Scientists reveal the best way to swallow pills
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Researchers have found that taking the pills while lying on the right side is most effective. This allows the tablet to enter the deepest part of the stomach, where he dissolves 2.3 times faster than in an upright position.
A recent Johns Hopkins study found that how you swallow a pill can affect how quickly your body absorbs the drug.
You probably don’t think about body posture when you’re taking medicine for a headache. But a recent study from Johns Hopkins University found that your posture can greatly affect how quickly your body absorbs the drug, taking as much as an hour longer.
The conclusions are based on what is believed to be the first model to replicate how drugs dissolve in the human stomach.
Senior author Rajat Mittal, an engineer and fluid mechanics expert at Johns Hopkins University, said, “I was very surprised that posture had such a big effect on the dissolution rate of a tablet.” I never thought about whether I was right or wrong, but now I always think about it every time I take the pill.”
Their findings were recently published in the journal
Your posture when taking a pill makes a big difference in how fast your body absorbs the medicine. Credit: Khamar Hopkins/Johns Hopkins University
The majority of pills don’t start working until the stomach passes its contents into the intestine. As a result, the closer a pill falls to the antrum, the quicker it begins to break down and unload its contents into the duodenum, the first part of the small intestine. If you’re aiming a pill for this part of the stomach, your posture is crucial in order to take use of gravity as well as the inherent asymmetry of the stomach.
Four postures were tested by the team. Taking tablets while resting on the right side was by far the most effective, sending pills into the deepest part of the stomach and achieving a dissolution rate that was 2.3 times quicker than even an upright posture. The worst was lying on the left side. The team was astounded to discover that if a tablet dissolves in 10 minutes on the right side, it may take up to 23 minutes in an upright posture and over 100 minutes while laying on the left side.
“For elderly, sedentary or bedridden people, whether they’re turning to left or to the right can have a huge impact,” Mittal said.
Standing upright was a decent second choice, essentially tied in effectiveness with lying straight back.
The team also considered stomachs that aren’t functioning at full strength due to gastroparesis caused by diseases such as diabetes and Parkinson’s Syndrome meant for pill dissolution. Even a small change in the conditions of the stomach can lead to significant differences in the outcome of an oral drug, said lead author Jae Ho “Mike” Lee, a former postdoctoral researcher at Johns Hopkins.
The impact of stomach disease on drug dissolution was similar to that of posture—which underscores how significant a difference posture makes.
“Posture itself has such a huge impact it, it’s equivalent to somebody’s stomach having a very significant dysfunction as far as pill dissolution is concerned,” Mittal said.
Future work will attempt to predict how the changes in the biomechanics of the stomach affect how the body absorbs drugs, how food is processed in the stomach, and the effect of posture and gastroparesis on food digestion.
Reference: “Computational modeling of drug dissolution in the human stomach: Effects of posture and gastroparesis on drug bioavailability” by J. H. Lee, S. Kuhar, J.-H. Seo, P. J. Pasricha and R. Mittal, 9 August 2022, Physics of Fluids.
DOI: 10.1063/5.0096877
The study was funded by the National Science Foundation and the National Institutes of Health.
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