As requesed some info about it. Magic Medicine in other words is cough medicine with a certain ingredient in it, the ingredient being Guaifenesin (or Guaiphenesin). It is designed to thin down mucus in your throat allowing you to cough it up (i know, lovely!) but it also has the same affect on any mucus anywhere else in your body like your cervical mucus. By thinning your cervical mucus it allows spermies to swin through easier and hence making it easier for them to reach their destination. When Buying cough medicine with Guaifenesin in it you must make sure that its the Only active ingredient, if it isnt then any other active ingredient may counter act the Guaifenesin and dry your mucus up. For the UK girlies Asdas own cherry flavoured cough medicine at 88p is reccomended. For the US (and possibly Aus) Robitussin is the best one to buy.