LSD
C20H25N3O 323.48 LSD
lysergic acid, diethylamide,
a potent hallucinogen
Taken from "My Problem Child" by Albert Hofmann
In 1938, I produced the twenty-fifth substance in
a series of lysergic acid derivatives: lysergic
acid diethylamide, abbreviated LSD-25
(Lyserg-saure-diathylamid) for laboratory usage.
For the next five years, nothing more was heard
of the substance LSD-25.
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.
"Fuck World War Two, I Am An Elephant"
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.