Lactobacillus acidophilus tablets can be taken by pregnant women without risk to the fetus. Lactobacillus acidophilus tablet is a kind of intestinal live bacteria preparation, composed of four kinds of bacteria powder, including Chinese strain of Lactobacillus acidophilus, Japanese strain of Lactobacillus acidophilus, Streptococcus faecalis and Bacillus subtilis, etc. It belongs to the intestinal flora adjustment medicine, which can break down sugar to produce lactic acid and improve the acidity of the intestine, thus inhibiting the reproduction of intestinal pathogenic bacteria. Lactobacillus acidophilus tablets are mainly used for intestinal dysbiosis caused by intestinal flora, such as light acute diarrhea, etc. When antacids and antibacterial drugs are used together with Lactobacillus acidophilus tablets, the efficacy of this drug can be weakened, so they should be taken separately. In addition, bismuth, tannic acid, medicinal charcoal, tinctures, etc., can inhibit the adsorption of live bacteria, can not be used together.