
Before you start the treatment, read the manufacturer's printed information leaflet from inside the pack.If you have ever had an allergic reaction to a medicine.This includes any medicines which are available to buy without a prescription, as well as herbal and complementary medicines. If you are taking any other medicines.If you have been told you have one of the following rare inherited conditions: porphyria or glucose-6-phosphate dehydrogenase (G6PD) deficiency.If you have a problem where your nerves cause pain or numbness, called peripheral neuropathy.If you have been told you have anaemia, or if you have low levels of vitamin B or folic acid.If you have diabetes (diabetes mellitus).

If you have any problems with the way your liver works, or if you have any problems with the way your kidneys work.Although nitrofurantoin can be taken during pregnancy, it is still important that you tell your doctor about being pregnant. For these reasons, before you start taking nitrofurantoin it is important that your doctor knows: Some medicines are not suitable for people with certain conditions, and sometimes a medicine can only be used if extra care is taken.
