Testing Solubility and Acidity of Over-the-Counter Pharmaceuticals

When we are slightly ill, we often take over-the-counter drugs and often times, they relief our symptoms, but sometimes induce adverse side-effects. So, it’s important to know the characteristics of the medicine we take, and how it may impact us.

In one of our chemistry classes, we investigated the solubility and acidity of over-the-counter medicine—aspirin, Tylenol, Alka-seltzer, and tums—in different solvents.

A drug has to be soluble in order for the body tissues to easily absorb it. Our body should be able to absorb the medication easily for it to be effective. In addition, when drugs are not soluble, it is possible that there’s a residue of that drug in our body, causing adverse effects to our body. I think that is why we usually take medication along with water since more of those drugs are soluble with that solvent.

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