A randomized placebo-controlled, parallel-group study, crossover-design. Intervention: Sanprobi Barrier-multispecies probiotic product, 2,5 x10 9 cfu/gram or placebo, cross-over design

A randomized placebo-controlled, parallel-group study, crossover-design. Intervention: placebo comparator (carrier material of Sanprobi Barrier-multispecies probiotic product , not containing bacterial strains,similar appearance as the probiotic, cross-over design

Diabetes Mellitus, Type 2

Metformin Adverse Reaction

Multi-strain probiotic Sanprobi Barrier (Bifidobacterium lactis W52, Lactobacillus brevis W63, Lactobacillus casei W56, Lactobacillus lactis W19, Lactobacillus lactis W58, Lactobacillus acidophilus W37, Bifidobacterium bifidum W23, Lactobacillus salivarius W24) or placebo. Patients will be randomized to one of the two products ("A" or "B") each containing probiotic/placebo and administered for 12 weeks. After 12 weeks of supplementation, the probiotic/placebo product "A" or "B" will be discontinued and reintroduced again after next 4 weeks - patients will be switched to the other "A or B" group of probiotic/placebo arm. Patients will be administered with 4 capsules per day for 24 weeks (12 weeks for group A probiotic/placebo and 12 weeks for group B probiotic/placebo allowing 4 weeks washout between the group assignment).

Sanprobi Barrier-multispecies probiotic

Carrier material of Sanprobi Barrier-multispecies probiotic product, not containing bacterial strains,similar appearance as the probiotic

Placebo Comparator

Department of Internal Diseases, Diabetology and Nephrology

Probiotics in Metformin Intolerant Patients With Type 2 Diabetes

The Effect of Multi-strain Probiotics on Gastrointestinal Symptoms in Patients With Type 2 Diabetes and Metformin Intolerance. A 32-week Prospective, Single Center, Randomized, Placebo Controlled, Cross-over Clinical Trial.

Questionnaire to Assess Character and Severity of Metformin Intolerance (adapted from Laura J. Mc Creight et al.). The score indicates how the patient tolerates metformin.
Score interpretation:
0 - 10 = tolerant (T) 11-20 = mild intolerance (MI) 21-30 = intolerant (I) 31-50 = severely intolerant (SI)

glutathione reductase/diarrea

Probiotics in Metformin Intolerant Patients With Type 2 Diabetes

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