Do Kiwi Juice and Throat Medication Interact? Expert Advice - Pharmacology

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Medication Consultation: Drug Interactions / Kiwi Juice and Throat Inflammation Medications


Hello Pharmacist: Recently, I have been experiencing inflammation with ulceration in my throat, so I visited an ENT specialist.
A few days ago, after taking the anti-inflammatory medication prescribed for my throat inflammation, I drank a glass of kiwi juice (freshly made at home) about 30 minutes later.
I often hear that kiwi juice can help heal oral ulcers, so I would like to ask if drinking kiwi juice just 30 minutes after taking the anti-inflammatory medication could diminish its effectiveness or cause any side effects.
Thank you, Pharmacist.

Lin, 20~29 year old female. Ask Date: 2016/11/06

Dr. Liao Huiling reply Pharmacology


Certain medications are unstable in acidic environments, and co-administration with acidic fruit juices may affect their efficacy.
Since I am unaware of the specific ingredients in the anti-inflammatory medication you are referring to, I cannot provide a definitive answer to your question.

Reply Date: 2016/11/06

More Info


When considering the interaction between kiwi juice and throat medication, it's essential to understand the pharmacological properties of both the medication and the juice. Kiwi juice is rich in vitamin C, antioxidants, and other beneficial compounds that can support immune function and potentially aid in healing. However, it is crucial to evaluate whether it can affect the absorption or efficacy of the medications prescribed for throat inflammation.

Most throat medications, particularly anti-inflammatory or antibiotic medications, are designed to be absorbed in the gastrointestinal tract. The timing of food or drink intake can influence the absorption of certain medications. For instance, some medications may require an empty stomach for optimal absorption, while others can be taken with food or beverages without any issues.

In the case of kiwi juice, it is generally considered safe to consume alongside most medications. However, there are a few considerations to keep in mind:
1. Acidity: Kiwi juice is acidic, which can sometimes affect the absorption of certain medications. If the throat medication you are taking is sensitive to acidic environments, it might be advisable to wait longer than 30 minutes before consuming kiwi juice. However, most common throat medications, such as anti-inflammatories or antibiotics, are not significantly affected by the acidity of foods or drinks.

2. Grapefruit Juice Interaction: While kiwi juice is not known to have the same interaction profile as grapefruit juice, which can inhibit certain liver enzymes (CYP3A4) and affect the metabolism of various medications, it is always wise to check with your healthcare provider or pharmacist about specific medications you are taking. If your throat medication falls into a category that is affected by food or drink, your healthcare provider will provide guidance on the appropriate timing.

3. Individual Variability: Each person's body may react differently to medications and food interactions. If you have a history of gastrointestinal issues or have experienced adverse reactions to medications in the past, it is prudent to be cautious and consult with your healthcare provider.

4. Hydration and Healing: Staying hydrated is essential for recovery from throat inflammation. Kiwi juice can contribute to your fluid intake and provide additional nutrients that may support healing. If you find that kiwi juice soothes your throat and does not cause any discomfort, it can be a beneficial addition to your diet.

In summary, consuming kiwi juice 30 minutes after taking throat medication is unlikely to significantly affect the medication's efficacy or cause adverse effects. However, it is always best practice to consult with your healthcare provider or pharmacist regarding specific medications you are taking to ensure there are no unique interactions or contraindications. If you experience any unusual symptoms after taking the medication and drinking kiwi juice, such as increased throat irritation or gastrointestinal discomfort, seek medical advice promptly.

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