Erection
AndroShock: Storz Duolith SD1 Focused Shockwave
Treat erectile dysfunction with the focused AndroShock® system
We treat erectile dysfunction using gentle sound-wave pulses applied to the penis. The pulses stimulate new blood-vessel growth in the erectile tissue, improving the blood flow that produces an erection — treating a root cause of ED rather than masking it with pills.
Published randomised controlled trials report improved erectile function that can be sustained for 1–2 years, without drugs, needles or downtime.
- Non-invasive — no drugs, no needles, no downtime
- Focused (not radial) technology, used in 8+ RCTs
- ~3,000 pulses per session across multiple treatment sites
- Performed at our Harley Street clinic
Key facts at a glance
Focused vs Radial
| Feature | Focused Shock (Storz Duolith SD1) | Radial Shock |
|---|---|---|
| Type of wave | Focused (concentrated energy) | Radial (dispersed pressure wave) |
| Depth of penetration | Targets deep erectile tissue | Mainly superficial tissue |
| Clinical evidence | Used in published studies, including RCTs | Limited direct evidence in ED |
| Precision | High – energy delivered to a specific depth | Lower – energy spreads outward |
| Consistency of results | More predictable and evidence-based | More variable |
| Typical use | Medical/clinical ED treatment | Often physio / general wellness |
| Cost of device | High (medical-grade) | Lower-cost systems |
| Used at Androfill / AndroClinic | ✅ Yes (exclusively) | ❌ No |
The right tool for the job
Much of the positive clinical evidence for shockwave therapy in erectile dysfunction — including randomised, placebo-controlled trials and systematic reviews — comes from studies using focused devices like the Storz Duolith SD1, rather than radial systems.
For this reason, we exclusively use focused AndroShock® technology, aligning our clinical approach with the strongest available evidence base.
⏳ Duration of Effect
Clinical studies suggest that improvements in erectile function may be sustained for up to 1–2 years in some patients, with peak effects often observed within the first 6–12 months
👉 https://www.storzmedical.com/en/disciplines/literature-database-blog/database-cpps-ipp-ed/lange-m-et-al-2024/
(Lange et al., 2024)
🧪 Evidence from Randomised Controlled Trials
Several randomised, double-blind, placebo-controlled trials have demonstrated improvements in erectile function following treatment with focused shockwave therapy.
A prospective randomised trial using the Storz Duolith SD1 system reported statistically significant improvements in erectile function scores compared to sham treatment
👉 https://pubmed.ncbi.nlm.nih.gov/35021310/
(Chung et al., 2022; DOI: 10.1111/and.14246)
Similarly, sham-controlled studies have shown clinically meaningful improvements in erectile function scores (e.g. SHIM/IIEF), with a proportion of patients achieving significant benefit compared to placebo
👉 https://academic.oup.com/smoa/article/11/5/qfad053/7394920
(Sexual Medicine Open Access, 2023; DOI: 10.1093/smoa/qfad053)
📊 Evidence from Systematic Reviews and Meta-Analyses
Systematic reviews and meta-analyses of the available literature have consistently found that LiSWT can lead to significant improvements in erectile function, particularly in patients with mild to moderate ED
👉 https://doi.org/10.1016/j.jsxm.2018.11.013
(Sokolakis et al., 2019)
👉 https://icurology.org/DOIx.php?id=10.4111/icu.20210317
(ICUrology, 2021; DOI: 10.4111/icu.20210317)
These reviews highlight that the strongest and most consistent evidence comes from studies using focused shockwave technology, rather than radial wave devices.
📚 References (8 sources)
Chung, E. et al. (2022). Low-intensity extracorporeal shockwave therapy for erectile dysfunction.
👉 https://pubmed.ncbi.nlm.nih.gov/35021310/
DOI: 10.1111/and.14246
Sexual Medicine Open Access (2023). Randomised sham-controlled trial of LiSWT in ED.
👉 https://academic.oup.com/smoa/article/11/5/qfad053/7394920
DOI: 10.1093/smoa/qfad053
Sokolakis, I. et al. (2019). Systematic review and meta-analysis.
👉 https://doi.org/10.1016/j.jsxm.2018.11.013
ICUrology (2021). Review of LiSWT for ED.
👉 https://icurology.org/DOIx.php?id=10.4111/icu.20210317
DOI: 10.4111/icu.20210317
Ghahhari, J. et al. (2022). Shockwave therapy protocols and mechanisms.
👉 https://www.storzmedical.com/en/disciplines/literature-database-blog/database-cpps-ipp-ed/ghahhari-j-et-al-2022/
Lange, M. et al. (2024). Long-term outcomes of focused shockwave therapy.
👉 https://www.storzmedical.com/en/disciplines/literature-database-blog/database-cpps-ipp-ed/lange-m-et-al-2024/
ClinicalTrials.gov (NCT05868668).
👉 https://clinicaltrials.gov/study/NCT05868668
British Medical Bulletin (2025). Review of evidence.
👉 https://doi.org/10.1093/bmb/ldaf004
⚖️ Clinical Perspective
While the evidence base for shockwave therapy in ED is growing and increasingly robust, it is important to recognise that:
- Not all patients respond to treatment
- Outcomes vary depending on patient factors (e.g. severity and cause of ED)
- Treatment protocols are not yet fully standardised
A recent review highlights that, although the results are promising, further standardisation and long-term data are still being developed
👉 https://doi.org/10.1093/bmb/ldaf004
(British Medical Bulletin, 2025)
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Written and medically reviewed by Dr Gary Horn — consultant plastic and reconstructive surgeon, GMC 4267803. Reviewed by Dr Greta Peciulyte, Urologist, GMC 7539240. Last reviewed 28 August 2026. General information only, not a substitute for a consultation. Individual results vary.