It was once believed that lactic acid build-up was the cause of muscle fatigue. The assumption was lactic acid had a pickling effect on muscles, inhibiting their ability to contract. The impact of lactic acid on performance is now uncertain, it may assist or hinder muscle fatigue.
Pioglitazone is an anti-diabetic drug (thiazolidinedione-type, also called glitazones) used along with a proper diet and exercise program to control high blood sugar in patients with type 2 diabetes. It works by helping to restore your body's proper response to insulin, thereby lowering your blood sugar.
Hence, it is classified as a controlled substance in many countries. Internationally, phentermine is a schedule IV drug under the Convention on Psychotropic Substances. In the United States, it is classified as a Schedule IV controlled substance under the Controlled Substances Act. Phentermine, like many other prescription drugs, works with neurotransmitters in the brain.