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Penile Injection Therapy

University Compounding Pharmacy stocks 17 sterile formulas for penile injection. These are available for overnight delivery in a discreet package.


All batches of penile injections are compounded in a certified ISO Class 7 Clean Room and tested by an independent analytical laboratory.  

We compound the following formulas in several strengths:

  • Tri-Mix - PGE1 (Alprostadil) + Phentolamine + Papaverine

  • Bi-Mix - Phentolamine + Papaverine

  • Quad-Mix - PGE1 (Alprostadil) + Phentolamine + Papaverine + Atropine

Instructional Videos

Injection Instructions (download)

  • How should I store Tri-mix injection vials?
    Store Tri-mix vials in the refrigerator.
  • Can Tri-mix be stored in the freezer to extend the shelf life?
    We don't recommend storing Tri-mix in the freezer.
  • Do you make other strengths of Tri-mix?
    UCP compounds a wide range of strengths of Tri-mix, Quad-mix, Bi-mix, and PGE1/Phentolamine injection. Call the pharmacy to learn more.
  • What should I do if Tri-mix stops working?
    There are various reasons that Tri-mix may not work as desired. If this happens, feel free to call and speak to one of our pharmacists.
Need more help with your medication?

Other Therapies

The pharmacy dispenses numerous other prescription items, including:


Have questions? Call a pharmacist today at (619) 683-2005 or fill out the form to the right.

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