Handling & safety guide · 11 chapters

Handling & safety guide

How injectable peptides are stored, measured, mixed, injected and thrown away, and how to recognise when something has gone wrong. It exists to reduce harm. It is not a how-to for getting started, and nothing here says any substance is a good idea for you.

General information, not medical advice. Approved drugs: follow your prescriber and the product’s instructions for use. Where this guide and a label disagree, the label wins.

Start here: the six-step path

  1. Read the emergency page first. Know the signs that mean "call an ambulance" before you ever need them: /guide/emergency/.
  2. Look up the substance. Every peptide page (/peptides/<slug>/) shows an evidence grade, its legal status, reported dose ranges with their context, and safety notes. Use the goal finder (/goals/), the comparison tool (/compare/) and the stack explorer (/stacks/) to see how thin or strong the evidence is. Read "Method & disclaimer" (/method/) to understand what the grades and user statistics can and cannot tell you.
  3. Check whether you are in a group that should not do this at all (the list is below), and talk to a clinician.
  4. Learn storage and the discard rules. /guide/storage/ and /guide/warning-signs/.
  5. Learn the arithmetic and the technique. /guide/mixing-math/, /guide/reconstitution/ and /guide/injection-basics/. Measuring errors are a documented cause of serious home dosing mistakes; regulators have received reports of overdoses, some needing hospital care, from people confusing milligrams, millilitres and syringe "units" [1].
  6. Know what comes after. /guide/side-effects/, /guide/troubleshooting/ and /guide/disposal/.

Read “Start here” in full, including who should not self-administer anything at all.

All chapters

  1. Emergency: when to call for help

    The signs that mean call emergency services now: severe allergic reaction, chest pain, severe abdominal pain, fainting, and infection that is spreading.

  2. Start here

    A six-step path through the handling and safety guide and the rest of Peptide Ledger, plus who should not self-administer anything at all.

  3. Storage

    Dry powder versus mixed solution, fridge versus freezer, light, temperature excursions, and how long a mixed vial is usually treated as usable and why.

  4. Warning signs: when to throw it out

    A checklist for dry powder, mixed liquid, vials over time, and the injection site afterwards: what is normal, what means discard, and what means see a doctor.

  5. Mixing math

    The arithmetic only: concentration, volume and U-100 syringe units, with worked examples and the specification for the site's calculator.

  6. Reconstitution: mixing a dry vial

    Nine numbered steps of clean technique for turning a freeze-dried powder into a solution, each with a picture.

  7. Injection basics

    Subcutaneous technique in eight illustrated steps: sites and rotation, needle length, single-use needles, and how pens differ from syringes.

  8. Side effects by drug class

    Common versus serious side effects for GLP-1/GIP drugs, growth-hormone secretagogues, melanocortins and everything else, and what to do about each.

  9. Troubleshooting

    The common practical problems (powder that won't dissolve, cloudy liquid, foam, bubbles, storage accidents, missed weekly or daily doses) and the conservative answer to each.

  10. Disposal and travel

    Sharps containers, why needles are never recapped, how local disposal rules work, what to do with vials and leftover liquid, and travelling with injection supplies.

  11. Using a peptide pen

    How approved pens and refillable cartridge pens differ, how pen units relate to dose, and the basics of injection, storage, missed doses, and disposal.