Discovery of the Psychic Effects of LSD
The solution of the ergotoxin problem had led to fruitful results, described here
only briefly, and had opened up further avenues of research. And yet I could not forget
the relatively uninteresting LSD-25. A peculiar presentiment—the feeling that this substance could possess properties other than those established in the first investigations—induced
me, five years after the first synthesis, to produce LSD-25 once again so that
a sample could be given to the pharmacological department for further tests.
This was quite unusual; experimental substances, as a rule, were definitely stricken from the research program if once found to be lacking in pharmacological interest.
Nevertheless,
in the spring of 1943, I repeated the synthesis of LSD-25. As in the first synthesis,
this involved the production of only a few centigrams of the compound.
In the
final step of the synthesis, during the purification and crystallization of lysergic acid
diethylamide in the form of a tartrate (tartaric acid salt), I was interrupted in my work by unusual
sensations. The following description of this incident comes from the report that I sent at the time to Professor Stoll:
Last Friday, April 16, 1943,1 was forced to interrupt my work in the laboratory in the
middle
of the afternoon and proceed home, being affected by a remarkable restlessness, combined
with a slight dizziness. At home I lay down and sank into a not unpleasant intoxicated like condition, characterized by an extremely
stimulated imagination. In a dreamlike state, with eyes closed (I found the daylight to be unpleasantly glaring), I perceived
an uninterrupted stream of fantastic pictures, extraordinary shapes with intense,
kaleidoscopic play of colors. After some two hours this condition faded away.
This was, altogether,
a remarkable experience— both in its sudden onset and its extraordinary course.
It seemed to have resulted from some external toxic influence; I surmised a connection
with the substance I had been working with at the time, lysergic acid diethylamide tartrate. But this led to another question: how had I managed to absorb this material? Because of the known
toxicity of ergot substances, I always maintained meticulously neat work habits. Possibly
a bit of the LSD solution had contacted my fingertips during crystallization,
and a trace of the substance was absorbed through the skin. If LSD-25 had indeed been the cause of this bizarre experience, then it must be a substance of
extraordinary potency. There seemed to be only one way of getting to the bottom of this. I decided on a self-experiment.
Exercising extreme
caution, I began the planned series of experiments with the smallest quantity that could be expected to produce some effect, considering the activity of the ergot alkaloids known at the time: namely, 0.25 mg
(mg = milligram = one thousandth of a gram) of lysergic acid diethylamide tartrate. Quoted below is the entry for this experiment in my laboratory journal of April
19, 1943. The first section contains notes on the production of the tartrate (tartaric
acid salt) of LSD.
Self-Experiments
4/19/43 16:20: 0.5 cc of Vi promil aqueous solution of diethylamide tartrate orally = 0.25 mg tartrate. Taken diluted with about 10 cc water. Tasteless.
17:00: Beginning dizziness, feeling of anxiety, visual distortions, symptoms of
paralysis, desire to laugh.
Supplement of 4/21: Home by bicycle. From 18:00-ca. 20:00 most severe crisis. (See special
report.)
Here the notes in my laboratory journal cease. I was able to write the last words
only with great effort. By now it was already clear to me that LSD had been the cause of the remarkable experience of the previous Friday, for the altered perceptions were of the same
type as before, only much more intense. I had to struggle to speak intelligibly. I asked my laboratory assistant, who was informed
of the self-experiment, to escort me home. We went by bicycle, no automobile being
available because of wartime restrictions on their use. On the way home, my condition
began to assume threatening forms. Everything in my field of vision wavered and
was distorted as if seen in a curved mirror. I also had the sensation of being
unable to move from the spot. Nevertheless, my assistant later told me that we had traveled very rapidly. Finally, we arrived at home
safe and sound, and I was just barely capable of asking my companion to summon
our family doctor and request milk from the neighbors.
In spite of my delirious, bewildered condition, I had brief periods of clear and effective
thinking—and chose milk as a nonspecific antidote for poisoning.
The dizziness and sensation of fainting became so strong at times that I could no
longer hold myself erect, and had to lie down on a sofa. My surroundings had now transformed
themselves in more terrifying ways. Everything in the room spun around, and the familiar
objects and pieces of furniture assumed grotesque, threatening forms. They were in continuous motion, animated, as if
driven by an inner restlessness. The lady next door, whom I scarcely recognized, brought me milk—in the course of the evening I drank more than two liters. She
was no longer Mrs. R., but rather a malevolent, insidious witch with a colored mask.
Even worse than these demonic transformations of the outer world, were the alterations that I perceived in myself, in my inner being. Every exertion of my will, every attempt
to put an end to the disintegration of the outer world and the dissolution of
my ego, seemed to be wasted effort. A demon had invaded me, had taken possession of my body, mind, and soul. I jumped up and
screamed, trying to free myself from him, but then sank down again and lay helpless on the sofa.
The substance, with which I had wanted to experiment, had vanquished me. It was the demon that scornfully
triumphed over my will. I was seized by the dreadful fear of going insane.
I was taken to another world, another place, another time. My body seemed to be without
sensation, lifeless, strange. Was I dying? Was this the transition? At times I believed myself
to be outside my body, and then perceived clearly, as an outside observer, the
complete tragedy of my situation. I had not even taken leave of my family (my wife,
with our three children had traveled that day to visit her parents, in Lucerne).
Would they ever understand that I had not experimented thoughtlessly, irresponsibly, but rather with the utmost caution, and that such a result was in no way foreseeable?
My fear and despair intensified, not only because a young family should
lose its father, but also because I dreaded leaving my chemistry research work, which meant
so much to me, unfinished in the midst of fruitful, promising development.
Another reflection took shape, an idea full of bitter irony: if I was now forced to leave this
world prematurely, it was because of this lysergic acid diethylamide that I myself
had brought forth into the world.
By the time the doctor arrived, the climax of my despondent condition had
already passed. My
laboratory assistant informed him about my self-experiment, as I myself was not yet able to formulate
a coherent sentence. He shook his head in perplexity, after my attempts to describe the mortal danger that threatened my body.
He could detect no abnormal symptoms other than extremely dilated pupils. Pulse,
blood pressure, breathing were all normal. He saw no reason to prescribe any medication.
Instead he conveyed me to my bed and stood watch over me. Slowly I came back from a weird, unfamiliar world to reassuring everyday reality. The horror softened and gave way to a feeling of good fortune and gratitude, the more
normal perceptions and thoughts returned, and I became more confident that the danger
of insanity was conclusively past.
Now, little by little I could begin to enjoy the unprecedented colors and plays
of shapes that persisted behind my closed eyes. Kaleidoscopic, fantastic images surged
in on me, alternating, variegated, opening and then closing themselves in circles and
spirals, exploding in colored fountains, rearranging and hybridizing themselves
in constant flux. It was particularly remarkable how every acoustic perception,
such as the sound of a doorhandle or a passing automobile, became transformed into
optical perceptions. Every sound generated a vividly changing image, with its own consistent form and color.
Late in the evening my wife returned from Lucerne. Someone had informed her by telephone
that I was suffering a mysterious breakdown. She had returned home at
once, leaving the children behind with her parents. By now, I had recovered myself sufficiently
to tell her what had happened.
Exhausted,
I then slept, to awake next morning refreshed, with a clear head, though still somewhat tired physically. A sensation
of well-being and renewed life flowed through me. Breakfast tasted delicious and gave me extraordinary pleasure. When I later walked out
into the garden, in which the sun shone now after a spring rain, everything glistened
and sparkled in a fresh light. The world was as if newly created. All my senses vibrated in a condition of highest sensitivity, which persisted for the entire day.
This self-experiment
showed that LSD-25 behaved as a psychoactive substance with extraordinary properties and potency.
There was to my knowledge no other known substance that evoked such profound psychic
effects in such extremely low doses that caused such dramatic changes in human consciousness and our experience of the inner and outer world.
What seemed
even more significant was that I could remember the experience of LSD inebriation in every detail. This could only mean that the conscious recording function was not interrupted,
even in the climax of the LSD experience, despite the profound breakdown of the normal
worldview. For the entire duration of the experiment, I had even been aware of participating in an experiment, but despite this recognition of my condition, I could not, with every exertion
of my will, shake off the LSD world. Everything was experienced as completely real, as alarming
reality; alarming, because the picture of the other, familiar everyday reality was still fully preserved in the memory for comparison.
Another surprising aspect of LSD was its ability to produce such a far-reaching,
powerful state of inebriation without leaving a hangover. Quite the contrary, on the day after the LSD experiment I felt myself to be as already described, in excellent
physical and mental condition.
I was aware that LSD, a new active compound with such properties, would have to be of use in
pharmacology, in neurology, and especially in psychiatry, and that it
would attract the interest of concerned specialists. But at that time I had no inkling that
the new substance would also come to be used beyond medical science, as an intoxicant in the drug scene.
Since my self-experiment had revealed LSD in its terrifying, demonic aspect,
the last thing I could have expected was that this substance could ever find application as anything approaching a pleasure
drug. I failed, moreover, to recognize the meaningful connection between LSD inebriation and spontaneous visionary experience until much later, after further experiments, which were carried out with far lower doses and under different conditions.
Next day I wrote to Professor Stoll the above-mentioned report about my extraordinary experience
with LSD-25 and sent a copy to the director of the pharmacological department, Professor Rothlin.
As expected, the first reaction was incredulous astonishment. Instantly a telephone
call came from the management; Professor Stoll asked: "Are you certain you made no mistake in the weighing?
Is the stated dose really correct?" Professor Rothlin also called, asking the same question. I was certain of this point, for I had executed
the weighing and dosage with my own hands. Yet their doubts were justified to
some extent, for until then no known substance had displayed even the slightest
psychic" effect in fraction-of-a-milligram Hoses. An active compound of such potency
seemed almost unbelievable.
Professor Rothlin himself and two of his colleagues were the first to repeat my experiment,
with only one-third of the dose I had utilized. But even at that level, the effects
were still extremely impressive, and quite fantastic. All doubts about the statements in my report
were eliminated.
Note: LSD, My Problem
Child appears in this library under the "Fair Use" rulings regarding the 1976 Copyright Act for NON-profit academic,
research, and general information purposes. Readers requiring a permanent copy of LSD, My Problem Child for their
library are advised to purchase it from their book supplier
Hofmann’s
own words:
The entire work is on line
at http://www.psychedelic-library.org/child.htm
Albert Hormann, LSD, My Problem Child (the European earlier addition was titled LSD, My Problem Solving
Child—Mein Sorgenkind), translated by Jonathan Ott, McGraw-Hill Book Company, New York, 1980, pp 14-21.
By Albert Hofmann
A Short Autobiography
About me: Albert Hofmann was born
in Baden, Switzerland in 1906.
He graduated from the University of Zürich with a degree in chemistry in 1929 and went to work for Sandoz Pharmaceutical in Basel, Switzerland. With
the laboratory goal of working towards isolation of the active principles of known medicinal plants, Hofmann worked with Mediterranean
squill (Scilla maritima) for several years, before moving on to the study of Claviceps purpurea (ergot) and ergot alkaloids.
Over the next few years, he worked his way through the lysergic acid derivatives, eventually synthesizing LSD-25 for the first
time in 1938. After minimal testing, LSD-25 was set aside as he continued with other derivatives. Four years later, on April 16, 1943, he re-synthesized LSD-25 because he felt he might have missed something the first time around. That day, he
became the first human to experience the effects of LSD after accidentally ingesting a minute amount. Three days later, on
April 19, 1943, he decided to verify his results by intentionally ingesting 250 ug of LSD. This day has become known
as "Bicycle Day" as Hofmann experienced an incredible bicycle ride on his way home from the lab. In addition to his discovery
of LSD, he was also the first to synthesize psilocybin (the active constituent of 'magic mushrooms') in 1958. Albert Hofmann,
known as the 'father of LSD', continued to work at Sandoz until 1971 when he retired as Director of Research for the Department
of Natural Products. Since that time he has continued to write, lecture, and play a leading role as an elder in the psychedelic
community. 8% of the population has tried LSD at least once and it has had a significantly positive impact on millions of
lives. Discovery of the Psychic Effects of LSD. The solution of the ergotoxine
problem had led to fruitful results, described here only briefly, and had opened up further avenues of research. And yet I
could not forget the relatively uninteresting LSD-25. A peculiar presentiment—the feeling that this substance could
possess properties other than those established in the first investigations—induced me, five years after the first synthesis,
to produce LSD-25 once again so that a sample could be given to the pharmacological department for further tests. This was
quite unusual; experimental substances, as a rule, were definitely stricken from the research program if once found to be
lacking in pharmacological interest. Nevertheless, in the spring of 1943, I repeated the synthesis of LSD-25. As in the first
synthesis, this involved the production of only a few centigrams of the compound. In the final step of the synthesis, during
the purification and crystallization of lysergic acid diethylamide in the form of a tartrate (tartaric acid salt), I was interrupted
in my work by unusual sensations. The following description of this incident comes from the report that I sent at the time
to Professor Stoll: Last Friday, April
16,1943, I was forced to interrupt my work in the laboratory
in the middle of the afternoon and proceed home, being affected by a remarkable restlessness, combined with a slight dizziness.
At home I lay down and sank into a not unpleasant intoxicated-like condition, characterized by an extremely stimulated imagination.
In a dreamlike state, with eyes closed (I found the daylight to be unpleasantly glaring), I perceived an uninterrupted stream
of fantastic pictures, extraordinary shapes with intense, kaleidoscopic play of colors. After some two hours this condition
faded away. This was, altogether, a remarkable experience—both in its sudden onset and its extraordinary course. It
seemed to have resulted from some external toxic influence; I surmised a connection with the substance I had been working
with at the time, lysergic acid diethylamide tartrate. But this led to another question: how had I managed to absorb this
material? Because of the known toxicity of ergot substances, I always maintained meticulously neat work habits. Possibly a
bit of the LSD solution had contacted my fingertips during crystallization, and a trace of the substance was absorbed through
the skin. If LSD-25 had indeed been the cause of this bizarre experience, then it must be a substance of extraordinary potency.
There seemed to be only one way of getting to the bottom of this. I decided on a self-experiment. Exercising extreme caution,
I began the planned series of experiments with the smallest quantity that could be expected to produce some effect, considering
the activity of the ergot alkaloids known at the time: namely, 0.25 mg (mg = milligram = one thousandth of a gram) of lysergic
acid diethylamide tartrate. Quoted below is the entry for this experiment in my laboratory journal of April 19, 1943. Self-Experiments 4/19/43 16:20: 0.5 cc of 1/2 promil aqueous solution of diethylamide tartrate orally = 0.25 mg tartrate. Taken
diluted with about 10 cc water. Tasteless. 17:00: Beginning dizziness, feeling of anxiety, visual distortions, symptoms of paralysis, desire to laugh.
Supplement of 4/21: Home by bicycle. From 18:00- ca.20:00 most severe crisis. (See special report.) Here the notes in my laboratory
journal cease. I was able to write the last words only with great effort. By now it was already clear to me that LSD had been
the cause of the remarkable experience of the previous Friday, for the altered perceptions were of the same type as before,
only much more intense. I had to struggle to speak intelligibly. I asked my laboratory assistant, who was informed of the
self-experiment, to escort me home. We went by bicycle, no automobile being available because of wartime restrictions on their
use. On the way home, my condition began to assume threatening forms. Everything in my field of vision wavered and was distorted
as if seen in a curved mirror. I also had the sensation of being unable to move from the spot. Nevertheless, my assistant
later told me that we had traveled very rapidly. Finally, we arrived at home safe and sound, and I was just barely capable
of asking my companion to summon our family doctor and request milk from the neighbors. In spite of my delirious, bewildered
condition, I had brief periods of clear and effective thinking—and chose milk as a nonspecific antidote for poisoning.
The dizziness and sensation of fainting became so strong at times that I could no longer hold myself erect, and had to lie
down on a sofa. My surroundings had now transformed themselves in more terrifying ways. Everything in the room spun around,
and the familiar objects and pieces of furniture assumed grotesque, threatening forms. They were in continuous motion, animated,
as if driven by an inner restlessness. The lady next door, whom I scarcely recognized, brought me milk—in the course
of the evening I drank more than two liters. She was no longer Mrs. R., but rather a malevolent, insidious witch with a colored
mask. Even worse than these demonic transformations of the outer world, were the alterations that I perceived in myself, in
my inner being. Every exertion of my will, every attempt to put an end to the disintegration of the outer world and the dissolution
of my ego, seemed to be wasted effort. A demon had invaded me, had taken possession of my body, mind, and soul. I jumped up
and screamed, trying to free myself from him, but then sank down again and lay helpless on the sofa. The substance, with which
I had wanted to experiment, had vanquished me. It was the demon that scornfully triumphed over my will. I was seized by the
dreadful fear of going insane. I was taken to another world, another place, another time. My body seemed to be without sensation,
lifeless, strange. Was I dying? Was this the transition? At times I believed myself to be outside my body, and then perceived
clearly, as an outside observer, the complete tragedy of my situation. I had not even taken leave of my family (my wife, with
our three children had traveled that day to visit her parents, in Lucerne). Would they ever understand
that I had not experimented thoughtlessly, irresponsibly, but rather with the utmost caution, an-d that such a result was
in no way foreseeable? My fear and despair intensified, not only because a young family should lose its father, but also because
I dreaded leaving my chemical research work, which meant so much to me, unfinished in the midst of fruitful, promising development.
Another reflection took shape, an idea full of bitter irony: if I was now forced to leave this world prematurely, it was because
of this Iysergic acid diethylamide that I myself had brought forth into the world. By the time the doctor arrived, the climax
of my despondent condition had already passed. My laboratory assistant informed him about my self-experiment, as I myself
was not yet able to formulate a coherent sentence. He shook his head in perplexity, after my attempts to describe the mortal
danger that threatened my body. He could detect no abnormal symptoms other than extremely dilated pupils. Pulse, blood pressure,
breathing were all normal. He saw no reason to prescribe any medication. Instead he conveyed me to my bed and stood watch
over me. Slowly I came back from a weird, unfamiliar world to reassuring everyday reality. The horror softened and gave way
to a feeling of good fortune and gratitude, the more normal perceptions and thoughts returned, and I became more confident
that the danger of insanity was conclusively past. Now, little by little I could begin to enjoy the unprecedented colors and
plays of shapes that persisted behind my closed eyes. Kaleidoscopic, fantastic images surged in on me, alternating, variegated,
opening and then closing themselves in circles and spirals, exploding in colored fountains, rearranging and hybridizing themselves
in constant flux. It was particularly remarkable how every acoustic perception, such as the sound of a door handle or a passing
automobile, became transformed into optical perceptions. Every sound generated a vividly changing image, with its own consistent
form and color. Late in the evening my wife returned from Lucerne. Someone had informed her by telephone that I was suffering a mysterious breakdown. She had returned home
at once, leaving the children behind with her parents. By now, I had recovered myself sufficiently to tell her what had happened.
Exhausted, I then slept, to awake next morning refreshed, with a clear head, though still somewhat tired physically. A sensation
of well-being and renewed life flowed through me. Breakfast tasted delicious and gave me extraordinary pleasure. When I later
walked out into the garden, in which the sun shone now after a spring rain, everything glistened and sparkled in a fresh light.
The world was as if newly created. All my senses vibrated in a condition of highest sensitivity, which persisted for the entire
day. This self-experiment showed that LSD-25 behaved as a psychoactive substance with extraordinary properties and potency.
There was to my knowledge no other known substance that evoked such profound psychic effects in such extremely low doses,
that caused such dramatic changes in human consciousness and our experience of the inner and outer world. What seemed even
more significant was that I could remember the experience of LSD inebriation in every detail. This could only mean that the
conscious recording function was not interrupted, even in the climax of the LSD experience, despite the profound breakdown
of the normal world view. For the entire duration of the experiment, I had even been aware of participating in an experiment,
but despite this recognition of my condition, I could not, with every exertion of my will, shake off the LSD world. Everything
was experienced as completely real, as alarming reality; alarming, because the picture of the other, familiar everyday reality
was still fully preserved in the memory for comparison. Another surprising aspect of LSD was its ability to produce such a
far-reaching, powerful state of inebriation without leaving a hangover. Quite the contrary, on the day after the LSD experiment
I felt myself to be, as already described, in excellent physical and mental condition. I was aware that LSD, a new active
compound with such properties, would have to be of use in pharmacology, in neurology, and especially in psychiatry, and that
it would attract the interest of concerned specialists. But at that time I had no inkling that the new substance would also
come to be used beyond medical science, as an inebriant in the drug scene. Since my self-experiment had revealed LSD in its
terrifying, demonic aspect, the last thing I could have expected was that this substance could ever find application as anything
approaching a pleasure drug. I failed, moreover, to recognize the meaningful connection between LSD inebriation and spontaneous
visionary experience until much later, after further experiments, which were carried out with far lower doses and under different
conditions. The next day I wrote to Professor Stoll the above-mentioned report about my extraordinary experience with LSD-25
and sent a copy to the director of the pharmacological department, Professor Rothlin. As expected, the first reaction was
incredulous astonishment. Instantly a telephone call came from the management; Professor Stoll asked: "Are you certain you
made no mistake in the weighing? Is the stated dose really correct?" Professor Rothlin also called, asking the same question.
I was certain of this point, for I had executed the weighing and dosage with my own hands. Yet their doubts were justified
to some extent, for until then no known substance had displayed even the slightest psychic effect in fraction-of-a-milligram
doses. An active compound of such potency seemed almost unbelievable. Professor Rothlin himself and two of his colleagues
were the first to repeat my experiment, with only one-third of the dose I had utilized. But even at that level, the effects
were still extremely impressive, and quite fantastic. All doubts about the statements in my report were eliminated. http://www.psychedelic-library.org/child.htm
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