It is impossible for your healthcare provider to know whether you will develop insomnia while taking Didrex. Also, in some cases, if a person does develop insomnia, it is difficult to know whether these problems are because of Didrex or other factors.
If you develop insomnia while taking Didrex, make sure to talk with your healthcare provider. There are other treatments that he or she may be able to recommend, such as adjusting the Didrex dosage or trying another weight-loss drug.