4 using diesel exhaust fluid Diesel exhaust fluiD (Def) Diesel Exhaust Fluid (DEF) is a non-flammable fluid comprised of 33% ammonia-based urea and 67% purified water. DEF is used with diesel engine exhaust systems to reduce the amount of emissions produced by turning Nitrogen Oxide (NOx) into nitrogen and water vapor.
Side Effects of Metaproterenol. Some of the most common side effects of metaproterenol include nervousness, headaches, and a dry mouth. While these are mostly minor, there are some potentially serious problems to be aware of.
Possible side effects of Prempro include: 1  A breast lump. 2  Migraine headache. 3  Pain or swelling in your lower legs.  Sudden numbness or weakness, especially on one side of the 1  body. Chest pain or heavy feeling, pain spreading to the arm or shoulder, nausea, sweating, general ill feeling.