Browse an A-Z list of Brand and Generic drugs to learn about your prescription medication. Uses. Phenylephrine is used for the temporary relief of stuffy nose, sinus, and ear symptoms caused by the common cold, flu, allergies, or other breathing illnesses (e.g., sinusitis, bronchitis). List of QT-Prolonging Medications The list that follows does not include every medication that prolongs the QT interval. Additionally, some of these medications are more likely to cause QT prolongation than others. Index of comprehensive articles on common prescription and OTC medications and drugs, c listing. Monographs cover generic and brand name, drug class and mechanism, dosing, drug interactions, side effects,and use. Drugs.com provides accurate and independent information on more than 24,000 prescription drugs, over-the-counter medicines and natural products. Page 1 of 29 MEDICAL STAFF–APPROVED THERAPEUTIC INTERCHANGES Therapeutic Interchange is the practice of dispensing a therapeutically equivalent medication in COMMON MEDICATIONS SAFE IN PREGNANCY Clindamycin ACNE: Benzoyl Peroxide Topical Erythromycin. Salicylic Acid. AVOID: Accutane Metamucil. Retin-A. Tetracycline Some medicines that are used for treating other medical conditions can cause elevated blood sugar in people with diabetes. You may need to monitor your blood glucose more closely if you take one of the medicines listed below. Un médicament générique est un médicament identique ou équivalent à celui d’une marque et il est habituellement de 30 à 50 % moins coûteux que le médicament de marque. C Phen ® (as a combination product containing Chlorpheniramine, Phenylephrine)see Phenylephrine; C Phen DM ® (as a combination product containing Chlorpheniramine, Dextromethorphan, Phenylephrine)see Phenylephrine.