 <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] -2345.The precautions of Clarinex-D 12 HOUR Oral: Before taking this medication, tell your doctor or pharmacist if you are allergic to desloratadine or pseudoephedrine; or to loratadine; or if you have any other allergies. Also, tell your doctor if you have had serious side effects from similar medications (such as other decongestants, including phenylephrine). This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details. Before using this medication, tell your doctor or pharmacist your medical history, especially of: glaucoma, difficulty urinating (such as due to an enlarged prostate), high blood pressure (hypertension), heart/blood vessel disease (such as coronary artery disease), overactive thyroid (hyperthyroidism), diabetes, kidney disease, liver disease. This drug does not usually make you drowsy when used at recommended doses. However, this drug may make you dizzy. Alcohol or marijuana (cannabis) can make you more dizzy. Do not drive, use machinery, or do anything that needs alertness until you can do it safely. Limit alcoholic beverages. Talk to your </s>