1. Eustachian tube-either of the paired tubes connecting the middle ears to the nasopharynx; equalizes air pressure on the two sides of the eardrum. auditory tube. salpinx-a tube in the uterus or the ear. middle ear, tympanic cavity, tympanum-the main cavity of the ear; between the eardrum and the inner ear. Translations.
Indiana considers not only well-known drugs like marijuana, heroin, and cocaine to be controlled substances, but also the compounds used to manufacture them. Some CDS, like codeine, may be legally possessed with a valid prescription.
DEA. The U.S. Drug Enforcement Administration lists marijuana in the most restrictive of five classes that the agency uses to regulate dangerous drugs. Marijuana is classified as a Schedule I substance, which is the ranking reserved for drugs with the greatest potential for abuse and with no medicinal value.Heroin, ecstasy and LSD are listed in that category, too, while cocaine and methamphetamine rank one level lower than marijuana, as Schedule II.arijuana has been classified as a Schedule I drug, the highest rank by the Drug Enforcement Administration, since the 1970s. Marijuana's listing among the most dangerous drugs has been heavily influenced over the years by politics and public opinion, while advocacy groups have been working to change it for decades.