Heroine and LSD are examples of Schedule square drugs.

Heroine and LSD are examples of Schedule I drugs.Schedule I drugs are classified as having a high potential for abuse, no accepted medical use in the United States, and a lack of accepted safety for use under medical supervision. This classification is determined by the Drug Enforcement Administration (DEA) in the United States.It is important to note that the classification of drugs can vary by country, and the specific laws and regulations regarding drug scheduling may differ.