Nearly one-third of middle-aged adults struggle with basic health tasks such as understanding medical instructions, remembering what a doctor said, and taking medication correctly, according to new research published in the Journal of Internal Medicine.
The study highlights a common problem in healthcare: many people misinterpret simple prescription instructions. For example, “take twice daily” may be unclear. Some patients think it means taking two pills at once, while others take one pill in the morning and another later in the day. There is also confusion about whether medicines should be taken with food or alongside other drugs.
Researchers say these misunderstandings affect a wide range of patients, including those familiar with hospitals and long-term treatment. The study involved more than 900 patients at primary care clinics, who were tested on how well they could understand and recall health information.
The results showed that even a few minutes after a doctor explained a diagnosis, many patients could not clearly remember the details. This suggests that important health information is often not fully absorbed during short consultations.
The study also found that prescription labels can be confusing. Different pharmacies may phrase instructions differently, and important warnings are sometimes placed in varying parts of the label. This inconsistency makes it harder for patients to know exactly what to do.
Brief doctor visits add to the challenge. With limited time, patients may feel hesitant about asking questions, leading to missed details.
These misunderstandings can cause serious problems. Some people take too little medicine, reducing effectiveness. Others take too much, increasing side effects. In some cases, patients mix medicines that should not be combined or take them at the wrong time of day, affecting how well they work.
For example, some water tablets are meant to be taken in the morning. If taken at night, they can cause frequent bathroom trips and disturb sleep.
Researchers also noted that some patients try too hard to follow instructions precisely, which can complicate matters further. They may space doses too rigidly or wake up at night to take medicine, even when unnecessary.
Experts stress that this is not the fault of patients. Instead, it reflects problems in how health information is explained and shared. Medical language can be difficult, and instructions are not always written simply or consistently.
Health professionals say improvements are needed. Clearer instructions, simpler language, and better-designed labels could reduce confusion. They also encourage patients to ask questions and confirm they understand how to take their medicine before leaving the clinic.
As one expert said, “Patients are trying their best, but the way information is shared is often too complicated.”
Another added, “Small misunderstandings about medicine can lead to big health problems if they are not corrected.”
The study shows that better communication between health workers and patients is essential. When instructions are clear and easy to follow, patients are more likely to take their medicine correctly and stay healthy.
Globally, misuse of medicines is a growing concern. Studies show that up to 50 per cent of patients worldwide do not take prescribed drugs correctly, whether through wrong dosing, missed doses, or unsafe combinations. This contributes to treatment failure, drug resistance, and preventable complications, especially in chronic illnesses.
In Kenya, medication misuse is also rising, particularly with painkillers, antibiotics, sedatives, and other prescription drugs.
Health experts warn that self-medication, sharing prescriptions, and ignoring dosing instructions are common, especially in urban areas. While national figures vary, regulators and health agencies note that improper use of medicines is contributing to avoidable health risks and poor treatment outcomes across the country.
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