The DEA has determined that the psychedelics DMT, psilocybin, mescaline (peyote), and harmaline (ayahuasca) do not cause physical dependence.

True / False.

True.

Explanation:

DEA (Drug Drug Enforcement Administration) may be defined as the agency of United States that maintains the drug distribution and its trafficking. DEA was established by Richard Nixon.

The drugs like harmaline (ayahuasca), psychedelics DMT, mescaline (peyote) and psilocybin do not cause physical dependence. The use of these drugs for multiple times does not cause any dependence. These drugs has been determined by DEA.

Thus, the answer is true.