Cipralex is the brand name of a medicine called escitalopram. It is not meant for anxiety but for depression (that does not respond to other medicines) and panic disorders. I fail to understand why it was given to you even if your were suffering from anxiety because anxiety/tension are quite different from major depression and panic disorders.
Ciplralex does cause loss of libido (sexual drive), impotence and ejaculation disorders. However, on discontinuation, these symptoms gradually disappear. Hence there is no need to worry.