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Drug Interactions between M-Phen and methoxsalen

This report displays the potential drug interactions for the following 2 drugs:

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Interactions between your drugs

Moderate

codeine promethazine

Applies to: M-Phen (codeine / phenylephrine / promethazine) and M-Phen (codeine / phenylephrine / promethazine)

Using codeine together with promethazine 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.

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Moderate

promethazine methoxsalen

Applies to: M-Phen (codeine / phenylephrine / promethazine) and methoxsalen

Methoxsalen sensitizes your skin to sunlight, and combining it with other medications that can also have this effect (i.E., photosensitivity) such as promethazine may increase the risk of a severe sunburn. Check with your doctor to see if you should temporarily withhold any of your medications before and after treatment with methoxsalen. Following treatment, you should avoid exposure of the eyes and skin to sunlight or artificial UV rays (e.G., sunlamps or tanning beds ) for at least 24 hours. If sun exposure is unavoidable, you should use suitable covering (e.G., hat and gloves, long-sleeved clothing) or a topical sunscreen (SPF 15 or higher), along with wrap-around UVA- absorbing sunglasses to prevent cataracts, for the 24 hour period following treatment, whether exposed to direct or indirect sunlight in the open or through a window glass. 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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Drug and food interactions

Moderate

methoxsalen food

Applies to: methoxsalen

Methoxsalen should be administered with food or milk. This may make it easier for your body to tolerate the medication. Avoid eating or coming in contact with limes, figs, parsley, parsnips, rue (Ruta graveolens), mustard, carrots and celery. This can increase the risk of photosensitivity and cause your skin to burn more easily. Avoid prolonged exposure to sunlight, sunlamps, or tanning beds. Methoxsalen make your skin more sensitive to sunlight, and a sunburn may result. Wear protective clothing and use a sunscreen if you must be in the sun. Call your doctor if you have severe burning, redness, itching, rash, or swelling after being in the sun.

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Moderate

codeine food

Applies to: M-Phen (codeine / phenylephrine / promethazine)

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.

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Moderate

promethazine food

Applies to: M-Phen (codeine / phenylephrine / promethazine)

Ask your doctor before using promethazine together with ethanol. This can cause uncontrollable movements, agitation, seizures, severe dizziness or fainting, coma, very deep sleep, irregular heartbeats, and high or low body temperature. Use caution when driving, operating machinery, or performing other hazardous activities, these medicaions may cause dizziness or drowsiness. If you experience dizziness or drowsiness, avoid these activities. 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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Moderate

phenylephrine food

Applies to: M-Phen (codeine / phenylephrine / promethazine)

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.

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Therapeutic duplication warnings

No warnings were found for your selected drugs.

Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.


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Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor 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.
Unknown No interaction information available.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.