Triptorelin Dosing Calculator

Dose

50 mcg

Frequency

Single injection

Duration

One-time administration

Route

Intramuscular

Conservative single-dose approach for less severe suppression; combined with SERM PCT

Dose

100 mcg triptorelin + Clomid 25-50 mg daily

Frequency

Single triptorelin injection then daily SERM

Duration

Triptorelin once then 4-6 weeks SERM

Route

Intramuscular

Combined approach using triptorelin for initial GnRH stimulus followed by sustained SERM to prevent relapse

Dose

3.75 mg triptorelin pamoate intramuscular injection

Frequency

Every 28 days (monthly)

Duration

Continuous until disease progression or treatment change

Co-administer anti-androgen for first 2-3 weeks to prevent testosterone flare; monitor testosterone and PSA levels

Dose

11.25 mg triptorelin pamoate intramuscular injection

Frequency

Every 84 days (3 months)

Duration

Continuous until disease progression or treatment change

More convenient dosing schedule; verify castrate testosterone levels are maintained between injections

Dose

22.5 mg triptorelin pamoate intramuscular injection

Frequency

Every 24 weeks (6 months)

Duration

Continuous until disease progression or treatment change

Maximum dosing interval; requires verification of sustained castrate testosterone levels throughout dosing period

How much bacteriostatic water should I add to a 5 mg vial of Triptorelin?

The community standard is 1 mL of bacteriostatic water for a 5 mg Triptorelin vial. That gives a concentration of 2.50 mg/mL, so a 100 mcg dose is 4 units on a U-100 insulin syringe. Adding 1 mL instead doubles the concentration to 5.00 mg/mL and halves the draw to 2 units. Less water = smaller injection volume but harder to measure precisely.

How many syringe units is a 100 mcg dose of Triptorelin?

On a standard U-100 insulin syringe, a 100 mcg dose of Triptorelin is 4 units when the 5 mg vial is reconstituted with 1 mL of bacteriostatic water (2.50 mg/mL). If you use 1 mL of bac water instead, draw 2 units (5.00 mg/mL).

What is the standard Triptorelin dose?

Community-reported protocols for Triptorelin typically use 100 mcg once daily via Intramuscular. 100 mcg is a common starting dose. The "one-shot PCT" protocol; 100 mcg (NOT milligrams); used after all exogenous compounds have cleared

How long does a vial of Triptorelin last at 100 mcg once daily?

A 5 mg vial of Triptorelin contains roughly 50 doses at 100 mcg per injection. At once daily dosing, that is approximately 50 days (about 7 weeks) of supply per vial. Reconstituted Triptorelin should generally be used within 28 days when refrigerated.

Where do you inject Triptorelin?

Triptorelin is typically injected intramuscular. Common sites reported in the literature and by users include: Gluteal muscle (dorsogluteal), Deltoid muscle. Rotate sites with each injection to reduce localized irritation.

Can I use sterile water instead of bacteriostatic water for Triptorelin?

Bacteriostatic water (containing 0.9% benzyl alcohol as a preservative) is strongly preferred for multi-dose vials like Triptorelin because it inhibits microbial growth and lets a single vial be used over multiple weeks. Sterile water has no preservative and should generally be reserved for single-use preparations only.