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Neonatal abstinence syndrome (NAS) is one of the most frequent manifestations in the neonates of drug-addicted mothers. It is caused by the abrupt interruption of the transplacentar passage of drugs from the mother to the fetus. The aim of this study was to evaluate the correlation between drugs taken during pregnancy and NAS. Data were examined relating to 223 neonates born during 1975-1992 to drug-addict mothers. Neonates were subdivided into four groups according to the maternal toxicological profile. It was thus possible to observe that there is a greater prevalence of NAS in cases of polypharmacomania and that it gradually diminishes in the children of heroin addicts and those receiving methadone treatment. Moreover, the intensity of the syndrome is correlated to the high doses of methadone and/or heroin. In the group of neonates whose mothers had complied with the methadone treatment protocol, the severity of NAS was proportional to the dose taken by the mother. In conclusion, the management of pregnant drug addicts following a controlled methadone treatment programme is accompanied by improved obstetric help and is the most suitable way of reducing perinatal complications and the prevalence of NAS.

Thirty-nine children (18 males, 21 females) suffering from intestinal stasis were treated with lactitol or a reference drug (lactulose in crystalline form), according to a balanced randomization, for 15 days. The first group of children included 19 subjects treated with lactitol, the second group included 20 subjects treated with lactulose. The dosages of lactitol and lactulose were, respectively, of 150-350 mg/kg and of 150-300 mg/kg daily per os with a single administration in the morning. During the trial, the children did not take any concomitant drug. For each patient the tested parameters were: number of intestinal evacuations, consistency of stool and adverse reactions (abdominal swelling, abdominal pain, nausea, vomiting, meteorism) daily; routine laboratory tests at the beginning and at the end of the trials. The results showed that the subjects treated with lactitol have manifested, besides a proved therapeutic efficacy, a better tolerability and compliance than the subjects treated with lactulose.