<p>No examples of interactions between Tibolone and other medicines have been reported in clinical practice. However, the following potential interactions should be considered on a theoretical basis: Enzyme-inducing compounds such as barbiturates, carbamazepine, hydantoins, and rifampicin may enhance the metabolism of Tibolone and thus decrease its therapeutic effect. Since Tibolone may increase blood or fibrinolytic activity (lower fibrinogen levels; higher AT III, plasminogen, and fibrinolytic activity values), it may enhance the effect of anticoagulants.</p>