GHB Effects

A state of insufficient bodily hydration manifesting as persistent thirst, dry mouth, and physical discomfort, often caused by increased sweating, urination, or simply forgetting to drink water during substance use.

A sensation of spinning, swaying, or lightheadedness that impairs balance and spatial orientation, often accompanied by nausea and difficulty standing or walking steadily.

A painful sensation of pressure, throbbing, or aching in the head that can range from a dull background discomfort to a debilitating pounding that dominates awareness. Substance-induced headaches may occur during the acute effects, during the comedown, or as a rebound symptom hours to days after use.

A marked enhancement of sexual desire, arousal, and sensitivity to erotic stimuli that can range from a gentle heightening of romantic interest to an overwhelming, all-consuming preoccupation with sexual thoughts and physical intimacy. This effect often co-occurs with tactile enhancement and empathy, creating a distinctly sensual state of consciousness.

Increased salivation (hypersalivation or sialorrhea) is the excessive production of saliva beyond what can be comfortably swallowed, commonly occurring with psychedelic tryptamines and certain antipsychotics as part of a broader parasympathetic activation pattern.

A persistent inability to fall asleep or maintain sleep despite physical tiredness, often characterized by a racing mind, heightened alertness, and a frustrating disconnect between bodily fatigue and mental wakefulness. This effect can persist for hours beyond the primary duration of a substance, significantly extending the total experience timeline.

A distinct decrease in the ability to control one's physical body with precision, balance, and coordination, ranging from minor clumsiness to complete inability to walk.

Muscle cramps are sudden, involuntary, and often painful contractions of muscles that occur as a side effect of certain psychoactive substances, particularly stimulating psychedelics and stimulants.

The experience of muscles throughout the body losing their rigidity and tension, becoming noticeably relaxed, loose, and comfortable.

An uncomfortable sensation of queasiness and stomach discomfort that may or may not lead to vomiting, often occurring during the onset phase of many substances.

Orgasm suppression (anorgasmia) is the difficulty or complete inability to achieve orgasm despite adequate sexual stimulation, commonly caused by opioids, dissociatives, SSRIs, and stimulants through mechanisms including tactile suppression, serotonergic excess, and altered CNS signaling.

An intensely pleasurable bodily sensation that can manifest as waves of warmth, tingling electricity, or a full-body orgasmic glow radiating outward from the core. This effect is often described as one of the most rewarding physical sensations available through psychoactive substances and is a primary driver of the recreational appeal of many substance classes.

A visible narrowing of the pupil diameter (miosis) that reduces the size of the dark center of the eye to a small pinpoint. This effect is one of the most reliable physical indicators of opioid intoxication and is often the first sign noticed by medical professionals and observers when assessing someone under the influence of opioids or certain other substance classes.

A visible enlargement of the pupil diameter (mydriasis) that can range from subtle widening to dramatic saucer-like expansion where the dark pupil dominates the iris. This effect is one of the most recognizable signs of psychedelic and stimulant intoxication and directly contributes to light sensitivity, enhanced color perception, and the characteristic "wide-eyed" appearance.

A dangerous slowing and shallowing of breathing that can progress from barely noticeable reductions in respiratory rate to life-threatening cessation of breathing. This is the primary mechanism of death in opioid overdoses and represents one of the most critical safety concerns across all of psychopharmacology.

A state of deep physical and mental calming that manifests as a progressive desire to remain still, lie down, and eventually drift toward sleep. Sedation ranges from a gentle drowsy relaxation to a heavy, irresistible pull into unconsciousness where maintaining wakefulness becomes a losing battle against the body's insistence on shutdown.

Uncontrolled brain electrical activity causing convulsions and loss of consciousness -- a life-threatening medical emergency requiring immediate help.

Spatial disorientation is the inability to accurately perceive one's position or orientation within the surrounding environment, sometimes causing the world or one's own body to feel rotated, flipped, or otherwise misaligned with physical reality.

A state of heightened physical and mental energy characterized by increased wakefulness, elevated motivation, and a subjective sense of vigor that pervades both body and mind. Users often report feeling electrically alive, with a buzzing readiness to move, talk, and engage that can range from a pleasant caffeine-like lift to an overwhelming, jittery compulsion to act.

Stomach cramps are sharp, intermittent pains in the abdominal region that can occur when psychoactive substances irritate the gastrointestinal lining or alter the normal patterns of smooth muscle contraction in the digestive tract.

Phantom perception of ringing, buzzing, or hissing in the ears without external sound source, potentially caused or worsened by certain substances.

Involuntary rhythmic shaking of the hands, limbs, or body, ranging from fine tremor to gross shaking, common with stimulants and during withdrawal states.

Vasodilation is the relaxation and widening of blood vessels, leading to increased blood flow, reduced blood pressure, and visible effects such as flushing and bloodshot eyes, most commonly associated with cannabinoids, nitrites, and alcohol.

A visual phenomenon in which a faint, ghostly imprint of a previously viewed image persists in the visual field after the original stimulus has been removed or one has looked away. These lingering visual echoes are significantly more persistent, vivid, and detailed than normal physiological afterimages, often retaining color and form for several seconds or longer and overlaying themselves onto whatever one currently views.

A visual effect in which the perceived saturation and vibrancy of colors is diminished, causing the environment to appear washed out, grey, and progressively monochrome — the functional opposite of color enhancement.

Alterations in how the distance of objects within the visual field is perceived, causing layers of scenery to appear exaggerated, rearranged, flattened, or warped in spatial depth.

Distortion of perceived depth, distance, and size of real objects, making things appear closer, further, larger, or smaller than they actually are.

The visual field fractures into distinct, cleanly cut sections that slowly drift apart from their original positions before resetting, as if reality has been sliced by an invisible blade into geometric pieces that briefly separate and rearrange.

Vision becomes blurred, indistinct, and out of focus, as though looking through a smudged lens. Fine details degrade and edges lose their definition and sharpness.

A complete or partial inability to form new memories or recall existing ones during and after substance use, ranging from minor gaps in recollection to total blackouts encompassing hours of experience.

Analysis suppression is a cognitive impairment in which the capacity for logical reasoning, critical evaluation, and systematic problem-solving is significantly diminished — leaving the person unable to effectively break down, examine, or draw conclusions about even relatively simple ideas or situations.

Intense feelings of apprehension, worry, and dread that can range from a subtle background unease to overwhelming panic attacks with a sense of impending doom, often amplified by the substance's intensification of one's existing mental state.

A partial to complete suppression of anxiety and general unease, producing a calm, relaxed mental state free from worry. This can range from subtle tension relief to a profound sense of inner peace and emotional security.

A cognitive and emotional state of intense well-being, elation, happiness, and joy that manifests as a profound mental contentment and positive outlook. This ranges from gentle feelings of optimism and warmth to overwhelming bliss that pervades all thoughts and perceptions.

An overwhelming, difficult-to-resist urge to continuously take more of a substance in order to maintain or intensify its effects, often overriding rational judgment and self-control.

An increase in the ability to imagine new ideas, overcome creative blocks, think about existing concepts in novel ways, and produce artistic or intellectual work with greater fluency and inspiration.

Delirium is a serious and potentially dangerous state of acute mental confusion involving disorientation, incoherent thought, impaired attention, and frequently vivid hallucinations that the person cannot distinguish from reality. It represents one of the most medically concerning cognitive effects of substance use.

A persistent state of low mood, emotional numbness, hopelessness, and diminished interest or pleasure in activities, often occurring during comedowns, withdrawal, or as a prolonged after-effect of substance use.

A marked reduction in social inhibitions, self-consciousness, and behavioral restraint that manifests as increased openness, talkativeness, and willingness to engage in activities one would normally avoid. Users often describe feeling as though an invisible social barrier has been lifted, allowing thoughts and impulses to flow directly into action without the usual filtering process.

Enhanced dream vividness, complexity, and recall, often occurring as REM rebound after discontinuing REM-suppressing substances.

A state of intensified compassion and emotional openness in which one feels deeply connected to others, motivated by genuine warmth and an enhanced capacity for understanding other people's feelings and perspectives.

A heightened capacity to become fully absorbed and engrossed in external media such as music, films, video games, and art, with an amplified suspension of disbelief and a deepened emotional connection to the content being experienced.

An enhanced state of self-reflective awareness in which one feels drawn to examine their own thoughts, emotions, behaviors, and life patterns with unusual depth, clarity, and emotional honesty, often yielding insights that feel therapeutically significant.

A dose-dependent inhibition of one's ability to access and utilize short-term and long-term memory, ranging from mild forgetfulness to a profound inability to recall personal identity, biographical information, or the context of the current experience.

A heightened sense of drive, ambition, and willingness to accomplish tasks, making productive effort feel rewarding and almost effortless.

Motivation suppression is a state of diminished drive and willingness to engage in goal-directed behavior — from everyday tasks like cleaning and working to activities that would normally be experienced as rewarding or enjoyable — sometimes described as a profound and enveloping 'why bother?' feeling.

A profound enhancement of one's enjoyment and emotional connection to music, making songs feel deeply meaningful and revealing hidden layers of complexity.

Psychosis is a serious psychiatric state involving a fundamental break from consensus reality — characterized by firmly held false beliefs (delusions), perception of things that are not there (hallucinations), disorganized thought and speech, and a loss of the ability to distinguish internal mental events from external reality.

A renewed sense of physical vitality, mental freshness, and emotional restoration that can emerge during or after a substance experience. The individual feels as though accumulated fatigue, stress, and mental fog have been cleared away, leaving behind a state of refreshment and renewed energy that is often compared to waking from deep, restorative sleep or returning from a revitalizing vacation.

A progressive onset of drowsiness, heaviness, and the desire to sleep that pulls the individual toward rest with increasing insistence. The eyelids feel weighted, the body sinks into whatever surface supports it, cognitive activity winds down into a pleasant fog, and the transition from waking consciousness toward sleep begins to feel not only appealing but inevitable.

Heightened receptivity to external suggestions, ideas, and influence, commonly experienced during psychedelic and hypnotic states.

The experience of thoughts occurring at a dramatically increased rate, as if the mind has been shifted into a higher gear. Ideas, associations, and internal dialogue cascade rapidly, often outpacing the ability to articulate or fully process each one, producing a subjective sense of heightened mental velocity.

The experience of thoughts occurring at a markedly reduced pace, as if the mind has been placed into slow motion. Internal dialogue becomes sparse and sluggish, with each idea taking longer to form and process, producing a sense of mental heaviness or cognitive inertia.

An increased ability to stay awake and alert without the desire to sleep. Distinct from stimulation in that it does not elevate energy above a naturally rested baseline.

Auditory distortion is the experience of sounds becoming warped, pitch-shifted, flanged, or otherwise altered in their perceived qualities without any change to the actual sound source. Familiar sounds may seem alien, stretched in time, or layered with unusual resonances, creating a surreal and sometimes unsettling soundscape that departs significantly from sober auditory perception.

Auditory misinterpretation is the brief, spontaneous misidentification of real sounds as entirely different sounds — ambient noise interpreted as voices, mechanical hums perceived as music, or random environmental sounds heard as words or familiar patterns.

Olfactory suppression (hyposmia or anosmia) is the diminishment or complete loss of smell perception, rendering previously noticeable odors faint, indistinct, or entirely undetectable.