Taking Chlorpheniramine Maleate in early pregnancy may have an effect on the fetus, pregnant women should use this drug with caution during pregnancy and try not to use Chlorpheniramine Maleate if there are other safe alternatives. Chlorpheniramine maleate is an anti-allergic drug that can be used for allergic rhinitis, allergies of the skin and mucous membranes, drug rashes and contact dermatitis. Adverse reactions such as drowsiness, fatigue, weakness, dryness of the mouth, nose and throat may occur during use. Pregnant and lactating women should use the drug with caution. It is contraindicated for those who are allergic to the components of the product. If you accidentally took Chlorpheniramine Maleate before you found out that you are pregnant, you do not have to give up on the fetus because of this. In the course of subsequent pregnancies, you should pay attention to regular obstetric examinations, and if there are any abnormalities in the fetus, they need to be dealt with in a timely manner. Try not to use the drug after you find out you are pregnant, and use a drug that is safer for pregnant women under the guidance of your doctor.