Methylphenidate is used as part of a comprehensive treatment programme for ADHD. 1  Tablets: 5 mg, 10 mg, 20 mg; these contain small amounts of lactose. RitalinÂ® contains gelatin.  Modified-release tablets: 18 mg , 27 mg , 36 mg, 54 mg; these may contain lactose.
30 Most Valuable Guitars In The World. 1 Fender âReach out to Asiaâ Stratocaster â $2.7 million. The most expensive guitar ever to appear at auction, the âReach out to Asiaâ Fender Stratocaster was sold in order to raise money to help the victims of the 2004 tsunami disaster in the Indian Ocean.
Standard Tuning. Standard tuning is the most popular tuning among acoustic and electric guitar players. On a guitar set in standard tuning, the strings going from bass to treble are E, A, D, G, B and E. Their corresponding Hertz (Hz) frequencies are 82, 110, 147, 196, 247 and 300 Hz.