Progesterone will have the following reactions: 1, about 1-3 hours after taking progesterone will appear dizzy symptoms, after taking progesterone is best to rest accordingly, and is best taken orally before going to bed, to avoid the occurrence of dizziness. 2, after taking progesterone there may be some people will appear nausea, vomiting, anorexia and other corresponding gastrointestinal reactions, can be taken after meals to reduce gastrointestinal reactions The progesterone can be taken after meals to reduce gastrointestinal reactions. Due to individual differences, each person’s reaction is different, progesterone can only be used under the guidance of a doctor to give treatment, and take the medication in strict accordance with medical advice.