Green tea contains caffeine and it has been used to
increase alertness. Green tea has also been used to reduce the risk of
cancer, to lower cholesterol, and to reduce the risk or delay Parkinson's
disease.
Some herbal/diet supplement products have been found to
contain possibly harmful impurities/additives. Check with your pharmacist
for more details regarding the particular brand you use.
The FDA has not reviewed this product for safety or
effectiveness. Consult your doctor or pharmacist for more
details.
Take this product by mouth as directed. Follow all
directions on the product package. If you have any questions, ask your
doctor or pharmacist.
If you suddenly stop using this medication, you may have
withdrawal symptoms (such as headache, mental/mood changes such as
irritability/nervousness). To help prevent withdrawal, your doctor may
lower your dose slowly. Withdrawal is more likely if you have used green
tea for a long time or in high doses. Tell your doctor or pharmacist right
away if you have withdrawal.
This product can decrease the amount of iron you get
from food/supplements. If you have low iron levels, do not take green tea
with meals or iron supplements. Take this product between
meals.
If your condition lasts or gets worse, or if you think
you may have a serious medical problem, get medical help right
away.
Nausea, diarrhea, upset stomach, headache, and dizziness
may occur. If any of these effects last or get worse, contact your doctor
promptly.
Tell your doctor right away if you have any serious side
effects, including:
- fast/irregular heartbeat
- mental/mood changes (such as nervousness, confusion)
- trouble sleeping
- restlessness
- shakiness (tremor)
- seizures
- signs of liver problems (such as nausea/vomiting that doesn't
stop, loss of appetite, stomach/abdominal pain, yellowing eyes/skin, dark
urine)
A very serious allergic reaction to this product is
rare. However, get medical help right away if you notice any symptoms of a
serious allergic reaction, including:
- rash
- itching/swelling (especially of the face/tongue/throat)
- severe dizziness
- trouble breathing
This is not a complete list of possible side effects. If
you notice other effects not listed above, contact your doctor or
pharmacist.
In the US - Call your doctor for medical advice about side effects.
You may report side effects to FDA at 1-800-FDA-1088 or at
www.fda.gov/medwatch.
In Canada - Call your doctor for medical advice about
side effects. You may report side effects to Health Canada at
1-866-234-2345.
Before taking green tea, tell your doctor or pharmacist
if you are allergic to it; or if you have any other allergies. This product
may contain inactive ingredients, which can cause allergic reactions or
other problems. Talk to your pharmacist for more details.
If you have any of the following health problems,
consult your doctor or pharmacist before using this
product:
- anemia (iron deficiency anemia)
- bleeding problems
- diabetes
- a certain eye condition (glaucoma)
- heart problems (such as irregular heartbeat, recent heart
attack)
- stomach/intestinal problems (such as ulcers, reflux
disease-GERD)
- liver problems
- mental/mood disorder (such as anxiety, panic attacks)
- low levels of calcium in the blood
- bone problems such as osteoporosis
Liquid preparations of this product may contain sugar
and/or alcohol. Caution is advised if you have diabetes, alcohol
dependence, or liver disease. Ask your doctor or pharmacist about using
this product safely.
Children may be more sensitive to the side effects of
this product, especially the effects of caffeine in this
product.
During pregnancy, consult your doctor before using this
product. Green tea contains caffeine. It is recommended that women limit
caffeine during pregnancy. This product may also decrease folic acid.
Discuss the risks and benefits with your doctor.
This product may pass into breast milk and have
undesirable effects on a nursing infant. Consult your doctor before
breastfeeding.
Drug interactions may change how your medications work
or increase your risk for serious side effects. This document does not
contain all possible drug interactions. Keep a list of all the products you
use (including prescription/nonprescription drugs and herbal products) and
share it with your doctor and pharmacist. Do not start, stop, or change the
dosage of any medicines without your doctor's approval.
Some drugs that may interact with this product
are:
- "blood thinners" (such as warfarin)
- theophylline
Check the labels on all your medicines (such as
cough-and-cold products, diet aids, headache medicines) because they may
contain caffeine or other stimulants (such as ephedra/ma huang,
phenylpropanolamine) that could increase your heart rate or blood pressure.
Ask your pharmacist about using those products safely.
While taking this product, avoid drinking large amounts
of beverages containing caffeine (such as coffee, tea, certain soft drinks)
or eating large amounts of chocolate.
This product may interfere with certain medical/lab
tests (such as chemical stress tests using adenosine/dipyridamole, urine
tests for calcium/catecholamines, lung function test), possibly causing
false test results. Make sure lab personnel and all your doctors know you
use this product.
If someone has overdosed and has serious symptoms such
as passing out or trouble breathing, call 911. Otherwise, call a poison
control center right away. US residents can call 1-800-222-1222. Canada
residents can call 1-844-764-7669. Symptoms of overdose may include:
seizures, irregular heartbeat.
Keep all medical and lab appointments.
If you miss a dose, take it as soon as you remember. If
it is near the time of the next dose, skip the missed dose. Take your next
dose at the regular time. Do not double the dose to catch
up.
Refer to storage information printed on the package. If
you have any questions about storage, ask your pharmacist. Keep all
medications and herbal products away from children and
pets.
Do not flush medications down the toilet or pour them
into a drain unless instructed to do so. Properly discard this product when
it is expired or no longer needed. Consult your pharmacist or local waste
disposal company.