1 Negative side effects of the medication were minimal at low (18 mg) to middle (36 mg) doses. 2  However, beyond 36 mg, these negative side effects became more pronounced. 3  Sleep problems (such as insomnia) began at the 36 mg dosage for Concerta, with the most pronounced effects seen in younger and smaller children. However, the percentage of children who experienced severe appetite suppression dramatically increased between 36 to 54 mg treatments of Concerta. 2  At 36 mg, the presence of or increase in tics (see related post on ADHD and tics) was seen, and a further increase was seen for some children at the 54 mg dosage.
Ornamental and Gemstone Market. The world jade market is estimated at 300 tonnes per year, with three quarters of this originating in B.C. The price of raw jade varies from less than $10 to $100 per kilogram depending on quality and quantity. The best B.C. nephrite is bought by local artists and transformed into artwork which is in demand internationally.
The signature color of jade is green, and this is-all things being equal-the most valuable color. Jade is also available in whites, greys, almost black, brown, red, and lilac.