NutriStack
Azithromycin and Probiotics, a synergy.
Probiotic supplementation during azithromycin therapy reduces antibiotic-associated diarrhea and helps preserve gut microbiome diversity, which can be significantly disrupted by macrolide exposure.
One pair, every claim cited. The two substances, the type, the mechanism, the recommendation, and the primary literature.
Same shape as the other 1,729 pairs in the public database.
From the interaction database
What the row says.
Every entry follows the same shape: what is happening, the mechanism, the recommendation, and the primary literature.
At a glance
- Substances
- Azithromycin and Probiotics
- Pair type
- Synergy
- Evidence (highest tier)
- Strong
- Source citations
- 2 sources
- Stack Score effect
- +2 to your Stack Score (per scored synergy row).
- Scope
- Supplement × Prescription
- Last verified
- May 30, 2026
Synergy · Strong evidence
Synergy
What is happening. Probiotic supplementation during azithromycin therapy reduces antibiotic-associated diarrhea and helps preserve gut microbiome diversity, which can be significantly disrupted by macrolide exposure.
Mechanism. Probiotics restore colonization resistance disrupted by macrolide-induced changes in gut microbiome composition, competing with opportunistic pathogens for nutrients and binding sites.
Recommendation. Take probiotics throughout your azithromycin course, separated by at least 2 hours from each antibiotic dose. Continue for at least 1 week after the antibiotic ends.
Minimum separation. 120
Sources (2)
- Doar NW, Samuthiram SD. Qualitative Analysis of the Efficacy of Probiotic Strains in the Prevention of Antibiotic-Associated Diarrhea. Cureus. 2023;15(6):e40261. PMID 37440799
- McFarland LV. Probiotics for the Primary and Secondary Prevention of C. difficile Infections: A Meta-analysis and Systematic Review. Antibiotics (Basel). 2015;4(2):160-78. PMID 27025619
Stack Score
How this pair moves the number.
Effect on the composite score
If both Azithromycin and Probiotics are in the same stack, this pair applies +2 to your Stack Score (per scored synergy row).
The full algorithm, the clamping rules, and four worked stacks are documented at /methodology/stack-score.
Check your full routine
One pair was the worked example. NutriStack runs every pair in your stack at once.
Drop in your supplements and prescriptions and the public database surfaces every interaction, synergy, timing rule, and contraindication, every one linked to its primary source.