Taking antibiotics? Your morning milk, coffee or alcohol could interfere with them

Antibiotics are powerful medicines that can help fight off bacterial infections, but the timing and combination of certain foods and drinks with these medications can impact their effectiveness. Dairy products such as milk, cheese, and yogurt, along with calcium-rich foods like calcium-fortified juices, tofu, and calcium supplements, can interfere with the absorption of specific antibiotics.

Calcium can bind to the antibiotic molecules in the digestive tract, forming a compound that the body cannot readily absorb, resulting in a reduced therapeutic effect.

Additionally, certain beverages like coffee, energy drinks, and dark chocolate may interact with specific antibiotics, potentially intensifying their side effects. For instance, ciprofloxacin, a fluoroquinolone antibiotic, can slow down the breakdown of caffeine in the body, leading to stronger caffeine effects such as jitteriness, anxiety, insomnia, or heart palpitations.

Some foods and drinks can also increase the risk of unwanted side effects. Grapefruit and pomelo can interfere with the metabolism of certain medications, including erythromycin, and change the levels of the antibiotic in the blood. With penicillins such as penicillin V and ampicillin, high-acid foods and juices like citrus fruits and tomatoes can affect the stability of the medicine.

High-fiber meals may also affect the timing and absorption of some oral antibiotics. Fiber slows down stomach emptying, potentially delaying the medicine's entry into the bloodstream. However, this does not mean that patients should avoid fibre or nutritious foods. Instead, they should consult their healthcare provider about any dietary restrictions related to their specific antibiotic regimen.

Patients should always follow the specific instructions provided by their healthcare provider regarding the timing and combination of antibiotics with food and drinks. By understanding the specific effects of various medications and foods, patients can maximize the benefits of their antibiotics while minimizing potential risks.