Food and drug interactions How to prevent them

Simple tips can help reduce not only the negative side effects of phytotherapy and drugs and phytotherapy, but also avoid harmful food pairings that can directly damage the mucous membranes of our bodies and cause undesirable adverse negative effects.

It’s not just alcohol, chocolate, or coffee that can cause issues!


The consumption of foods like spinach as well as potato, cauliflower vegetables, vegetable oils and eggs yolk are not suggested for anticoagulants because of their high vitamin K levels, and also the phytotherapies of chestnut and nettle.

Monosodium glutamate

A high dose of monosodium glutamate (the ingredient found in cooking nuts that are commonly used reduces the effect of vasodilators and antihypertensives.

Urinary Infections

In the treatment of urinary tract infections, it is important to be aware that when taking certain drugs, it is crucial to eat protein-rich foods, but avoid dairy products. Avoid citrus fruits as they could hinder or block the efficacy of the drug. In contrast blueberries’ juice prunes, plums and blueberries can increase the potency of the drug.



In the case of tetracyclines, it’s best to stay clear of dairy products and all calcium and iron supplements.


If you are taking cortisone, stay away from sodium-rich foods and alcohol drinks because they can cause irritation to the mucosa of your stomach.


Aspirin should not be taken along with fruit juices that could alter the action of Aspirin as well as with alcohol.


When using bronchodilators and caffeinated drinks, foods or drinks shouldn’t be consumed as they can cause stress to the nervous system of central nerves.



When you are on antibiotics, avoid the intake of solid foods and fatty foods and prefer liquids, such as soups or vegetable soups to limit the impact on the kidneys and liver.


Many anti-inflammatory nonsteroidal drugs are best taken in conjunction along with gastroprotective food items so as to avoid irritating the stomach.

Do not mix these molecules (drugs or other supplements )

Calcium supplements.

Iron supplements.

Some potassium supplements










Kidney problems

In the case of liver disease or kidney disease, pregnancy shouldn’t be taking amino acid or protein supplements.

Synephrine ( maximum daily dosage at 30mg) is not to be used for patients suffering from cardiovasculopathy or hypertension.

Interactions between phytotherapies and food items

Fiber is a supplement to other nutrients.

Fiber supplements can hinder the absorption of certain medications like those used to treat epilepsy. They should not be used for those suffering from lipid or glucose metabolism issues.


Hypericum could affect the effects of other medications, increasing the effectiveness of them or reducing their effect.

Ginko Biloba

When taking anticoagulants, antiplatelet agents or in the course of pregnancy, consumption of supplements that contain Gingko biloba should not be considered.


Liquids speed up the absorption of drugs through stomachs and reduce the interval between ingestion of the substance and onset the effects.

Grapefruit Juice

Grapefruit juice is a source of a substance that blocks the metabolism of certain drugs, and also increases their concentration in plasma. It also interferes with the cytochrome P450 in the gastric mucosathat is which is responsible for catabolism of certain drugs.

Contraceptives should not be taken along with grapefruit juice since it may reduce the effectiveness of the pill.

Do not be associated with:

Calcium channel blockers, (felodipine, nifedipine, nimodipine, verapamil),

With cyclosporine

With antihistamine terfenadine

And estrogen, and consequently the pill.

With caffeine, but not theophylline.

With a few statins

With amiodarone

Carbamazepine and

Some benzodiazepines.

Lemon juice and orange

Orange juice boosts fluoride absorption.

Lemon juice , as well as other citrus fruits high in vitamin C can enhance your absorption of iron the stomach. Therefore, it is beneficial to include vitamin C as well as folate in the iron supplementation to boost absorption.



The foods that can slow down gastric emptying process must be consumed with care and kept away from the consumption of levodopa because they slow its absorption into the intestinal tract. The food items that delay gastric emptying most are fats followed by proteins, carbohydrates and fibers.

The importance of water!

It is essential to drink water when taking medications:

It keeps the drug from adhering to the walls that surrounds the stomach as well as the esophagus. leading to ulceration, particularly anti-inflammatory iron, potassium and potassium.

They permit the drug to be absorbed into in the stomach as well as the intestines in as short a time as they can and dissolve quickly.

It may be beneficial in urinary tract infections as well as stones.

It is nearly never recommended, while ice water can speed up the passage of food of stomach.

Alkaline waters are not advised in the presence of corticosteroids or any other medications that act on the cardiovascular system. However, they are ok with antibiotics.

The interaction between milk products and dairy

Milk can be beneficial in reducing the effects on the stomach of drugs that cause irritation. However, it may hinder the absorption of certain substances like:



Do not use it in conjunction with activated charcoal, whose benefits it can negate because of the increased the rate of intestinal fermentation.

Cola drinks are a great option in the event of chronic vomiting or diarrhea.

Interactions with coffee

Reduces drowsiness that is caused by antihistamines.

Increases the effectiveness of bronchodilators.

Could improve the efficacy of migraine drugs.

Hot drinks reduce absorption and effects.

Do not take medication during treatments to treat hypertension.

Chocolate interactions

It is not recommended for patients of migraine.

The recommended dosage is the cyclosporine.

Reduced in cases that have gastric ulcers.

It appears to increase the effects of last generation antidepressants (SSRI) which act on the serotonin system.

When it comes to treatment with MAO inhibitors, which are used to treat Parkinson’s, it’s not recommended due to its potential hypertensive crisis.

Alcoholic beverages can cause interactions with alcohol.

Alcohol-based drinks aren’t suggested during many pharmacological therapies due to the fact that they:


Increase the irritation-causing effect of anti-inflammatory medicines.

They may serve as stimulants to certain liver enzymes which can cause an increase in the process of transformation of drugs.

Restricts wakefulness through a reduction in reflexes when combined with tranquilizers certain antihistamines, MAO inhibitors.

Birthcontrol pills may enhance the effects of alcohol.

They should not be used in conjunction with anticonvulsant therapy.


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