Skip to main content

Drug Interactions between methoxsalen and st. john's wort

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

Edit list (add/remove drugs)

Interactions between your drugs

Moderate

methoxsalen St. John's wort

Applies to: methoxsalen and st. john's wort

Methoxsalen sensitizes your skin to sunlight, and combining it with other medications that can also have this effect (i.E., photosensitivity) such as St. John's wort 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.

Switch to professional interaction data

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.

Switch to professional interaction data

Moderate

St. John's wort food

Applies to: st. john's wort

While you are taking St. John's wort, you must not eat or drink certain foods and beverages that are high in tyramine. Eating these foods while you are taking St. John's wort can raise your blood pressure to dangerous levels. This may cause life threatening symptoms such as sudden and severe headache, confusion, blurred vision, problems with speech or balance, nausea, vomiting, chest pain, seizure (convulsions), and sudden numbness or weakness (especially on one side of the body). Call your doctor at once if you have any of these symptoms. Foods that are high in tyramine include: air dried meats, aged or fermented meats, sausage or salami, pickled herring, and any spoiled or improperly stored beef, poultry, fish, or liver, red wine, beer from a tap, beer that has not been pasteurize, aged cheeses, including blue, brick, brie, cheddar, parmesan, romano, and swiss, sauerkraut, over the counter supplements or cough and cold medicines that contain tyramine, soy beans, soy sauce, tofu, miso soup, bean curd, fava beans, or yeast extracts (such as Marmite). Caffeine intake should be limited as well. You should avoid or limit the use of alcohol while being treated with St. John's wort. Alcohol can increase the nervous system side effects of St. John's wort such as dizziness, drowsiness, and difficulty concentrating. Some people may also experience impairment in thinking and judgment. Talk to your doctor or pharmacist if you have any questions or concerns.

Switch to professional interaction data

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.

See also

Report options

Loading...
QR code containing a link to this page

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.

Medical Disclaimer