How many pumps of AndroGel (testosterone gel) 20.25 mg per pump, 1.62% concentration are needed to deliver the usual starting dose?

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Last updated: October 27, 2026 • View editorial policy

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AndroGel 1.62% Dosing: Start with 2 Pumps Daily

For AndroGel 1.62% (20.25 mg per pump actuation), the starting dose is 2 pumps once daily, delivering 40.5 mg of testosterone. 1

Dosing Algorithm

Initial Dosing

  • Starting dose: 2 pumps (40.5 mg) applied once daily, preferably in the morning
  • Apply to clean, dry, intact skin of shoulders, upper arms, and/or abdomen
  • Never apply to genitals
  • Allow gel to dry for several minutes before dressing
  • Wash hands with soap and water after application 1

Pump Preparation

Before first use, prime the pump by fully depressing it 3 times and discarding this portion to ensure accurate dosing 1

Dose Titration Based on Testosterone Levels

The guideline evidence shows AndroGel 1.62% has a typical dose range of 20.25-81 mg daily 2, which translates to:

  • Minimum: 1 pump (20.25 mg)
  • Starting: 2 pumps (40.5 mg)
  • Maximum: 4 pumps (81 mg)

Measure serum testosterone 2-8 hours after gel application once the patient has been on treatment for at least 1 week 3. Adjust dosing to achieve mid-normal testosterone range (approximately 400-600 ng/dL):

  • If testosterone is below normal range: Increase by 1 pump increment
  • If testosterone exceeds normal range: Decrease by 1 pump increment
  • If testosterone consistently exceeds normal at minimum dose (1 pump): Discontinue therapy 1

Monitoring Schedule

Initial Phase (First Year)

  • 3-6 months: Check testosterone level and hematocrit
  • 12 months: Repeat testosterone and hematocrit 3

Ongoing Monitoring

  • Annually: Testosterone, hematocrit, symptom assessment
  • Hematocrit >54%: Stop therapy until it decreases; evaluate for hypoxia/sleep apnea; restart at reduced dose 4, 3

Prostate Monitoring (for men 40+ years)

  • Baseline: PSA and digital rectal exam before starting
  • 3-12 months: Repeat PSA and exam
  • Urological referral if:
    • PSA increase >1.4 ng/mL within 12 months 3
    • Confirmed PSA >4.0 ng/mL
    • Abnormal digital rectal exam
    • PSA velocity >0.4 ng/mL per year (after 2+ years of data) 4

Critical Safety Considerations

Transfer risk is the major pitfall with gels 2, 4. The testosterone residue on skin can transfer to partners or children through skin-to-skin contact. Instruct patients to:

  • Cover application sites with clothing
  • Wash application site with soap and water before anticipated skin contact
  • Washing 4-6 hours after application maintains therapeutic levels 4

Avoid fire, flames, or smoking until gel dries - alcohol-based products are flammable 1

The evidence shows transdermal gels have advantages over injections, including easier application, better skin tolerability, and potentially lower cardiovascular risk due to more stable testosterone levels without the peaks and valleys seen with injections 2. However, gels are more expensive and carry transfer risk 2.

References

2
Guideline

practical use of pharmacotherapy for obesity.

Gastroenterology, 2017

3
Guideline

testosterone therapy in men with hypogonadism: an endocrine society clinical practice guideline.

The Journal of clinical endocrinology and metabolism, 2018

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Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.