Testosterone Transdermal Patch

Androderm

Testosterone TRT Patch FDA/EMA Label

Half-life

24 hr

Time to Peak

10 hr

Steady State

~5 days

Bioavailability

12%

Dose Range

2–8 mg

Frequency

Daily

Overview

Transdermal patch applied nightly to back, abdomen, upper arm, or thigh. Designed to mimic diurnal testosterone rhythm — nighttime application produces a morning peak. High rate of skin irritation (30-60% of users). Less commonly prescribed than gel.

Mechanism of Action

Controlled-release patch delivers testosterone through the skin at a constant rate over 24 hours. Nighttime application mimics the natural circadian testosterone peak.

Dosing Information

Route	Dose Range	Half-life	Tmax	Frequency
Transdermal Patch	2–8 mg	24 hr	10 hr	Daily

Storage & Handling

room_temperature — Store at 20-25C (68-77F). Do not remove from protective pouch until ready to use. Apply immediately after opening.

Used in Regimens

Testosterone Transdermal Patch is not currently part of any catalog regimen.

Data Sources

FDA Label Androderm FDA Prescribing Information

Related Tools

Medication Level Plotter

See blood level curves for this compound

Dose Calculator

Calculate reconstitution and draw volumes

Split Dose Calculator

Divide your weekly dose into multiple injections

Track Testosterone Transdermal Patch with Doseline

Reminders, medication level charts, injection site rotation, and protocol tracking — all free, all private.

Join the waitlist

Doseline provides informational tools only. It is not a medical device and does not provide medical advice. Always consult a qualified healthcare provider.