Yes, there are medications that interfere with potassium absorption or its functions in the body. Diuretics such as furosemide and bumetanide, antipsychotic drugs like Risperdal and Seroquel, insulin medications, albuterol in asthma inhalers, laxatives and enemas, as well as, decongestants can interfere with your potassium levels. It’s best to consult a physician before taking any potassium supplements as you need to be sure it’s not interfering with your medications or vice versa. If you are on any of the above-mentioned medications, make sure to check that your potassium levels to avoid such deficiencies.