P-Shot therapy uses platelet-rich plasma (PRP) prepared from your own blood and injected into targeted areas of penile tissue. PRP contains platelets and growth factors involved in tissue repair and healing. P-Shot therapy has been investigated as a potential treatment for erectile function, blood flow, and sexual wellness; however, clinical research remains limited and results vary among patients.
The P-Shot — also known as the Priapus Shot — is performed in-office by our provider team and serves men across the Denver metro, including Arvada-Wheat Ridge and Castle Rock. R2 Medical Clinic is located at 1873 S Bellaire St, Ste 1215, Denver, CO 80222. To ask whether the P-Shot is right for you, call (720) 640-2333.
The P-Shot uses platelet-rich plasma (PRP) drawn from your own blood to stimulate tissue regeneration, improve blood flow, and enhance sensitivity in the penile tissue. This treatment promotes natural healing and growth of new blood vessels.
30-45
Minutes Procedure
0
Days Downtime
3-6
Weeks to Results
Men may seek the P-Shot because of changes in:
Results, when they occur, generally develop gradually over the weeks to months following treatment. The timing and degree of improvement vary among patients.

Some patients seek P-Shot therapy for concerns about penile size or girth; however, PRP should not be presented as a proven method of permanent penile enlargement. If the penis is more erect, then perceived size should also improve.
Erectile dysfunction (ED) can have many causes, and problems with blood flow are only one possibility. Identifying factors contributing to ED can help determine which treatment options are most appropriate.
Common causes and contributing factors include:
Because ED can have multiple contributing factors, treatment should be individualized. At R2 Medical Clinic, evaluation may include medical and sexual health history, medication review, laboratory testing, hormone evaluation, and assessment of other potential contributors before determining appropriate treatment options.
Men may inquire about PRP because of:
Not every cause of erectile dysfunction is likely to respond to PRP. Hormonal, vascular, neurologic, medication-related and psychological contributors should be considered when evaluating sexual dysfunction.
Before: A brief consultation to discuss your goals and medical history. No special preparation is required.
During: The procedure takes approximately 30–45 minutes. A topical numbing cream is applied to ensure comfort throughout the treatment.
After: You can resume normal activities immediately. Most patients begin noticing improvements within 2–3 months as the PRP stimulates new tissue growth and improved blood flow.
PRP injections for erectile dysfunction are an emerging and investigational treatment. Several small clinical studies have reported improvements in erectile-function scores following PRP treatment, particularly in men with vascular erectile dysfunction. However, studies vary considerably in how PRP is prepared, the amount injected, treatment frequency, and how outcomes are measured.
Larger, well-controlled studies are still needed to determine which patients are most likely to benefit, the optimal treatment protocol, and how long potential benefits may last. For this reason, P-Shot therapy should not be considered a guaranteed treatment for erectile dysfunction or a replacement for a comprehensive evaluation of its underlying causes.
Because PRP is prepared from the patient’s own blood, allergic reactions to the PRP itself are uncommon. However, penile injections still carry potential risks. Temporary effects may include soreness, bruising, swelling, tenderness or minor bleeding at injection sites. Infection and other complications are possible but uncommon when appropriate sterile technique is used.
Your medical history, medications and treatment goals should be reviewed before deciding whether PRP therapy is appropriate.
Medically reviewed by Erik Natkin, DO — Founder, Medical Director, & Physician, R2 Medical Clinic. Content last reviewed August 2026.