Pharmacodynamic properties
Clenbuterol is a beta-sympathomimetic agonist which has potent bronchodilator and tocolytic properties. The earlier in the stage of labour that treatment is given, the longer will be the period of abolition of uterine contractions. Once the cervix is fully dilated or the foetal feet are passing into the cervical area, The product will only delay parturition for a maximum of a few hours.
Pharmacokinetic properties
Clenbuterol and its metabolites are rapidly distributed and excreted. Most of the dose is excreted by 96 hours, largely as clenbuterol.