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.
Pharmacological drugs and supplements can both have significant adverse effects. Research continues to understand the benefits and risks of both. This study has revealed a caution against using melatonin for dementia patients because of the negative side effects. Talk to your doctor if you or someone you are caring for is having difficulty sleeping.