 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST]  itchy eyes/nose/throat, runny nose, and sneezing. Pseudoephedrine is a decongestant that helps relieve stuffy nose and ear congestion symptoms.This medication is not recommended for use in children under 12 years of age due to the large amount of pseudoephedrine in it. How to use Allegra-D 24 Hour If you are taking the over-the-counter product to self-treat, read all directions on the product package before taking this medication. If you have any questions, consult your pharmacist. If your doctor has prescribed this medication, take it as directed. Take this medication by mouth on an empty stomach (at least 1 hour before or 2 hours after a meal). Take this medication with water. Do not take with fruit juices (such as apple, grapefruit, or orange) since they may decrease the absorption of this drug. Swallow the tablets whole. Do not crush or chew the tablets. Doing so can release all of the drug at once, increasing the risk of side effects. The dosage is based on your medical condition and response to treatment. Do not increase your dose or take this medication more often than directed. Do not take antacids containing aluminum and magnesium within 2 </s>