Note: If dexamethasone is to be mixed with other medications in a syringe driver, as much diluent as possible must be added before the addition of dexamethasone. 3 Dexamethasone comes as a tablet and a solution to take by mouth. Your doctor will prescribe a dosing schedule that is best for you. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. They can prescribe medications and/or offer other suggestions that are effective in managing such problems. Monitoring and Testing: You will be checked regularly by your health care professional while you are taking dexamethasone, to monitor side effects and check your response to therapy. There are many other diseases that can be affected by steroid use, and many other medicines that can interact with steroids. Your dosage may change if you Drug Interactions - Dosage - During Pregnancy - Side Effects. medications are known to interact with dexamethasone. note Aerosolized medications Am J Health-Syst Pharm—Vol 67 Feb 1, 2010 227 note Mixing and compatibility guide for commonly used aerosolized medications Continued 2. Mixing Drugs and Alcohol Prescription pain medicines and antianxiety medications such as Valium and Xanax can have an additive effect when mixed with alcohol, says Grissinger. Yes, you can take Avodard - Levaquin and Dexamethasone at the same time if all those médications are required and prescribed for you. Pay attention to other interactions with levofloxacin. Some drugs can affect your blood levels of other drugs you take, which may increase side effects or make the medications less effective. Tell your doctor about all your current medicines. Many drugs can interact with dexamethasone, especially: Other medications can affect the removal of dexamethasone from your body, which may affect how dexamethasone works. Examples include azole antifungals (such as ketoconazole), barbiturates (such as. Dexamethasone - Clinical Pharmacology. Glucocorticoids, naturally occurring and synthetic, are adrenocortical steroids that are readily absorbed from the gastrointestinal tract.