Does Drinking Unsweetened Tea Affect the Efficacy of PEP Medication? - Internal Medicine

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PEP guitar therapy administration


Hello doctor, I am currently taking PEP (post-exposure prophylaxis) medication.
However, I usually mix it with unsweetened beverages like green tea, black tea, and oolong tea.
Will this affect the effectiveness of the medication? Thank you.

Niming, 30~39 year old female. Ask Date: 2022/09/20

Dr. Liao Zhongxin reply Internal Medicine


1.
Please refer to the Chimei Medical Center's health education information regarding Biktarvy (https://www.chimei.org.tw/main/cmh_department/59012/info/5500/A5500547.html).
A.
If you have liver dysfunction, chronic kidney disease, hepatitis B, or other related conditions, please inform your physician during your visit, so they can assess whether this medication is appropriate for you.
B.
This medication may interact with other drugs, affecting its efficacy.
Please inform your physician or pharmacist about any other medications you are taking, especially antiepileptic drugs, antiarrhythmic medications (such as dofetilide), tuberculosis medications, antidiabetic drugs (such as Metformin), gastrointestinal medications (antacids), multivitamins containing calcium or iron, and St.
John's Wort.
C.
The safety of this medication in pregnant women has not been established; therefore, if you are planning to become pregnant or are already pregnant, please inform your physician during your visit for an assessment of its use.
D.
It is currently uncertain whether this medication is excreted in human breast milk, but public health experts do not recommend that women infected with HIV breastfeed to avoid transmitting the virus to the newborn postpartum.
2.
Currently, no adverse interactions between Biktarvy and other foods or beverages have been reported.

Reply Date: 2022/09/20

More Info


When it comes to the interaction between medications and beverages, particularly in the context of PEP (Post-Exposure Prophylaxis) medications like Biktarvy (which contains bictegravir, emtricitabine, and tenofovir alafenamide), it is essential to consider both the pharmacological properties of the medication and the potential effects of the beverages consumed alongside it.

Based on the information provided, there is currently no evidence to suggest that drinking unsweetened teas—such as green tea, black tea, or oolong tea—negatively impacts the efficacy of PEP medications like Biktarvy. The primary concern with any medication is whether it interacts with other substances, including food and drinks. In the case of Biktarvy, it has been noted that there are no significant adverse interactions reported with these types of beverages. However, it is always prudent to consult with a healthcare provider regarding any specific concerns or conditions that may affect medication absorption or efficacy.

Tea, particularly green tea, is often praised for its health benefits due to its high antioxidant content, which may even provide some supportive health effects. However, it is important to note that certain compounds in tea, such as tannins, can sometimes interfere with the absorption of specific medications. In the case of Biktarvy, there is no specific evidence indicating that these compounds would significantly alter its effectiveness. Nevertheless, if you have any underlying health conditions, such as liver or kidney issues, or if you are taking other medications, it is crucial to inform your healthcare provider, as these factors could influence how well the PEP medication works.

Additionally, while unsweetened tea is generally a healthy choice, it is essential to maintain adequate hydration, especially when taking medications. Drinking sufficient water is vital for overall health and can help facilitate the absorption of medications. If you find that you are consuming tea in place of water, consider balancing your intake with plain water to ensure optimal hydration.

In summary, drinking unsweetened tea while on PEP medication like Biktarvy is unlikely to affect its efficacy significantly. However, it is always best to maintain open communication with your healthcare provider about your dietary habits and any concerns you may have regarding your medication regimen. If you experience any unusual symptoms or side effects, or if you have specific questions about your treatment plan, do not hesitate to reach out for professional advice. Your health and safety should always come first, and your healthcare provider can offer personalized guidance based on your individual circumstances.

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