Pedplot

EQ plotter

No human study has measured EQ's half-life; the plot uses an estimate of about 14 days.

Half-life estimate, not bloodwork or dosing advice. Disclaimer.

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The prefilled numbers are an example input to draw the curve, not a dose; Pedplot does not suggest one. To step a dose up, add another row of the same compound with a later start day.

Peaks, troughs, and half-life
Not a blood level. The chart shows the estimated milligrams of the drug still in the body, so it will not match a lab result in ng/dL. How the model works. Washout continues after the last dose. Mixed IU and mg protocols are not summed.

Boldenone undecylenate

Peak

635 mg

Trough

544 mg

Swing

14%

~Steady state

77d

~Washout

75d

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By Austin Witherow and Mason Calvert · Last updated · Sources

Key numbers

Half-life14 days[2]
Time to peak4 days[2]
RouteIntramuscular injection (IM)
Share that is boldenone63%[1]
Data qualityLow

How long the model keeps EQ after the last dose

Measure300 mg once a week, after the last dose
Highest amount644 mg, 4 days after the last dose
50% of that left18 days after the last dose
10% of that left50.8 days after the last dose
3% of that left75 days after the last dose
Levels offAround day 77

On the example input, 300 mg once a week, the curve levels off around day 77; after the last dose it takes 50.8 days to fall to 10% of its final 644 mg peak and 75 days to fall to 3%.

A single 300 mg injection fades on the same timeline from a lower peak of 189 mg of boldenone, because every dose in the model decays at the same 14-day half-life.

This is the modeled amount of the drug itself. Drug tests look for metabolites and use different, often longer, windows. Pedplot does not estimate detection times.

Same weekly amount, different gaps: what the model draws

FrequencyEach doseHigh pointLow pointSwing
Every 10 days (open in plotter)428.6 mg690 mg512 mg26%
Weekly (open in plotter)300 mg643 mg553 mg14%

Each schedule name opens that curve in the plotter.

0400800 mgday 98day 105day 112
  • Every 10 days, 428.6 mg
  • Weekly, 300 mg

The example input adds up to 300 mg a week. Given every 10 days as one 428.6 mg injection, the modeled amount swings 26% between its high and low point; split into 300 mg once a week, the swing is 14%.

The chart shows days 98 to 112 of a 16-week run, after both schedules have levelled off.

Twice a week or every 3 days is left out: each injection takes 4 days to reach its peak in the model, so at that gap every injection would land while the one before was still rising, and the curve would look artificially flat.

Why sources disagree

No human study has measured EQ's half-life. The plot uses a community estimate of about 14 days.

Boldenone undecylenate has only ever been sold as a veterinary product. There is no FDA human label or SmPC, and DailyMed returned no label for boldenone or Equipoise.

A PubMed search for human studies of boldenone pharmacokinetics returned 21 results: doping-control metabolite work, isotope-ratio testing, sewage studies and animal residue reviews. None reports a half-life or time to peak for the injected ester, and a search for boldenone undecylenate pharmacokinetics returned nothing.

So the 14-day figure repeated across the web rests on community estimates, not on a human measurement, and so does the 4-day time to peak.

The one EQ number with a firm basis is the ester weight, computed from PubChem molecular weights in the next section.

How much of each mg is boldenone

100 mg of boldenone undecylenate is about 63.3 mg of boldenone: 286.4 ÷ 452.7, using the molecular weights PubChem lists for boldenone undecylenate (CID 11954310) and boldenone (CID 13308). The other 36.7 mg is the undecylenate ester.

The plot multiplies every dose by 0.63, so the example input of 300 mg per injection is drawn as 189 mg of boldenone.

Compared with Test E and Deca

CompoundHalf-lifeTime to peakParent shareLevels offTo 10% after last dose
EQ14 days4 days63%Day 7750.8 days
Test E4.5 days2 days72%Day 24.517 days
Deca7.5 days2 days64%Day 4227 days

Each row uses that compound's own example input. Of these, Test E falls to 10% of its final peak soonest after the last dose (17 days), and EQ takes longest (50.8 days).

EQ questions

What is the half-life of Equipoise (boldenone undecylenate)?

The plot uses a community estimate of 14 days, marked as an estimate. Boldenone undecylenate has only been sold for veterinary use, and a PubMed search found no human study that reports its half-life. At that rate the modeled amount falls to half its peak 18 days after the last injection, as the washout table shows.

How long does EQ take to reach steady state?

On the example input of 300 mg once a week, the modeled amount levels off around day 77, as the washout table shows: from then on, each low point before an injection is within 3% of the final one. The example 12-week run gets there by its last injection.

How long does EQ take to wash out after the last injection?

After the last injection in the example input (300 mg once a week), the modeled amount falls to 10% of its final 644 mg peak in 50.8 days and to 3% in 75 days (about 10.7 weeks), as the washout table shows. This is drug remaining in the model, not a drug-test window.

How much boldenone is in boldenone undecylenate?

About 63.3 mg of every 100 mg is boldenone: PubChem lists 286.4 for boldenone and 452.7 for the ester. So the default 300 mg injection is drawn as 189 mg of boldenone, as the ester arithmetic shows.

Sources

  1. Computed (PubChem). PubChem molecular weights, boldenone undecylenate: 286.4 ÷ 452.7 = 0.63
  2. Community estimate. Community estimate; no human PK study found (veterinary product only)

Data quality: Low. How the model works.