azithromycin can experience blood in the stool 4–10 days after ingestion, although cases of this have been recorded as early as after the first day of ingestion.

These allergies are usually non-severe if the treatment is immediately stopped. A severe reaction includes a severe rash, hives, breathing difficulties, or dizziness.

Side effects

Most common side effects are gastrointestinal; diarrhea (5%), nausea (3%), abdominal pain (3%) and vomiting. Fewer than 1% of patients stop taking the drug due to side effects. Serious allergic reactions, nervousness, dermatologic reactions, and fatalities have been reported. As with all antimicrobial agents, pseudomembranous colitis can occur during and up to several weeks after azithromycin therapy. This drug may interfere with the effectiveness of birth control pills; other forms of contraception may be required during the treatment period.

Azithromycin suspension tastes bad, which can make it difficult to administer to young children (e.g. 2 - 5 years) who may spit it out.