2, normal dosage is generally no side effects, but if overuse, it will cause some uncomfortable reactions, such as dizziness, diarrhea, abdominal pain, excessive excitement, insomnia, and endocrine disorders. For example, if a girl takes saffron freely, it is easy to cause an increase in menstrual flow. Saffron in the ordinary use, there are some unsuitable situations need to pay attention to. For example, pregnant women can not take saffron, because saffron can promote uterine contraction, there is a risk of miscarriage. Then there is the menstruating women are not suitable for taking, because the blood-activating effect of saffron can lead to an increase in menstrual flow. If you have too much menstrual flow, of course the person will be weak and panicky, and these adverse reactions come out.