[Effect of the oral beta-mimetic drug clenbuterol (Contraspasmin, Spiropent) and orally and intravenously administered Partusisten on the rheobase].

Clenbuterol (Contraspasmin, Spiropent) was used to treat threatened delivery in a dosage of three times 0.02 mg per day because of its beta-mimetic effects and the halflife time for elimination of 34 hours. We examined the effect of Clenbuterol on the maternal rheobase as a factor to estimate the influence of this drug on neuromuscular structures of maternal organism. After the first oral application of Clenbuterol we found a significant decrease in this value and after second and third application a distinct fluctuation. This fact shows besides the positive beta-mimetic properties the side-effects on the vegetative nerve system and on neuromuscular structures of the female body.