1. Clinical Overview
Lactobacillus (120Million spores) is a high-potency probiotic preparation containing viable, heat-stable spores of Lactobacillus species, primarily Lactobacillus sporogenes (now taxonomically reclassified as Bacillus coagulans). Each dose delivers 120 million colony-forming units (CFUs) of these beneficial bacteria. In the Indian context, it is widely used as a gastrointestinal regulator to restore and maintain gut flora, particularly following antibiotic therapy, infectious diarrhea, or in conditions of dysbiosis. The spore form ensures survival through gastric acidity, allowing for targeted delivery and colonization in the intestines.
| Onset | Duration | Bioavailability |
|---|---|---|
| Symptomatic relief in acute diarrhea may be observed within 24-48 hours. Full colonization and ecological effects on gut microbiota may take several days to weeks of consistent use. | Effects are dependent on continued administration. After discontinuation, the exogenous strain may persist in the gut for 1-4 weeks, but this is highly variable based on individual gut ecology and diet. | Not applicable in the conventional sense for live microorganisms. The spore formulation provides high gastric acid resistance, with an estimated 70-90% of spores reaching the small intestine viable. |
2. Mechanism of Action
Lactobacillus spores exert their beneficial effects through multiple mechanisms: 1) Competitive Exclusion: Adherence to intestinal epithelium, competing with pathogens for binding sites and nutrients. 2) Production of Antimicrobial Substances: Secretion of bacteriocins and organic acids (primarily L-lactic acid) that lower luminal pH, inhibiting growth of acid-sensitive pathogenic bacteria. 3) Immunomodulation: Enhancement of gut barrier function, stimulation of secretory IgA production, and modulation of cytokine profiles (e.g., downregulation of pro-inflammatory TNF-α, upregulation of anti-inflammatory IL-10). 4) Metabolic Activity: Fermentation of non-digestible fibers to produce short-chain fatty acids (SCFAs) like butyrate, which serve as an energy source for colonocytes.
3. Indications & Uses
- Acute infectious diarrhea (viral or bacterial)
- Antibiotic-associated diarrhea (prevention and treatment)
- Irritable Bowel Syndrome (IBS) - for symptom relief of bloating and flatulence
- General intestinal flora imbalance (dysbiosis)
4. Dosage & Administration
Adult Dosage: 120 million spores once or twice daily, preferably with meals. For acute diarrhea: Twice daily until symptoms resolve, then once daily for 3-5 days. For maintenance: Once daily.
Administration: Administer orally with water. Can be taken with or without food, but taking with a meal may improve tolerance. If on antibiotics, maintain a gap of at least 2-3 hours. Do not mix with hot beverages (>40°C). The capsule can be opened and mixed with cool water, milk, or yogurt for those who cannot swallow capsules.
5. Side Effects
Common side effects may include:
- Mild abdominal bloating or gas during initial days of therapy (usually self-limiting).
6. Drug Interactions
| Drug | Effect | Severity |
|---|---|---|
| Antibiotics (e.g., Ciprofloxacin, Amoxicillin) | Concurrent intake may reduce probiotic viability. Antibiotics may kill the administered Lactobacillus. | Moderate |
| Immunosuppressants (e.g., Tacrolimus, Cyclosporine, Azathioprine) | Theoretical increased risk of probiotic translocation and infection in profoundly immunosuppressed patients. | Low (Theoretical) |
| Antifungals (e.g., Fluconazole) | No significant interaction expected. May be used together. | None |
7. Patient Counselling
- DO take regularly for the prescribed duration, even if symptoms improve.
- DO store in a cool, dry place as per instructions.
- DO maintain a gap of 2-3 hours if you are also taking an antibiotic.
- DON'T take with hot liquids.
- DON'T use if the sachet/capsule is damaged or if the product is past its expiry date.
8. Toxicology & Storage
Overdose: No reports of acute overdose. Extremely high doses may lead to significant bloating, gas, or constipation.
Storage: Store below 30°C, in a cool and dry place. Protect from moisture and direct sunlight. Do not refrigerate unless specified by the manufacturer (spore forms are usually stable at room temperature). Keep out of reach of children.