Side Effects of Raspberry Tea

A cup of raspberry herbal tea on an outdoor table.
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The raspberry, a red, purple or black fruit used in tea, enjoys a certain popularity as a result of its antioxidant effects against cancer. The raspberry fruit, also known as raspbis, red raspberry, rubus, rubus strigosus, hindberry, bramble and framboise, grows in any high-moisture soil. This berry also helps in weight loss, acting as an appetite suppressant. states that the raspberry also may aid fertility. The FDA has not approved raspberry tea as a medicine, and you should speak with a doctor before using it. Side effects can occur when drinking this herbal tea.

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Drug Interactions

If you take quinidine for a heart arrhythmia, raspberry tea may speed up and increase its effects within your kidneys, states. This will produce a higher serum level of quinidine in lab tests. Before drinking raspberry tea, to talk to your doctor and obtain medical advice.


Loose Stools

Irritation can occur in your intestinal lining from the natural ingredients in tea, indicates. These natural ingredients include folic acid, iron, calcium and vitamin C. The loose stools may occur for a couple of days when you start drinking raspberry tea. If this side effect continues, you should stop drinking this herbal supplement tea and seek counsel from a physician.

Nausea and Vomiting

Again, because of the natural mineral and vitamin ingredients in raspberry tea, you may experience nausea and its attendant vomiting as side effects, reports. An irritated stomach lining can cause you to feel nauseated and possibly vomit. In order to stop these side effects, you may need to stop drinking the tea if the nausea and vomiting do not subside.


Low Blood Pressure reports that low blood pressure may occur when drinking this tea. You may recognize hypotension by such indicators as feeling weak, dizzy or light-headed. You should lie down and rest while experiencing this side effect. You will need to consult your physician regarding any lightheadedness and dizziness associated with drinking raspberry tea. Drinking other fluids that contain salt can raise your pressure. Eating a salty snack such as chips also may produce a higher blood pressure because of the high salt ingredient.

Dark Stools

Your stools may appear darker when drinking this tea, reports. This side effect occurs because of the ingredients of iron and folic acid in raspberry tea. If you notice blood in your stools, report it to your doctor immediately as it may be a sign of a serious gastrointestinal problem.