Caffeine is used for the relief of temporary tiredness. It helps restore wakefulness or mental alertness.
This medicine may be used to treat other conditions as decided by your doctor.
Take Caffeine exactly as directed by your doctor or according to the instructions on the label. Do not take more or less than instructed by your doctor.
You may take this medicine with or without food. Try to take it at the same time each day.
You may gradually stop taking this medicine when you feel better or when you don’t feel any tiredness or drowsiness.
Take the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and return to your normal dosing schedule.
DO NOT double a dose under any circumstances.
Alert your doctor if you have the following conditions:
- current or history of heart rhythm disorder
- anxiety disorder (mood disorder)
as Caffeine may not be suitable for you.
Do not take this medicine with other medicines that belong to a class known as xanthines, such as theophylline (asthma medicine).
Inform your doctor if you have the following conditions:
- current or history of seizure disorder
- history of ulcer in the stomach, bowel, or oesophagus
- history of GERD or gastroesophageal reflux disease (burning pain in your chest in which food or acid from your stomach backs up into your mouth, leaving a sour or bitter taste)
- high blood pressure
- other heart diseases
- recovering from long-term alcoholism
- kidney disease
- liver disease
Let your doctor know if you are pregnant or breastfeeding.
Be sure to check with your doctor or pharmacist before giving Caffeine to a child. Children may be more sensitive to the side effects.
If you are sensitive to Caffeine or you are not used to taking it, you may be more likely to experience side effects of this medicine.
Caffeine may cause any of the following side effects: headache, stomach problems, increased need to urinate, ringing in the ears, nervousness, anxiety, irritability, difficulty sleeping, involuntary shaking of the hands or legs, rapid breathing, and changes in heartbeat.
Inform your doctor if any of these side effects do not go away or are severe, or if you experience other side effects.
Do not take Caffeine with other medicines that belong to a class of drugs known as xanthines, such as theophylline (asthma medicine).
Inform your doctor and pharmacist if you are taking or using any of these medicines:
- medicines for high blood pressure e.g. metoprolol, atenolol
- medicines to treat depression known as a monoamine oxidase inhibitor (MAOI) e.g. isocarboxazid, phenelzine, tranylcypromine
- medicines for mood disorders e.g. lithium carbonate, clozapine
- medicines used in hospital tests for heart conditions e.g. adenosine, dipyridamole
- medicines for nasal congestion e.g. ephedrine, phenylpropanolamine
- methoxsalen (medicine used to treat a skin condition known as psoriasis)
- phenytoin (medicine for fits or seizure)
- disulfiram (medicine used as an aid in the management of alcohol dependence)
This list does not include all medicines that may interact with Caffeine.
Always notify your doctor and pharmacist if you are taking any other medicines, including herbal tonics such as traditional Chinese medicines, supplements and medicines that you buy without a prescription.
Try to limit your intake of caffeine-containing beverages such as coffee, tea and certain soft drinks. This is because these beverages may increase some of the side effects of this medicine.
Store in a cool, dry place away from the reach of children.
Medicines must not be used past the expiry date.