Your prescription.
In full orbit.
A privacy-first tool for transfeminine and transmasculine adults. Check the volume created by a dose already prescribed to you, map its written interval across 90 days, and explore broad relative patterns without guessing a blood level.
RUVVI cannot determine a safe dose, tell you what to inject, predict laboratory results, diagnose a condition, or replace individualized care. Never start, stop, or change medication because of this page. If the math differs from your written instructions, stop and ask your pharmacist or prescriber.
Injection Volume Checker
Use only the dose already written by your clinician and the concentration printed on your own vial.
The checker will divide the prescribed milligrams by the vial's milligrams per milliliter.
Stop if this does not match your written instructions. Do not inject from this result alone. Recheck the vial and ask your pharmacist or prescriber before using a different amount.
See your written schedule at a glance.
This calendar repeats only the interval and start date you enter. It does not decide when or how much anyone should inject.
RUVVI will map that exact repeating schedule across 90 days without saving it.
Hormone Pattern Visualizer
Peak and gradual decline
A conceptual rise followed by a longer decline before the next event. The height is deliberately relative and cannot be converted into a dose or laboratory value.
Useful boundaries.
Prescription math onlyThe calculator divides an amount you enter in mg by a vial concentration you enter in mg/mL.
Your interval, not oursThe 90-day calendar repeats only the start date and interval you enter from your written instructions.
No health data savedYour entries stay in this browser tab and are not sent to a profile, database, or partner.
Original presentationRUVVI does not reproduce Transfeminine Science's code, graphs, wording, data model, or interface.
Verify the label. Keep a clinician in the loop.
Concentration examples come from current U.S. drug labels. They are not transgender dosing recommendations. Endocrine Society guidance emphasizes individualized care and regular clinical and laboratory monitoring.