The hyponatremia is caused by a relatively smaller loss in total body water. 1  any cause of hypovolemia such as prolonged vomiting, decreased oral intake, severe diarrhea. 2  diuretic use (due to the diuretic causing a volume depleted state and thence ADH release, and not a direct result of diuretic-induced urine sodium loss)
Biotin is safe but is not likely to do much to help your hair grow unless you are deficient in biotin, which is uncommon. A reasonable dose is 5 mg. However, you may get better results by taking a quality multivitamin, eating a healthy diet rich in organic fruits and vegetables, avoid junk food and getting adequate sleep.
For hair growth/ regrowth and loss, it is recommended that you should not exceed 10000mcg per day. Find out more about biotin for hair; Biotin for Hair Growth, How Much Biotin for Hair Growth Results, Reviews; Biotin for Hair Loss , Thinning & Reviews â How Much Biotin for Hair loss &Thinning? Biotin Dosage- 5000Mcg, 1000Mcg & 10000Mcg Supplement