Zerotuss-D Syrup 100 ml belongs to a class of medication called cough and cold preparations primarily used to treat dry cough. Coughing (dry or productive) is the body’s way of clearing irritants (like allergens, mucus or smoke) from airways and preventing infection. There are two types of coughs, namely. Dry cough and chesty cough. A dry cough is tickly and doesn't produce any vicious or thick mucus, while a chesty cough (wet cough) means mucous or sputum is produced to help clear your airways. 

Zerotuss-D Syrup 100 ml is a combination of two drugs, namely: Chlorpheniramine (antihistamine) and Dextromethorphan (cough suppressant). Chlorpheniramine belongs to the class of antihistamines or anti-allergic that works by blocking the action of histamine, a substance responsible for causing allergic reactions. It helps to provide relief from symptoms of allergy such as sneezing, running nose, watery eyes, itching, swelling, and congestion or stiffness. On the other hand, Dextromethorphan belongs to the class of cough suppressants that works by blocking the transmission of nerve signals from the cough centre in the brain to the muscles that produce cough. Thus, Zerotuss-D Syrup 100 ml helps relieve overall cough, cold and allergic symptoms. 

Take Zerotuss-D Syrup 100 ml with or without food as advised by your doctor with the help of a measuring cup. Your doctor will recommend how often you take Zerotuss-D Syrup 100 ml based on your medical condition. Some people may experience dry mouth, throat or nose, drowsiness, blurred vision, constipation, dizziness, restlessness or excitation. Most of these side effects of Zerotuss-D Syrup 100 ml do not require medical attention and gradually resolve over time. However, if the side effects persist or worsen, please consult your doctor.

If you are allergic to Zerotuss-D Syrup 100 ml or any other medicines, please tell your doctor. If you are pregnant or breastfeeding, it is advised to inform your doctor before using Zerotuss-D Syrup 100 ml. Zerotuss-D Syrup 100 ml is not recommended for children below 12 years of age. If you are about to undergo any medical tests or surgery, please inform your doctor that you are taking Zerotuss-D Syrup 100 ml. Avoid using Zerotuss-D Syrup 100 ml if you have taken medicines such as linezolid, phenelzine, selegiline, rasagiline, isocarboxazid, tranylcypromine and methylene blue injection in the past 14 days. Drink plenty of fluids while taking Zerotuss-D Syrup 100 ml to loosen mucus. If you have glaucoma, urinary problems, enlarged prostate, phenylketonuria (a congenital disability that causes accumulation of amino acid, phenylalanine in the body), cough with mucus or cough caused by asthma, smoking, chronic bronchitis or emphysema (a lung condition causing shortness of breath), inform your doctor before taking Zerotuss-D Syrup 100 ml. 

Zerotuss-D Syrup 100 ml is a combination of two drugs, namely: Chlorpheniramine and Dextromethorphan, primarily used to treat dry cough. Chlorpheniramine belongs to the class of antihistamines (anti-allergic drugs) that works by blocking the action of histamine, a substance responsible for causing allergic reactions. It helps to provide relief from symptoms of allergy such as sneezing, running nose, watery eyes, itching, swelling and congestion or stiffness. Dextromethorphan belongs to the class of cough suppressants that works by blocking the transmission of nerve signals from the cough centre in the brain to the muscles that produce cough. Thus, it decreases the need to cough.

If you are allergic to Zerotuss-D Syrup 100 ml or any other medicines, please tell your doctor. If you are pregnant or breastfeeding, it is advised to inform your doctor before using Zerotuss-D Syrup 100 ml. Zerotuss-D Syrup 100 ml is not recommended for children below 12 years of age. If you are about to undergo any medical tests or surgery, please inform your doctor that you are taking Zerotuss-D Syrup 100 ml. Avoid using Zerotuss-D Syrup 100 ml if you have taken medicines such as linezolid, phenelzine, selegiline, rasagiline, isocarboxazid, tranylcypromine and methylene blue injection in the past 14 days. Drink plenty of fluids while taking Zerotuss-D Syrup 100 ml to loosen mucus. If you have glaucoma, urinary problems, enlarged prostate, phenylketonuria (a birth defect that causes accumulation of amino acid, phenylalanine in the body), cough with mucus or cough caused by asthma, smoking, chronic bronchitis or emphysema (a lung condition causing shortness of breath), inform your doctor before taking Zerotuss-D Syrup 100 ml.

• Zerotuss-D Syrup 100 ml may contain phenylalanine, so check the medication label if you have phenylketonuria (PKU).
• Do not use Zerotuss-D Syrup 100 ml only to make a child sleepy. 
• Contact doctor if your symptoms do not improve even after 7 days.
• Contact doctor immediately if you develop fever, rash or headaches after taking Zerotuss-D Syrup 100 ml.