Codeine/diphenhydramine/phenylephrine and Alcohol/Food Interactions
There are 5 alcohol/food/lifestyle interactions with codeine / diphenhydramine / phenylephrine.
Codeine Caffeine
Moderate Drug Interaction
Using codeine together with diphenhydrAMINE 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 while being treated with these medications. Also avoid activities requiring mental alertness such as driving or operating hazardous machinery until you know how the medications affect you. Talk to your doctor if you have any questions or concerns. 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.
Phenylephrine Caffeine
Moderate Drug Interaction
Both phenylephrine and caffeine can increase blood pressure and heart rate, and combining them may enhance these effects. Talk to your doctor before using these medications, especially if you have a history of high blood pressure or heart disease. You may need a dose adjustment or more frequent monitoring by your doctor to safely use both medications. Contact your doctor if your condition changes or you experience increased side effects. 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.
Codeine Alcohol (Ethanol)
Moderate Drug Interaction
Using codeine together with diphenhydrAMINE 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 while being treated with these medications. Also avoid activities requiring mental alertness such as driving or operating hazardous machinery until you know how the medications affect you. Talk to your doctor if you have any questions or concerns. 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.
Codeine Alcohol (Ethanol)
Moderate Drug Interaction
Do not use alcohol or medications that contain alcohol while you are receiving treatment with codeine. This may increase nervous system side effects such as drowsiness, dizziness, lightheadedness, difficulty concentrating, and impairment in thinking and judgment. In severe cases, low blood pressure, respiratory distress, fainting, coma, or even death may occur. With certain long-acting formulations of narcotic pain medication, consumption of alcohol may also cause rapid release of the drug, resulting in high blood levels that may be potentially lethal. Talk to your doctor or pharmacist if you have questions on how to take this or other medications you are prescribed. Do not use more than the recommended dose of codeine, and avoid activities requiring mental alertness such as driving or operating hazardous machinery until you know how the medication affects you. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medication without first talking to your doctor.
Diphenhydramine Alcohol (Ethanol)
Moderate Drug Interaction
Ask your doctor before using diphenhydrAMINE together with ethanol (alcohol). Use alcohol cautiously. Alcohol may increase drowsiness and dizziness while you are taking diphenhydrAMINE. You should be warned not to exceed recommended dosages and to avoid activities requiring mental alertness. If your doctor prescribes these medications together, you may need a dose adjustment to safely take this combination. 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.
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Codeine/diphenhydramine/phenylephrine drug interactions
There are 696 drug interactions with codeine / diphenhydramine / phenylephrine.
Codeine/diphenhydramine/phenylephrine disease interactions
There are 28 disease interactions with codeine / diphenhydramine / phenylephrine which include:
- depression
- impaired GI motility
- infectious diarrhea
- prematurity
- acute alcohol intoxication
- drug dependence
- hypotension
- intracranial pressure
- respiratory depression
- gastrointestinal obstruction
- cardiovascular disease
- anticholinergic effects
- asthma/COPD
- cardiovascular
- renal/liver disease
- glaucoma
- liver disease
- resp depression
- adrenal insufficiency
- liver disease
- renal dysfunction
- seizure disorders
- urinary retention
- arrhythmias
- biliary tract disease
- BPH
- diabetes
- glaucoma
More about codeine / diphenhydramine / phenylephrine
- Check interactions
- Compare alternatives
- Side effects
- Dosage information
- During pregnancy
- Drug class: upper respiratory combinations
Related treatment guides
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.