We're unable to sign you in at this time. Please try again in a few minutes.
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
There may be a problem with your account. Please contact the AMA Service Center to resolve this issue.
Contact the AMA Service Center:
Telephone: 1 (800) 262-2350 or 1 (312) 670-7827  *   Email: subscriptions@jamanetwork.com
Error Message ......
Article |


JAMA. 1968;204(3):259-260. doi:10.1001/jama.1968.03140160069022.
Text Size: A A A
Published online


Much speculative nonsense has been written in recent years about the possible harmful effects of hallucinogens. The fact is that we just do not have sufficient reliable scientific evidence about many of the frequently discussed side effects. Reports of such effects often have been circumstantial and indifferent to the possibility of a post hoc ergo propter hoc relationship.

Discussions of the morality of using hallucinogens are relevant but probably deserve no high priority than consideration of the ethics of a society which sanctions—and pockets enormous profits from—the sale of alcohol and cigarettes. Untoward psychic reactions are known to occur with the hallucinogens, although we do not know the incidence or prevalence.

But what of physical harm due to the hallucinogens? Until recently there was little reliable, reproducible data. Beginning in March 1967, however, several groups of investigators have reported the occurrence of chromosomal damage, not only in vitro but also


Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?




Also Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
Please click the checkbox indicating that you have read the full article in order to submit your answers.
Your answers have been saved for later.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.


Some tools below are only available to our subscribers or users with an online account.

0 Citations

Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

Related Content

Customize your page view by dragging & repositioning the boxes below.