Yes, according to a new study of Lactobacillus reuter. Eighty-three breastfed infants were given either oral L reuter or simethicone. By the end of the 28-day study, colicky symptoms had improved in 95% of the babies given the probiotic, compared with 7% of the babies who received simethicone (Savino F et al: Pediatrics 2007;119:e124).