この記事の概要
The effect of a sham drug (placebo) on erectile dysfunction (ED) is often observed in clinical trials. The placebo effect is a phenomenon in which patients experience a temporary improvement in symptoms based on the expectation or belief that they are being treated.
The effect of a sham drug (placebo) on erectile dysfunction (ED) is often observed in clinical trials. The placebo effect is a phenomenon in which patients experience a temporary improvement in symptoms based on the expectation or belief that they are being treated.

Principle of the Placebo Effect
- Psychological Factors: EDs can also be caused by psychological factors. Anxiety and stress can exacerbate symptoms, so having a sense of security and anticipation can temporarily reduce these psychological barriers.
- Power of Expectations: Positive expectations of treatment can affect autonomic balance and hormone levels, causing temporary improvements.
Study of Placebo Effect in ED
- In clinical trials of ED drugs, a certain percentage of patients in the placebo group have reported improvement in erectile function. This improvement is thought to be due to a sense of psychological security and anticipation from believing that they are taking the drug.
- However, the effects shown by placebos are usually short-lived and of limited magnitude compared to real treatments.
Conclusion
Placebos may have a temporary effect on some ED patients, but they do not address the underlying physiologic problem and are insufficient for a sustained therapeutic effect. The use of approved medications is recommended for the treatment of EDs, as they are more effective than placebo. It is also important to be guided by a physician with an appropriate diagnosis and treatment plan based on the cause of your symptoms.
畠山 聡先生 (はたやま さとし)
医師・医学博士 / ヒロクリニック医師
略歴
- 2016年 大阪市立大学(現:大阪公立大学)卒業
- 2016年 育和会記念病院
- 2019年 大阪鉄道病院
- 2021年 大阪公立大学附属病院
- 2022年 大阪鉄道病院医長
- 2023年 ヒロクリニックなんば心斎橋院院長
資格・所属
- 日本泌尿器科学会認定の泌尿器科専門医
この記事は、ヒロクリニックEDの編集・監修体制にもとづき、資格を持つ医師が内容を確認しています。


