The tracks usually thought of by fans as the best on the soundtrack are Debris, Don't Let Go, Aningaaq, Tiangong, Shenzou and Gravity.
Phenibut was first synthesized by the Russians during the 1960s to relieve tension, anxiety and fear, according to one 2001 study. (It is still prescribed there for these purposes today.) Phenibut is a nootropic or smart drug, a supplement that purports to enhance cognitive performance by increasing memory and attention.
Pentamidine (sold as NebuPent, Pentam, and Pentacarinat) is a treatment for pneumocystis pneumonia (PCP) caused by the fungus Pneumocystis jiroveci. It used to be called Pneumocystis carinii. See Fact Sheet 515 for more information on PCP. Pentamidine is normally not the first choice for treatment of PCP.