CNF Activ Tablet belongs to the class of medications called ‘cough and cold preparations’ used in the treatment of the common cold and allergic symptoms such as the runny nose, sneezing, itchy or watery eyes and blocked nose. The common cold is a respiratory illness of the nose and throat caused by ‘rhinoviruses’. Allergies are immune system reactions to foreign bodies or allergens such as certain foods, chemicals, pet dander, or pollen.

CNF Activ Tablet contains Fexofenadine, Paracetamol, and Phenylephrine. Fexofenadine is an antiallergic medicine. It blocks the release of histamine, chemical substances that cause allergic symptoms such as the runny nose, watery eyes, itching, sneezing, and swelling or congestion. Paracetamol is an analgesic (reduce pain) and antipyretic (reduce fever). It can block the production of prostaglandins (chemical substances), thereby decreasing pain, swelling, and inflammation. Phenylephrine is a decongestant that can reduce swelling in the nasal passages making it easy to breathe.

You should take this medicine exactly as prescribed by the doctor. The common side-effects of CNF Activ Tablet are nausea, vomiting, headache, ear pain, trouble sleeping, restlessness, and palpitations (pounding heart). These side-effects usually go away without requiring any medical attention. However, if any of these side-effects persist or get worse, inform your doctor immediately.

It is not recommended to take CNF Activ Tablet if you are allergic to any contents of it. It should not be used in patients with severe liver failure. It should be used with caution in children, patients with liver or kidney disease, pregnant women, breastfeeding mothers, and elderly people. Alcohol increases the risk of side-effects. CNF Activ Tablet may decrease alertness, so do not drive or operate heavy machinery if you are not fully alert.

CNF Activ Tablet is composed of three medicines, namely Fexofenadine, Paracetamol, and Phenylephrine. Fexofenadine is an anti-allergic drug that works by blocking the action of histamine, a substance responsible for causing allergic reactions.  It helps relieve allergy symptoms such as sneezing, running nose, watery eyes, itching, swelling, congestion or stiffness. Paracetamol is an analgesic (relieves pain) and antipyretic (reduces fever) that works by inhibiting the production of certain chemical messengers in the brain known as 'prostaglandin's responsible for pain and fever. Phenylephrine helps in shrinking the blood vessels in the nostrils and the nasal passage and reducing stuffy nose. Together, CNF Activ Tablet can effectively treat common cold and allergy symptoms.

Do not take CNF Activ Tablet if you have been taking medicines to treat depression (monoamine oxidase inhibitors) such as selegiline and rasagiline in the past 14 days. Before taking CNF Activ Tablet , inform your doctor if you have any liver or kidney disease, diabetes, hyperactive thyroid, heart problems, fits, and glaucoma (increased pressure in the eye). CNF Activ Tablet may cause liver damage on prolonged use or when used in high doses, so it is not recommended for use in patients with severe liver failure.

• If you are undergoing an allergy test, the doctor might advise you to stop CNF Activ Tablet 5 days before the test as this medicine may interfere with the test results.
• Check the labels carefully before taking any over-the-counter (OTC) medicines as many pain and cold medicines contain paracetamol as an ingredient.