
It is the season of sniffles, which means you are likely doubling down on immune-boosting supplements while also taking over-the-counter (OTC) cold meds. You think you are being proactive, but you might be mixing a chemical cocktail that your liver hates. Many “natural” supplements have potent interactions with standard cold and flu drugs, ranging from cancelling each other out to causing dangerous spikes in blood pressure. Just because it is sold in the vitamin aisle doesn’t mean it plays nice with what is sold at the pharmacy counter.