Ortho Biotic 100 by Ortho Molecular Products

If you just finished antibiotics and want to reduce loose stools, a high dose probiotic is the practical choice. One capsule delivers 100 billion CFU, which suits short-term gut rebuilding after antibiotics, travel diarrhea, or a tough stomach bug. It also fits patients whose stool testing shows low Lactobacillus or Bifidobacterium, or low secretory IgA (the antibody that guards your gut lining). For mild, day-to-day upkeep, this potency is usually more than you need.

Multiple Lactobacillus and Bifidobacterium species compete with opportunists, make acids that lower gut pH, and produce short‑chain fatty acids like butyrate (fuel for colon cells). That combination improves stool form and reduces post‑infection gas for many people within 1 to 2 weeks. These bacteria also nudge immune balance in the gut, which is why some users see fewer antibiotic‑associated issues. Big claims about curing bloating or fixing the immune system don’t hold up consistently.

Take one capsule daily with a meal for better tolerance. During an antibiotic course, separate the probiotic by at least 2 to 3 hours, then continue daily for 2 to 4 weeks after the last antibiotic dose. Most people notice stool changes within 7 to 14 days; give it a full month for steadier patterns. This is a repletion-style dose. For long-term maintenance once you’re stable, many step down to a lower‑CFU probiotic.

Avoid probiotics if you have a central venous catheter, are severely immunocompromised (active chemotherapy, uncontrolled HIV, post‑transplant), or are critically ill—rare bloodstream infections have been reported in these settings. If you have small intestinal bacterial overgrowth, high doses can worsen bloating; work with a clinician. Stop and reassess if you develop fever, worsening pain, or persistent diarrhea. Pregnant users should review with their obstetric clinician first.