Ultraclear Diesel Exhaust Fluid (DEF) is a urea-based fluid engineered for diesel engines as the reducing agent in Selective Catalytic Reduction (SCR) systems. SCR systems have been installed to meet all EPA2010 standards on diesel engine vehicles since March or 2010.
Hormonal Side Effects of Melatonin. Hormonal effects are also associated with the use of melatonin supplements. This includes increase or decrease in thyroid hormone, growth hormone, prolactin, progesterone, estradiol, cortisol and others.
Dizziness has been reported as potential side effect of using supplements such as garlic, melatonin, saw palmetto, red yeast rice, policosanol and black cohosh. Vertigo, a particular form of dizziness, has been reported with the use of some weight loss supplements that contain stimulants, such as caffeine.