Guides: Syringes, Storage, Travel, Side Effects and Visits

Each guide answers one question from dated, cited sources. None of them gives an amount to take.

Syringes and units

How to read an insulin syringe
On a U-100 syringe 100 units = 1 mL. Drag the plunger on a scale drawn to size for 0.3, 0.5 and 1 mL barrels and read units and mL. Free, printable.
U-40 vs U-100 syringe
A U-40 syringe is marked for 40 units per mL, a U-100 for 100. See why the same mL reads as different units, with examples and the label rule on syringes.
Milligrams to units
Units count volume, mg counts substance. Use the mg per mL on your label to convert mg, mcg and units both ways. Calculator and worked layout, free.
Units to mg converter
Turn syringe units into mg using the mg per mL on your label. Works for GLP-1 vials, math shown, free, no sign-up. A converter, not dosing advice.
Printable syringe chart
Free PDF chart of every unit mark with its volume in mL, for 0.3, 0.5 and 1 mL U-100 syringes. US Letter. Print at 100% and check against your syringe.

Left out of the fridge: where labels set limits
Left Ozempic, Wegovy, Zepbound or Mounjaro out of the fridge? Find where each label prints its limits, and what FDA says about compounded vials.
Opened vial: discard-by date
What FDA and labels say about discard-by dates for multi-dose vials, plus 10 questions to ask your pharmacist and a free day counter.
Peptide storage
There is no one answer: the date comes from your label or pharmacist. See where it usually appears and how to log it with a reminder. Free, no sign-up.
Traveling with injectable medication
What TSA says about syringes, liquid medicine and cooling packs, what CDC says to carry abroad, and how to log a weekly shot across time zones.
How to dispose of needles at home
FDA's two steps for used needles, syringes and pen needles: a sharps container right after use, then your community's drop-off or pick-up program.

Missed a dose: where your label answers it
Each approved GLP-1 label has its own missed-dose rule. See where yours is printed, what to ask about a compounded vial, and how to log a missed shot.
Injection sites
Your prescriber or the product instructions name the areas. Use this body map to log each injection and see which areas you used recently. Free, private.
Injection site reactions
What FDA labels report for injection site reactions, how they describe rotating sites, and a free log for site and reaction notes. Not medical advice.
How long semaglutide side effects last
What FDA labels and a pooled trial analysis say about how long nausea, vomiting, diarrhea and constipation lasted. Sources linked. Not medical advice.
Report a side effect to FDA
Report a side effect, a quality problem or a dosing mix-up to FDA online, by fax or by phone. See what Form 3500B asks for and what to have ready.
What to bring to a follow-up visit
A checklist for your next GLP-1 follow-up appointment: medicine list, label, shot log, side effect notes and questions, based on FDA, NIA and MedlinePlus.

How to reconstitute peptides
Five math steps from vial label to units on your syringe: mg per mL, mL to draw, units. Worked layout, calculator and chart included. Free, no sign-up.
Reconstitution chart
Lookup chart: vial mg ÷ mL of liquid = mg per mL and mcg per unit on a U-100 syringe. Vials 2 to 50 mg, 1 to 5 mL. Printable, free, no sign-up.
How to read a vial label
Find the total mg, the mL of liquid and the dates on a vial label, and see why mg per vial and mg per mL differ. Examples with labeled teaching numbers.
What are peptides
Peptides are short chains of amino acids. Plain definition, how they differ from proteins, and dated links to FDA pages, not verdicts. No product advice.
Tracker spreadsheet
Free CSV template with date, site, vial and notes columns, empty by design. Open it in any spreadsheet or use the free web log with the same columns.
GLP-1 tracker
Free GLP-1 injection log in your browser: date, site, vial or pen, notes. No account, data stays on your device, export anytime. Add to your Home Screen.