Dietary taboos: 4 foods to avoid with medication

Many people assume that simply taking medication on time is sufficient. However, certain foods can interfere with drugs, reducing their effectiveness, causing severe side effects, or even damaging liver and kidney function. A pharmacist lists 4 common foods that should not be taken with certain medications. Pay close attention.

Even seemingly healthy eating habits can affect how medications work. The following 4 common foods and drinks should never be taken with certain drugs:

1. Grapefruit / Pomelo

Grapefruit and grapefruit juice interfere with liver enzymes responsible for breaking down medications, significantly increasing drug concentrations in the blood and raising the risk of side effects. Pharmacists point out that consuming this fruit with statins (cholesterol-lowering drugs), blood pressure medications, or anti-anxiety drugs can lead to liver damage, muscle damage, or even kidney failure. Additionally, taking the antihistamine "Allegra" (fexofenadine) with grapefruit can reduce its effectiveness. The effect of grapefruit can last up to 24 hours, so even taking the medication at a different time of day may not fully avoid the risk.

2. Leafy Green Vegetables

Leafy greens like kale, spinach, Chinese kale (Gai Lan), and broccoli also require caution. They are rich in Vitamin K, which interferes with the effectiveness of the blood thinner warfarin. Excessive Vitamin K intake can reduce warfarin's efficacy, leading to a risk of blood clots. Patients on blood thinners don't need to completely avoid leafy greens, but should maintain a consistent intake level. Suddenly increasing consumption of kale or spinach could affect blood clotting parameters.

3. Dairy Products

Dairy products like yogurt, milk, and cheese, when taken with fluoroquinolone antibiotics (commonly used for urinary tract and respiratory infections), can bind to the antibiotic in the intestines via calcium, hindering absorption and reducing effectiveness. Patients may find their infection symptoms don't improve. Furthermore, dairy products can also affect the absorption of thyroid medication "levothyroxine" (used for hypothyroidism and thyroid cancer). It is recommended to wait at least 4 hours between taking the medication and consuming dairy.

4. Alcohol

Alcohol, while not a food, deserves attention. Alcohol can have a synergistic effect with sedative medications (such as antihistamines, painkillers, and psychiatric drugs), leading to excessive drowsiness, slow reactions, and potentially fainting. Alcohol also interacts with various other drugs, including arthritis medication, ADHD medication, blood thinners, diabetes medication, high blood pressure medication, and sleeping pills, potentially causing liver damage or heart problems. Taking it with NSAIDs like aspirin or ibuprofen can also damage the stomach lining, increasing the risk of gastric bleeding.

Safe Medication Practice: 3 Tips

A pharmacist team provides the following practical advice to ensure optimal medication efficacy:

• Consult a Professional: Before taking medication, ask your doctor or pharmacist about the correct way to take it – on an empty stomach or with food, whether it can be taken with meals, and which foods or drinks to avoid.
• Consider Timing: Drug absorption can be affected by stomach acidity and food. Some drugs need to be taken on an empty stomach, while others should be taken with food or high-fat meals to improve absorption.
• Establish a Routine: Understand the best timing for taking your medication relative to meals and develop a consistent habit. Use phone reminders to ensure you take it on time, avoiding missed or incorrect doses.

Source: EatingWell

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