Evaluation of blood pressure lowering effect by generic and brand-name antihypertensive drugs treatment: a multicenter prospective study in China

Variation in Price of Cardiovascular and Diabetes Medicine in Indonesia, and Relationship with Quality: A Mixed Methods Study in East Java

Lower-middle income Indonesia, the world's fourth most populous country, has struggled to contain costs in its mandatory, single-payer public health insurance system since the system's inception in 2014. Public procurement policies radically reduced prices of most medicines in public facilities and the wider market. However, professional associations and the press have questioned the quality of these low-cost, unbranded generic medicines. We collected 204 samples of four cardiovascular and one antidiabetic medicines from health facilities and retail outlets in East Java. We collected amlodipine, captopril, furosemide, simvastatin, and glibenclamide, sampling to reflect patients' likelihood of exposure to specific brands and outlets. We recorded sales prices and maximum retail prices and tested medicines for dissolution and percentage of labeled content using high-performance liquid chromatography. We conducted in-depth interviews with supply chain actors. All samples, including those provided free in public facilities, met quality specifications. Most manufacturers make both branded and unbranded medicines. Retail prices varied widely. The median ratio of price to the lowest price for an equivalent product was 5.1, and a few brands sold for over 100 times the minimum price. Prices also varied between outlets for identical products because retail pharmacies set prices to maximize profit. Because very-low-cost medicines were universally available and of good quality, we believe richer patients who chose to buy branded products effectively protected medicine quality for poorer patients in Indonesia because manufacturers cross-subsidize between branded and unbranded versions of the same medicine.

Pharmacotherapy for Essential Hypertension: A Brief Review

Hypertension is one of the leading causes of disability-adjusted life years and mortality, with approximately 15% prevalence worldwide. Most patients with hypertension from low- to high-income countries do not receive treatment. Among those who receive treatment, the majority remain undertreated and do not achieve their blood pressure goals. Therefore, new hypertension guidelines introduce more conscientious treatment strategies to maximize the probability of achieving the new strict blood pressure goals compared with the previous guidelines. Who should receive treatment for hypertension? Which antihypertensive medications have the strongest supporting data? Are generic and more affordable medications as effective as expensive brand medications? What are the different treatment strategies to maximize success in controlling blood pressure? Here, we briefly review pharmacotherapy for hypertension and provide answers to these questions as well as some other common questions regarding treatment of hypertension.

Clinical equivalence of generic and brand-name drugs used in cardiology: what do we know?

The problem of using generics in the treatment of patients with cardiovascular diseases remains relevant for more than a decade. The concern of doctors, pharmacists and patients is not diminishing with the constant rise in cardiovascular morbidity and mortality worldwide. Based on a systematic review of 186 publications, physicians identified concerns about the quality, reliability and replaceability of original drugs; pharmacists have shown the highest level of generic approval. Patients distrust of generics was revealed, caused by a lack of information, concerns about packaging, and negative experience of replacing the original drug. Three meta-analyzes compared generic and original drugs of cardiovascular groups in terms of efficacy and safety. A 2008 meta-analysis (47 studies, 9 classes of cardiovascular drugs) assessed the effect on mild outcomes, a 2016 meta-analysis (74 studies, 7 classes of drugs) also assessed side effects. The cumulative effect revealed a small and nonsignificant difference, which indicated that there was no superiority of original drugs over generics; there were no differences in the frequency and severity of side effects between generics and original drugs. A 2020 meta-analysis (72 studies, 9 drug classes) assessed the frequency of hospital admissions (including emergency department consultations, hospitalizations) and found a significant increase in the risk for generics for any reason (14%), but not for cardiac vascular diseases. A review of 8 cohort studies evaluating antihypertensive drugs for long-term cardiovascular outcomes, duration of retention, and substitution effect did not find significant differences between generics and brands. In a systematic review of studies comparing warfarin and generics, there were no significant differences in international normalized ratio and the incidence of thromboembolic and hemorrhagic complications; however, in one study, the frequency of hospital visits was 10% higher for generics. A systematic review of studies comparing clopidogrel versus generics shows drug comparability for major cardiovascular events and mortality. A review of 5 cohort studies evaluating originator statins and generics showed comparable rates of all-cause mortality and major cardiovascular events, except for one study with conflicting results. Meta-analyzes and large observational studies indicate that generics are not the worst efficacy, sometimes even surpass that of original drugs and can be justifiably used in clinical practice.