The effects of bromhexine hydrochloride and S-carboxymethyl-L-cysteine on guinea-pig uterine microflora

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Abstract
This study used guinea‐pigs as a mammalian model to investigate the effects of bromhexine hydrochloride and S‐carboxymethyl‐L‐cysteine on the integrity of the cervical mucus plug. It was shown that under normal circumstances the uterus is sterile, but following drug administration microorganisms began to appear in the uterus with no significant effect on the vaginal microbial population. It therefore appears that these two mucolytic agents may reduce cervical mucus viscoelasticity. After the animals had been mated, microorganisms were isolated from the uterus even in the absence of drug treatment.