Drug Interactions between Norgesic and tizanidine
This report displays the potential drug interactions for the following 2 drugs:
- Norgesic (aspirin/caffeine/orphenadrine)
- tizanidine
Interactions between your drugs
caffeine tiZANidine
Applies to: Norgesic (aspirin / caffeine / orphenadrine) and tizanidine
Caffeine may significantly increase the blood levels and effects of tiZANidine in some patients. This may cause blood pressure to fall excessively, especially when you rise from a sitting or lying position. The risk of other side effects such as drowsiness, dizziness, lightheadedness, fainting, and irregular heart rhythm may also increase. Talk to your doctor if you have any questions or concerns. Your doctor may be able to prescribe alternatives that do not interact, or you may need a dose adjustment or more frequent monitoring to safely use both medications. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
orphenadrine tiZANidine
Applies to: Norgesic (aspirin / caffeine / orphenadrine) and tizanidine
Using tiZANidine together with orphenadrine may increase side effects such as dizziness, drowsiness, confusion, and difficulty concentrating. Some people, especially the elderly, may also experience impairment in thinking, judgment, and motor coordination. You should avoid or limit the use of alcohol during treatment. In addition, these medications may also have additive effects in lowering your blood pressure. You may experience headache, dizziness, lightheadedness, fainting, and/or changes in pulse or heart rate. These side effects are most likely to be seen at the beginning of treatment, following a dose increase, or when treatment is restarted after an interruption. Let your doctor know if you develop these symptoms and they do not go away after a few days or they become troublesome. Avoid driving or operating hazardous machinery until you know how the medications affect you, and use caution when getting up from a sitting or lying position. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
aspirin caffeine
Applies to: Norgesic (aspirin / caffeine / orphenadrine) and Norgesic (aspirin / caffeine / orphenadrine)
Information for this minor interaction is available on the professional version.
Drug and food interactions
orphenadrine food
Applies to: Norgesic (aspirin / caffeine / orphenadrine)
Alcohol can increase the nervous system side effects of orphenadrine such as dizziness, drowsiness, and difficulty concentrating. Some people may also experience impairment in thinking and judgment. You should avoid or limit the use of alcohol while being treated with orphenadrine. Do not use more than the recommended dose of orphenadrine, and avoid activities requiring mental alertness such as driving or operating hazardous machinery until you know how the medication affects you. Talk to your doctor or pharmacist if you have any questions or concerns.
aspirin food
Applies to: Norgesic (aspirin / caffeine / orphenadrine)
Ask your doctor before using aspirin together with ethanol. Do not drink alcohol while taking aspirin. Alcohol can increase your risk of stomach bleeding caused by aspirin. Call your doctor at once if you have symptoms of bleeding in your stomach or intestines. This includes black, bloody, or tarry stools, or coughing up blood or vomit that looks like coffee grounds. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
caffeine food
Applies to: Norgesic (aspirin / caffeine / orphenadrine)
Information for this minor interaction is available on the professional version.
aspirin food
Applies to: Norgesic (aspirin / caffeine / orphenadrine)
Information for this minor interaction is available on the professional version.
Therapeutic duplication warnings
Therapeutic duplication is the use of more than one medicine from the same drug category or therapeutic class to treat the same condition. This can be intentional in cases where drugs with similar actions are used together for demonstrated therapeutic benefit. It can also be unintentional in cases where a patient has been treated by more than one doctor, or had prescriptions filled at more than one pharmacy, and can have potentially adverse consequences.
Muscle relaxants
Therapeutic duplication
The recommended maximum number of medicines in the 'muscle relaxants' category to be taken concurrently is usually one. Your list includes two medicines belonging to the 'muscle relaxants' category:
- Norgesic (aspirin/caffeine/orphenadrine)
- tizanidine
Note: In certain circumstances, the benefits of taking this combination of drugs may outweigh any risks. Always consult your healthcare provider before making changes to your medications or dosage.
See also
Drug Interaction Classification
Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit. | |
Moderately clinically significant. Usually avoid combinations; use it only under special circumstances. | |
Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan. | |
No interaction information available. |
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
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