This medication is used occasionally to help you stay
awake and alert when you are feeling tired and/or drowsy. Caffeine is a
mild stimulant.
This medication should not be used to replace
sleep.
This medication should not be used by children younger
than 12 years old.
Take this product by mouth as directed. Follow all
directions on the product package, or take as directed by your doctor. If
you have any questions, ask your doctor or pharmacist.
This medication should only be used as needed, not on a
regular basis. Though very unlikely, this medication may be habit-forming.
Do not increase your dose, take it more often than directed, or take it
regularly for a long time.
If you suddenly stop using this medication, you may have
withdrawal symptoms (such as headaches, mental/mood changes such as
irritation/nervousness). To help prevent withdrawal, your doctor may lower
your dose slowly. Withdrawal is more likely if you have used caffeine for a
long time or in high doses. Tell your doctor or pharmacist right away if
you have withdrawal.
When used for an extended period, this medication may
not work as well. Talk with your doctor if this medication stops working
well.
Tell your doctor if your condition lasts, gets worse, or
continues to occur again. If you think you may have a serious medical
problem, get medical help right away.
Nausea, vomiting, stomach upset, trouble sleeping, or
increased urination may occur. If any of these effects last or get worse,
tell your doctor or pharmacist promptly.
If your doctor has directed you to use this medication,
remember that your doctor has judged that the benefit to you is greater
than the risk of side effects. Many people using this medication do not
have serious side effects.
Tell your doctor right away if you have any serious side
effects, including:
- dizziness
- mental/mood changes (such as nervousness, agitation)
- shaking (tremor)
- fast/irregular heartbeat
A very serious allergic reaction to this drug 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 caffeine, tell your doctor or pharmacist
if you are allergic to it; or to other xanthine drugs (such as
theophylline); 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.
Before using this medication, tell your doctor or
pharmacist your medical history, especially of:
- heart disease (such as irregular heart rhythm, recent heart
attack)
- high blood pressure
- stomach/intestinal ulcers
- mental/mood disorders (such as anxiety, nervousness)
Before having surgery or certain medical procedures
(such as a heart stress test or a procedure to restore a normal heart
rhythm if you have an unusually fast heartbeat), tell your doctor or
dentist that you use this medication and about all the products you use
(including prescription drugs, nonprescription drugs, and herbal
products).
Older adults may be more sensitive to the side effects
of this drug, especially trouble sleeping.
During pregnancy, this medication should be used only
when clearly needed. Discuss the risks and benefits with your
doctor.
This drug passes into breast milk. 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 products have ingredients that could raise your
heart rate or blood pressure. Tell your pharmacist what products you are
using, and ask how to use them safely (especially cough-and-cold products,
diet aids, or headache medications).
Avoid drinking large amounts of beverages containing
caffeine (coffee, tea, certain sodas) or eating large amounts of chocolate
while taking this medication.
This medication may interfere with certain medical/lab
tests (such as urine VMA/catecholamines levels, dipyridamole-thallium
imaging test), possibly causing false test results. Make sure lab personnel
and all your doctors know you use this drug.
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:
stomach/abdominal pain, mental/mood changes, seizures, fast/irregular
heartbeat.
Keep all medical and lab appointments.
Refer to storage information printed on the package.
Protect from light and moisture. Do not store in the bathroom. If you have
any questions about storage, ask your pharmacist. Keep all medications 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.