日本の未調剤処方箋:10年間の後ろ向き分析
Yuki Kataoka1,2,3,4,5,6, Yudai Tamada6, Takahiro Tabuchi7
1Center for Postgraduate Clinical Training and Career Development, Nagoya University Hospital, Nagoya, Japan.
Pharmacoepidemiology and drug safety
|January 16, 2026
まとめ
日本の一次的な服薬アドヒアランス(PMN)は、10年間で約5%で安定していた。この研究は、保険者が未調剤処方箋について医療提供者に通知するシステムを開発する必要性を強調している。
科学分野:
- 医療サービス研究; 医薬品政策; 公衆衛生
背景:
- 日本のユニバーサルヘルスケアカバレッジは、医薬品へのアクセスを確保することを目的としています。服薬アドヒアランスのパターンを理解することは、治療結果を最適化するために不可欠です。一次的な服薬アドヒアランス(PMN)は、新しい処方箋を調剤しないことと定義され、ヘルスケアシステムの効率に影響を与えます。
研究 の 目的:
- 日本の一次的な服薬アドヒアランス(PMN)の時間的傾向を特徴づけること。ユニバーサルヘルスケアシステム内での10年間(2014年から2023年)のPMNパターンの分析。異なる患者層および疾患状態におけるPMNの変動を特定すること。
主な方法:
- DeSCヘルスケアデータベースを利用した後ろ向きコホート研究。2014年4月から2023年9月までの日本の医療請求および薬局処方記録の分析。処方箋発行後の調剤記録の不存在をPMNとして定義。
主要な成果:
- 260万人近くの患者からの260万件以上の医療請求を分析しました。全体的なPMNの割合は4.9%で、2014年の5.6%から2023年には4.3%に減少しました。疾患別のPMNは、高血圧の4.0%から脊椎疾患の7.0%まで様々でした。
結論:
- 日本のPMNは、研究期間を通じて約5%で一貫していました。医療提供者に未調剤処方箋を通知するシステムを導入することを保険者に推奨します。今後の研究では、電子処方箋システムがPMN率に与える影響を調査すべきです。
関連する概念動画
Prescription, Nonprescription and Orphan Drugs
Prescription drugs require a prescription from a medical practitioner and can only be obtained from a pharmacy. They have many applications, including treating pain, anxiety, and hypertension.
The misuse and addiction to prescription drugs is a growing problem that can affect people of all age groups, specifically teenagers. This can happen when prescription medications are used in ways not intended by the prescriber, such as taking someone else's prescription or using medication for...
The misuse and addiction to prescription drugs is a growing problem that can affect people of all age groups, specifically teenagers. This can happen when prescription medications are used in ways not intended by the prescriber, such as taking someone else's prescription or using medication for...
Pharmaceutical Alternatives: Stability-Related Therapeutic Nonequivalence
Generic intravenous (IV) drugs are considered bioequivalent to their branded counterparts due to their 100% bioavailability upon administration. However, variations in stability among different drug products can significantly influence their therapeutic performance, even if they are pharmaceutically equivalent.Cefuroxime, a prophylactic antimicrobial, is often used as a single-dose IV injection for patients undergoing coronary artery bypass grafting surgery. A 3 g dose typically provides...
Drug Dosing: Geriatric Patients
Elderly individuals encompass a diverse population with varying degrees of age-related physiological changes. Defining the elderly presents challenges, as the geriatric population is often arbitrarily categorized as individuals older than 65. However, many individuals in this group lead active and healthy lives, with an increasing number surpassing 85 years and falling into the older elderly category. Physiological changes associated with aging impact performance capacity and homeostatic...
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Absorption
As individuals age, their body's physiology evolves, affecting drug pharmacokinetics. The most apparent changes occur in the gastrointestinal tract, where an increase in gastric pH, a delay in gastric emptying, and a reduction in gastrointestinal motility are observed. Remarkably, these changes do not substantially modify the absorption of orally administered drugs, particularly those absorbed via passive diffusion.Transdermal drug delivery emerges as a highly viable method for older adults due...
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution
Drug distribution in the human body is influenced by several factors, including plasma protein concentration, body composition, blood flow, tissue-protein concentration, and tissue fluid pH. Among these, changes in plasma protein concentration and body composition due to aging significantly affect how drugs are distributed within the body. Specifically, aging is associated with a decrease in albumin levels by about 10% and an increase in α1-acid glycoprotein levels. These alterations are not...
Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion
In geriatric patients, renal physiology undergoes significant changes, including diminished renal blood flow and a lower glomerular filtration rate (GFR), leading to alterations in medication clearance. Drugs such as aminoglycoside antibiotics, lithium, and digoxin, which rely on glomerular filtration for removal from the body, particularly impact pharmacokinetics. These drugs tend to have slower clearance rates in older adults, necessitating careful dosage considerations.Evaluation of renal...


