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.
The most common side effects of methotrexate include nausea or vomiting and abnormalities in liver function tests. Liver function tests are blood tests your doctor may order to watch your liver. These side effects are more likely to occur at higher doses.