Beverage and supplement interactions with medications

Certain beverages and dietary supplements can interfere with the absorption and effectiveness of various medications. Medical experts and organizations, including the FDA and the NHS, emphasize that the type of liquid used to take pills matters significantly for specific drugs.

For example, bisphosphonates like alendronic acid should not be consumed with mineral water, tea, coffee, fruit juice, or milk, as these can alter the drug's performance. Additionally, caffeine found in tea, coffee, and cola can interfere with medications such as methotrexate.

Green tea also presents potential risks, particularly when consumed in concentrated extract or supplement forms. Research indicates that green tea may reduce the blood levels of nadolol, a heart and blood pressure medication, and could potentially affect levels of atorvastatin, used for cholesterol management. Studies have also suggested that green tea may decrease the body's exposure to raloxifene, a drug used for osteoporosis.

While plain water is generally the safest choice for taking medication when no specific instructions are provided, patients should always follow the guidance on medication packaging or consult a doctor or pharmacist regarding potential dietary interactions.