What to Expect

An honest phase-by-phase walkthrough of a macrodose experience, timelines, sensations, and what's normal vs. when to seek help.

What to Expect

No two psychedelic experiences are identical, but most macrodose journeys follow a recognizable arc. Knowing the landscape doesn’t eliminate surprise — and it shouldn’t — but it can reduce anxiety when strange or intense sensations arise. What follows is an honest, unsensationalized walkthrough.

Timelines at a Glance

SubstanceOnsetPeakTotal DurationAfterglow
Psilocybin (mushrooms)20–60 min2–3 hours4–6 hours1–3 days
LSD30–90 min3–5 hours8–12 hours1–3 days

These are typical ranges. Individual metabolism, stomach contents, and substance potency cause significant variation. Mushroom potency varies enormously between species, batches, and even individual mushrooms. Start low.

Phase by Phase

Onset (20–90 minutes)

The first signals are usually physical:

  • A rising sense of energy or restlessness
  • Yawning (common with psilocybin, even if not tired)
  • Mild nausea or stomach gurgling
  • Body temperature fluctuations — chills or warmth
  • A subtle sense that “something is different”

What to do: Settle in. Breathe slowly. Nausea often passes. Lying down with eyes closed can help. Some people find ginger tea helpful.

Come-Up (45 minutes – 2 hours)

The effects intensify noticeably:

  • Visual changes: colors saturate, surfaces may breathe or ripple, patterns emerge in textures
  • Auditory changes: music becomes richer, sounds may layer or echo
  • Physical sensations: body may feel heavy, light, or strangely proportioned
  • Emotional waves: rising excitement, apprehension, or both alternating
  • Thought patterns: increasing speed, metaphorical thinking, associative leaps

What’s normal: Wanting it to slow down or speed up. Wondering if you took too much or too little. Laughing or crying for no clear reason.

Grounding techniques: Breathe with the experience rather than against it. Change your posture. Move to a different room. Put on a different song. Remind yourself: “I chose this. It will pass.”

Peak (2–4 hours in)

The most intense phase:

  • Visuals: Geometric patterns, fractals, shifting colors, closed-eye imagery
  • Ego softening: Boundaries between self and world may blur. This can feel liberating or frightening.
  • Emotional intensity: Joy, awe, grief, terror, love — often in succession, sometimes simultaneously
  • Time distortion: Minutes may feel like hours; hours may compress
  • Revelatory experiences: Insights about relationships, life direction, or existential matters feel immediate and profound
  • Somatic release: Stored tension may release as shaking, crying, or vocalization

What’s normal: Feeling like you’re dying or being reborn (metaphorically — this is classic ego dissolution territory). Encountering difficult memories. Laughing and crying in the same breath.

What’s concerning: If you genuinely cannot tell whether you’re physically safe, if you have thoughts of harming yourself or others, or if physical symptoms (chest pain, severe shortness of breath) suggest something other than psychedelic effects. These are rare but real.

Plateau (3–5 hours in)

The intensity levels off. You may feel:

  • Deep calm or exhaustion
  • A sense of clarity or perspective
  • Continued visual and sensory enhancement, but more manageable
  • Conversational ability returns, though you may prefer silence
  • Hunger or thirst reappears

This is often when people want to walk outside, look at the sky, or eat fruit.

Comedown (4–8 hours in)

The effects gradually recede:

  • Visuals diminish
  • Mental clarity returns, though you may still feel “raw” or open
  • Physical tiredness sets in
  • You may feel emotionally tender or unusually connected to people
  • Sleep may be difficult for several more hours (especially with LSD)

What to do: Eat lightly. Journal. Talk with your sitter if you want. Don’t make major decisions tonight. Be gentle with yourself.

Afterglow (1–3 days after)

A lingering state that many describe as one of the most valuable aspects:

  • Elevated mood and openness
  • Enhanced sensory appreciation
  • Increased emotional sensitivity (can be positive or overwhelming)
  • Sense of mental clarity or perspective shift
  • Physical fatigue

Caution: The afterglow can make you feel “cured” of depression or other conditions. This may be genuine and lasting, or it may fade. Avoid making irreversible decisions (quitting jobs, ending relationships) during the afterglow. Wait a week.

How Microdose Days Differ

A proper microdose should be subtle to imperceptible by design. You may notice:

  • Slightly elevated mood or energy
  • Mildly enhanced sensory appreciation
  • Subtle cognitive flexibility
  • Or… nothing at all

If you feel distinctly altered, anxious, or visually affected, your dose is too high. The goal is not a muted trip; it’s a functional day with a barely perceptible shift.

Common Physical Sensations

SensationCommon?Notes
NauseaVery common (psilocybin)Often passes within first hour. Ginger helps.
YawningVery common (psilocybin)Normal, not a sign of fatigue.
Body load / heavinessCommonCan feel like gravity increased.
Temperature swingsCommonLayers, blankets, fresh air help.
Pupil dilationUniversalLasts full duration.
Jaw tensionCommon (LSD)Magnesium may help.
Increased heart rateCommonUsually mild. Concerning if severe or accompanied by chest pain.
Perception of heartbeatCommonCan be unsettling. Usually benign.

Common Psychological Territory

  • Awe and wonder: The experience of encountering beauty or mystery beyond ordinary perception
  • Anxiety and fear: Often arises from resistance to the experience
  • Ego softening or dissolution: A loosening of the usual sense of self. Can feel like dying, merging, or transcending
  • Emotional release: Crying, laughing, vocalizing — often cathartic
  • Thought loops: Getting stuck on a repetitive idea or question. Usually passes with a change of stimulus
  • Timelessness: Losing track of time or experiencing it non-linearly
  • Synchronicity or meaning-making: Perceiving connections and significance everywhere. Some are insightful; some are paranoia in costume

When to Seek Help

During the experience:

  • Chest pain, severe shortness of breath, or fainting
  • Repeated vomiting with signs of dehydration
  • Seizure (rare, but possible with certain contraindications — especially lithium)
  • Active suicidal ideation with intent or plan
  • Extreme agitation or violent behavior

In these cases, seek emergency medical help. Be honest with responders about what was taken.

After the experience:

  • Symptoms of psychosis (hallucinations, delusions, disorganized thinking) persisting more than 48 hours
  • Severe depression or suicidal ideation emerging afterward
  • Flashbacks or intrusive imagery that significantly impair functioning
  • Persistent visual disturbances (HPPD — rare but documented)

Resources:

  • Fireside Project: 62-FIRESIDE (peer support during and after)
  • Crisis Text Line: Text HOME to 741741
  • 988 Suicide & Crisis Lifeline (US): Call or text 988