[WebMD] Things that may affect your medication use


pill box

Some things don’t go well together

You probably already know that some medications don’t work well together in treatment. But what you’re eating or drinking can also have an impact on different medications. Before you take the medicine for the first time, check with your doctor or pharmacist to make sure there are any precautions not to take.


Halved grapefruit

This citrus fruit changes the way certain types of cells absorb and transport drugs inside your intestines – which can affect more than 50 drugs. In addition, it is possible to create drugs such as fexofenadine (Allegra) for allergies, which are less effective and enhance the action of other substances, such as cholesterol-lowering drugs in the body. body like atorvastatin (Lipitor)


glass milk

This daily use product may make it difficult for your body to absorb certain antibiotics. Minerals in milk like calcium and magnesium are partly to blame, along with casein protein. If you’re taking antibiotics, be sure to learn about the foods and drinks you should stay away from during treatment.


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Some people use licorice as an herbal remedy to aid digestion or as a spice. But glycyrrhizin, a chemical in licorice, can reduce the effects of some drugs, including cyclosporine, which is used to prevent rejection complications in some transplant patients.


dark chocolate

For example, dark chocolate, which can reduce the effects of some sedatives or make it easier to fall asleep, like zolpidem tartrate (Ambien). It may also enhance the effects of certain stimulant drugs, such as methylphenidate (Ritalin). And if you take MAO (Monoamine Oxidase) inhibitors, drugs used to treat depression, chocolate can make your blood pressure dangerously high.

Iron supplements

iron supplement pills

This may decrease the effects of levothyroxine (Synthroid), a form of medicine that gives thyroid hormone to patients who can’t make enough on their own (a condition called hypothyroidism). If you are taking this medicine along with a multivitamin, check to see if the vitamin contains iron. If you need iron supplements, talk to your doctor about taking them and your medications at different times.

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7 ways alcohol affects your anxiety

Alcoholic beverages such as wine and beer reduce or even make some medications less effective, including those used to treat heart disease and blood pressure. In addition, it can make other drugs stronger than usual or cause dangerous side effects


He Drank 47 Cups of Coffee a Day and What Happened Was Beyond Amazing |  Inc.com

Coffee has the ability to attenuate antipsychotic drugs such as lithium and clozapine, but enhances the action and side effects of other drugs. These include medications like aspirin, epinephrine (used to treat severe allergic reactions), and albuterol (used as an inhaler for breathing problems). Besides, coffee can also make it harder for your body to absorb and use iron.


Antihistamines - Community Medicine

These drugs are used for symptoms such as runny nose and sneezing caused by allergies, but some can reduce the effect of medicines that lower blood pressure and increase heart rate. Talk to your doctor to find ways to control allergies if you need to take blood pressure medication.

Antiepileptic Drugs (AEDs)

Reading drug labels

These drugs control seizures in people with epilepsy. But AEDs can make birth control pills less effective at preventing conception, and new research suggests that AEDs can make other medications stronger and potentially cause other serious side effects.

Vitamin K


If you’re taking Warfarin — indicated to treat and prevent blood clots — be wary of how much vitamin K you’re taking in. It can make your ability to reduce blood stasis less effective and put you at higher risk of forming dangerous blood clots. Broccoli, Brussels sprouts, kale, parsley, and spinach are foods high in vitamin K. Try to control how much you eat of these foods each day so your warfarin blood levels stay the same.

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ginseng root tea

Ginseng also reduces the effects of warfarin. In addition, there is an increased risk of internal bleeding if you are taking antiplatelet drugs such as heparin or aspirin, or nonsteroidal anti-inflammatory drugs such as ibuprofen or naproxen. If you are taking MAO inhibitors, ginseng can cause headaches, sleep problems, increased activity, and anxiety.

St John’s Wort

St Johns wart

Sometimes used to help people with depression, this herb is not a proven therapy for this or other health problems. This herb can cause the liver to secrete enzymes (which increase chemical reactions in the body) that weaken certain medications. These include the cholesterol-modifying drug lovastatin (Altoprev and Mevacor), the erectile dysfunction drug sildenafil (Viagra), and digoxin (Lanoxin), used for certain heart conditions.

Ginkgo Biloba (Ginkgo)

Ginkgo biloba plant

Some people use this herb to help prevent high blood pressure, dementia, tinnitus, and other conditions, but there is no evidence for these effects. This herb may decrease the effects of anticonvulsants, including carbamazepine (Carbatrol, Equetro, and Tegretol), and valproic acid (Depakene, Depakote, and Stavzor).

Take medication as directed

Reading drug labels

Only about 50% of medicines are used as prescribed by the doctor. Patients typically just take less than they need, take it any time, or leave a large gap between doses — all of which can reduce the effectiveness of the medication. Make sure you understand your procedure and follow your doctor’s instructions.

Link to original post: https://www.webmd.com/drug-medication/ss/slideshow-affect-medication

Translated by: Quoc Dung

Self-translated article at ykhoa.org, please do not reup!

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