home page	table of contents	supplements & herbs	vitamins & minerals	drug depletion table
interactions	mindfulness meditation	health as vitality	healthcare news & views	contact

saint johns wort (hypericum)	ABACAVIR	St. John's Wort has been reported to interact with the antiretroviral medications that are used to suppress HIV. This interaction could reduce the effectiveness of the antiretroviral medication. It is recommended to avoid this combination.
saint johns wort (hypericum)	ALPRAZOLAM	The active ingredient in St. john's Wort is hypericum and it binds to a receptor site used by the anti-anxiety medications called the benzodiazepines. The combined use of this herb and drug diminishes the effect of both.
saint johns wort (hypericum)	AMPRENAVIR	St. John's Wort has been reported to interact with the antiretroviral medications that are used to suppress HIV. This interaction could reduce the effectiveness of the antiretroviral medication. It is recommended to avoid this combination.
saint johns wort (hypericum)	CITALOPRAM HYDROBROMIDE	The active ingredient in St. John's Wort is hypericum and it binds to a receptor site used by the anti-anxiety medications called the benzodiazepines. The combined use of this herb and drug diminishes the effect of both.
saint johns wort (hypericum)	CITALOPRAM HYDROBROMIDE	5-hydroxytryptophan promotes serotonin levels in the brain. The selective serotonin- reuptake inhibitors SSRIs), such as citalopram also known as Celexa@, act to increase serotonin levels. The simultaneous use of both could raise serotonin levels too high and trigger a potentially fatal chain of reactions called serotonin syndrome (SS). SS is rare. Serious complications include seizures, abnormal blood clotting and bleeding, respiratory failure, severe high fever, and death.
saint johns wort (hypericum)	CLORAZEPATE DIPOTASSIUM	The active ingredient in St. john's Wort is hypericum and it binds to a receptor site used by the anti-anxiety medications called the benzodiazepines. The combined use of this herb and drug diminishes the effect of both.
saint johns wort (hypericum)	CLORAZEPATE DIPOTASSIUM	The active ingredient in St. john's Wort is hypericum and it binds to a receptor site used by the anti-anxiety medications called the benzodiazepines. The combined use of this herb and drug diminishes the effect of both.
saint johns wort (hypericum)	DELAVIRDINE MESYLATE	St. John's Wort has been reported to interact with the antiretroviral medications that are used to suppress HIV. This interaction could reduce the effectiveness of the antiretroviral medication. It is recommended to avoid this combination.
saint johns wort (hypericum)	DIAZEPAM	The active ingredient in St. john's Wort is hypericum and it binds to a receptor site used by the anti-anxiety medications called the benzodiazepines. The combined use of this herb and drug diminishes the effect of both.
saint johns wort (hypericum)	DICUMAROL	The active ingredient in St. John's Wort is hypericum. This competes with the coumarin anticoagulants, like dicumarol, and diminishes the therapeutic effect of the later. This could result in blood clotting and emboli.
saint johns wort (hypericum)	DIDANOSINE	St. John's Wort has been reported to interact with the antiretroviral medications that are used to suppress HIV. This interaction could reduce the effectiveness of the antiretroviral medication. It is recommended to avoid this combination.
saint johns wort (hypericum)	DIDANOSINE	St. John's Wort has been reported to interact with the antiretroviral medications that are used to suppress HIV. This interaction could reduce the effectiveness of the antiretroviral medication. It is recommended to avoid this combination.
saint johns wort (hypericum)	DIGOXIN	The active ingredient in St. John's Wort is hypericum. It interacts with and decreases the effect of the cardiac glycoside drugs like digoxin. The cardiac glycoside drugs increase the force and velocity of the heart muscle contraction and slows down a heart rate that is to fast to allow for proper filling of the heart between contractions. Combined use of this herb and drug is to be avoided.
saint johns wort (hypericum)	EFAVIRENZ	St. John's Wort has been reported to interact with the antiretroviral medications that are used to suppress HIV. This interaction could reduce the effectiveness of the antiretroviral medication. It is recommended to avoid this combination.
saint johns wort (hypericum)	ESCITALOPRAM OXALATE	The active ingredient in St. John's Wort is hypericum. This may promote serotonin levels in the brain. The selective serotonin- reuptake inhibitors SSRIs), such as escitalopram also known as Lexapro@, act to increase serotonin levels. The simultaneous use of both could raise serotonin levels too high and trigger a potentially fatal chain of reactions called serotonin syndrome (SS). SS is rare. Serious complications include seizures, abnormal blood clotting and bleeding, respiratory failure, severe high fever, and death.
saint johns wort (hypericum)	ESTAZOLAM	The active ingredient in St. john's Wort is hypericum and it binds to a receptor site used by the anti-anxiety medications called the benzodiazepines. The combined use of this herb and drug diminishes the effect of both.
saint johns wort (hypericum)	FLUOXETINE HYDROCHLORIDE	5-hydroxytryptophan promotes serotonin levels in the brain. The selective serotonin- reuptake inhibitors SSRIs), such as fluoxetine also known as Prozac@, act to increase serotonin levels. The simultaneous use of both could raise serotonin levels too high and trigger a potentially fatal chain of reactions called serotonin syndrome (SS). SS is rare. Serious complications include seizures, abnormal blood clotting and bleeding, respiratory failure, severe high fever, and death.
saint johns wort (hypericum)	FLURAZEPAM HYDROCHLORIDE	The active ingredient in St. john's Wort is hypericum and it binds to a receptor site used by the anti-anxiety medications called the benzodiazepines. The combined use of this herb and drug diminishes the effect of both.
saint johns wort (hypericum)	FLUVOXAMINE MALEATE	The active ingredient in St. John's Wort is hypericum. This may promote serotonin levels in the brain. The selective serotonin- reuptake inhibitors SSRIs), such as fluvoxamine, act to increase serotonin levels. The simultaneous use of both could raise serotonin levels too high and trigger a potentially fatal chain of reactions called serotonin syndrome (SS). SS is rare. Serious complications include seizures, abnormal blood clotting and bleeding, respiratory failure, severe high fever, and death.
saint johns wort (hypericum)	HYDROCHLOROTHIAZIDE	Saint John's Wort is a photosensitizing herb. It is the furanocoumarins found often in umbelliferae resembling psoralens that cause this effect. Photosensitizing means the skin will be more sensitive to the effects of the sun. This effect is compounded if this herb is taken simultaneously with a photosensitizing drug like hydrochlorothiazide (HCT). Avoid the combined use of these or avoid the sun if taken together.
saint johns wort (hypericum)	INDINAVIR SULFATE	St. John's Wort has been reported to interact with the antiretroviral medications that are used to suppress HIV. This interaction could reduce the effectiveness of the antiretroviral medication. It is recommended to avoid this combination.
saint johns wort (hypericum)	LAMIVUDINE	St. John's Wort has been reported to interact with the antiretroviral medications that are used to suppress HIV. This interaction could reduce the effectiveness of the antiretroviral medication. It is recommended to avoid this combination.
saint johns wort (hypericum)	LAMIVUDINE	St. John's Wort has been reported to interact with the antiretroviral medications that are used to suppress HIV. This interaction could reduce the effectiveness of the antiretroviral medication. It is recommended to avoid this combination.
saint johns wort (hypericum)	LOPINAVIR	St. John's Wort has been reported to interact with the antiretroviral medications that are used to suppress HIV. This interaction could reduce the effectiveness of the antiretroviral medication. It is recommended to avoid this combination.
saint johns wort (hypericum)	LORAZEPAM	The active ingredient in St. john's Wort is hypericum and it binds to a receptor site used by the anti-anxiety medications called the benzodiazepines. The combined use of this herb and drug diminishes the effect of both.
saint johns wort (hypericum)	MIDAZOLAM HYDROCHLORIDE	The active ingredient in St. john's Wort is hypericum and it binds to a receptor site used by the anti-anxiety medications called the benzodiazepines. The combined use of this herb and drug diminishes the effect of both. Midazolam is an injection medication used to sedate for medical procedures and surgery. Be sure to tell all medical personnel if you are taking St. John's Wort.
saint johns wort (hypericum)	NEFAZODONE HYDROCHLORIDE	The active ingredient in St. John's Wort is hypericum. This may promote serotonin levels in the brain. The selective serotonin- reuptake inhibitors SSRIs), such as nefazodone, act to increase serotonin levels. The simultaneous use of both could raise serotonin levels too high and trigger a potentially fatal chain of reactions called serotonin syndrome (SS). SS is rare. Serious complications include seizures, abnormal blood clotting and bleeding, respiratory failure, severe high fever, and death.
saint johns wort (hypericum)	NELFINAVIR MESYLATE	St. John's Wort has been reported to interact with the antiretroviral medications that are used to suppress HIV. This interaction could reduce the effectiveness of the antiretroviral medication. It is recommended to avoid this combination.
saint johns wort (hypericum)	NEVIRAPINE	St. John's Wort has been reported to interact with the antiretroviral medications that are used to suppress HIV. This interaction could reduce the effectiveness of the antiretroviral medication. It is recommended to avoid this combination.
saint johns wort (hypericum)	OXAZEPAM	The active ingredient in St. john's Wort is hypericum and it binds to a receptor site used by the anti-anxiety medications called the benzodiazepines. The combined use of this herb and drug diminishes the effect of both.
saint johns wort (hypericum)	PAROXETINE HYDROCHLORIDE	The active ingredient in St. John's Wort is hypericum. This may promote serotonin levels in the brain. The selective serotonin- reuptake inhibitors SSRIs), such as paroxetine also known as Paxil@, act to increase serotonin levels. The simultaneous use of both could raise serotonin levels too high and trigger a potentially fatal chain of reactions called serotonin syndrome (SS). SS is rare. Serious complications include seizures, abnormal blood clotting and bleeding, respiratory failure, severe high fever, and death.
saint johns wort (hypericum)	PHENELZINE	The active ingredient in St. John's Wort is hypericum. This may promote serotonin levels in the brain and is considered a serotonergic substance. The monoamine oxidase inhibitors (MAOIs), such as phenelzine, can interact with serotonergic substances and drugs and trigger a serotonin syndrome (SS). SS is rare. Serious complications include seizures, abnormal blood clotting and bleeding, respiratory failure, severe high fever, and death.
saint johns wort (hypericum)	QUAZEPAM	The active ingredient in St. john's Wort is hypericum and it binds to a receptor site used by the anti-anxiety medications called the benzodiazepines. The combined use of this herb and drug diminishes the effect of both.
saint johns wort (hypericum)	RITONAVIR	St. John's Wort has been reported to interact with the antiretroviral medications that are used to suppress HIV. This interaction could reduce the effectiveness of the antiretroviral medication. It is recommended to avoid this combination.
saint johns wort (hypericum)	SAQUINAVIR	St. John's Wort has been reported to interact with the antiretroviral medications that are used to suppress HIV. This interaction could reduce the effectiveness of the antiretroviral medication. It is recommended to avoid this combination.
saint johns wort (hypericum)	SERTRALINE HYDROCHLORIDE	The active ingredient in St. John's Wort is hypericum. This may promote serotonin levels in the brain. The selective serotonin- reuptake inhibitors SSRIs), such as sertraline also known as Zoloft@, act to increase serotonin levels. The simultaneous use of both could raise serotonin levels too high and trigger a potentially fatal chain of reactions called serotonin syndrome (SS). SS is rare. Serious complications include seizures, abnormal blood clotting and bleeding, respiratory failure, severe high fever, and death.
saint johns wort (hypericum)	STAVUDINE	St. John's Wort has been reported to interact with the antiretroviral medications that are used to suppress HIV. This interaction could reduce the effectiveness of the antiretroviral medication. It is recommended to avoid this combination.
saint johns wort (hypericum)	TEMAZEPAM	The active ingredient in St. john's Wort is hypericum and it binds to a receptor site used by the anti-anxiety medications called the benzodiazepines. The combined use of this herb and drug diminishes the effect of both.
saint johns wort (hypericum)	TENOFOVIR	St. John's Wort has been reported to interact with the antiretroviral medications that are used to suppress HIV. This interaction could reduce the effectiveness of the antiretroviral medication. It is recommended to avoid this combination.
saint johns wort (hypericum)	THYAZIDE DIURETICS	St. John's Wort is a photosensitizing herb. Photosensitizing means the skin will be more sensitive to the effects of the sun. This effect is compounded if this herb is taken simultaneously with a photosensitizing drug like hydrochlorothiazide (HCT). Avoid the combined use of these or avoid the sun if taken together. The thyazide diuretics includes bendroflumethiazide, chlorothiazide, chlorthalidone, hydrochlorothiazide, hydroflumethiazide, indapamide, methyclothiazide, metolazone, polythiazide, and trichlormethiazide.
saint johns wort (hypericum)	TRANYLCYPROMINE	The active ingredient in St. John's Wort is hypericum. This may promote serotonin levels in the brain and is considered a serotonergic substance. The monoamine oxidase inhibitors (MAOIs), such as phenelzine, can interact with serotonergic substances and drugs and trigger a serotonin syndrome (SS). SS is rare. Serious complications include seizures, abnormal blood clotting and bleeding, respiratory failure, severe high fever, and death.
saint johns wort (hypericum)	TRAZODONE HYDROCHLORIDE	The active ingredient in St. John's Wort is hypericum. This may promote serotonin levels in the brain. The selective serotonin- reuptake inhibitors SSRIs), such as trazodone, act to increase serotonin levels. The simultaneous use of both could raise serotonin levels too high and trigger a potentially fatal chain of reactions called serotonin syndrome (SS). SS is rare. Serious complications include seizures, abnormal blood clotting and bleeding, respiratory failure, severe high fever, and death.
saint johns wort (hypericum)	TRIAZOLAM	The active ingredient in St. john's Wort is hypericum and it binds to a receptor site used by the anti-anxiety medications called the benzodiazepines. The combined use of this herb and drug diminishes the effect of both.
saint johns wort (hypericum)	WARFARIN SODIUM	The active ingredient in St. John's Wort is hypericum. This competes with the coumarin anticoagulants, like warfarin, and diminishes the therapeutic effect of the later. This occurs through hepatic induction thus decreasing needed enzyme bioavailablity. This could result in further blood clotting and potential emboli.
saint johns wort (hypericum)	ZALCITABINE	St. John's Wort has been reported to interact with the antiretroviral medications that are used to suppress HIV. This interaction could reduce the effectiveness of the antiretroviral medication. It is recommended to avoid this combination.
saint johns wort (hypericum)	ZIDOVUDINE	St. John's Wort has been reported to interact with the antiretroviral medications that are used to suppress HIV. This interaction could reduce the effectiveness of the antiretroviral medication. It is recommended to avoid this combination.
senna	ADENOSINE	Senna is an herb with a cathartic laxative action. This action can lead to depletion of potassium. Low potassium levels can increase the occurrence of cardiac arrhythmias (irregular, often rapid heart beat). This herb could diminish the effect if you are given medication, like adenosine, in an ER to correct a cardiac arrhythmia.
senna	AMIODARONE HYDROCHLORIDE	Senna is an herb with a cathartic laxative action. This action can lead to depletion of potassium. Low potassium levels can increase the occurrence of cardiac arrhythmias (irregular, often rapid heart beat). This herb should be taken cautiously if you are taking medication, like amiodarone, to correct or control an underlying cardiac arrhythmia.
senna	BRETYLIUM TOSYLATE	Senna is an herb with a cathartic laxative action. This action can lead to depletion of potassium. Low potassium levels can increase the occurrence of cardiac arrhythmias (irregular, often rapid heart beat). This herb could diminish the effect if you are given medication, like bretylium, in an ER to correct a lethal cardiac arrhythmia.
senna	CORTICOSTEROIDS	Senna may cause increased side effects of depletion of potassium and possible fluid imbalances if taken with the oral corticosteroids. Oral corticosteroids includes betamethasone, cortisone, dexamethasone, fludrocortisone, hydrocortisone, prednisolone, and prednisone.
senna	DIGOXIN	Senna is an herb with a cathartic laxative action. This action can lead to depletion of potassium. Low potassium levels can increase the occurrence of cardiac arrhythmias (irregular, often rapid heart beat). This herb should be taken cautiously if you are taking medication, like digoxin, to correct or control an underlying cardiac arrhythmia rapid heart beat.
senna	FLECAINIDE ACETATE	Senna is an herb with a cathartic laxative action. This action can lead to depletion of potassium. Low potassium levels can increase the occurrence of cardiac arrhythmias (irregular, often rapid heart beat). This herb should be taken cautiously if you are taking medication, like flecanide, to correct or control an underlying cardiac arrhythmia.
senna	LIDOCAINE HYDROCHLORIDE	Senna is an herb with a cathartic laxative action. This action can lead to depletion of potassium. Low potassium levels can increase the occurrence of cardiac arrhythmias (irregular, often rapid heart beat). This herb could diminish the effect if you are given medication, like lidocaine, in an ER to correct a lethal cardiac arrhythmia.
senna	PROCAINAMIDE HYDROCHLORIDE	Senna is an herb with a cathartic laxative action. This action can lead to depletion of potassium. Low potassium levels can increase the occurrence of cardiac arrhythmias (irregular, often rapid heart beat). This herb could diminish the effect if you are given medication, like procainamide, in an ER to correct a lethal cardiac arrhythmia.
senna	QUINIDINE	Senna is an herb with a cathartic laxative action. This action can lead to depletion of potassium. Low potassium levels can increase the occurrence of cardiac arrhythmias (irregular, often rapid heart beat). This herb should be taken cautiously if you are taking medication, like quinidine, to correct or control an underlying cardiac arrhythmia.
slippery elm	MOST DRUGS	Slippery elm is a high fiber herb and when taken simultaneously with a drug(s) and/or mineral, can decrease the absorption of these. Avoid taking together.
soy	ESTROGENS	Soy has plant based estrogens called phytoestrogens. It may enhance the estrogen effect if taken along with estrogen replacement therapy.
spinach	WARFARIN SODIUM	Spinach as an herbal concentrate and also eaten as food can produce an opposition in the activity of warfarin. This occurs because spinach is usually rich in vitamin K. This opposition creates a decrease in therapeutic effectiveness and potential for increased clotting.
tansy	ACETAMINOPHEN	Tansy is an herb considered to have a potential to stress the liver and cause damage (hepatotoxic). On it's own, this would more than likely be rare unless severe liver inflammation and/or damage already existed. Acetominophen has a hepatotoxic potential, particularly in patients with active hepatitis. Avoid the combination of these two substances.
tansy	ALCOHOL	Alcohol is an herb considered to have a potential to stress the liver and cause damage (hepatotoxic). On it's own, this would more than likely be rare unless severe liver inflammation and/or damage already existed. Alcohol is hepatotoxic and should be avoided if taking borage.
tansy	BARBITURATES	Tansy is a thujone-containing herb that can decrease the therapeutic effect of anticonvulsant drugs like the barbiturates. It is theorized that it can decrease the seizure threshold. This class of anticonvulsant includes mephobarbital, phenobarbital, primidone.
tansy	BENZODIAZEPINES	Tansy is a thujone-containing herb that can decrease the therapeutic effect of anticonvulsant drugs like the benzodiazpines. It is theorized that it can decrease the seizure threshold. This one drug in this class used as an anticonvulsant is clonazepam.
tansy	CLARITHROMYCIN	Tansy is an herb considered to have a potential to stress the liver and cause damage (hepatotoxic). On it's own, this would more than likely be rare unless severe liver inflammation and/or damage already existed in combination with other hepatotoxic substances can cause liver inflammation. Clarithromycin, in combination with other hepatotoxic substances, can cause liver inflammation.
tansy	ERYTHROMYCIN	Tansy is an herb considered to have a potential to stress the liver and cause damage (hepatotoxic). On it's own, this would more than likely be rare unless severe liver inflammation and/or damage already existed. Erythromycin, in combination with other hepatotoxic substances, can cause liver inflammation.
tansy	HYDANTOINS	Tansy is a thujone-containing herb that can decrease the therapeutic effect of anticonvulsant drugs like the hydantions. It is theorized that it can decrease the seizure threshold. This class of anticonvulsant includes ethotoin, phenytoin.
tansy	ISONIAZID	Tansy is an herb considered to have a potential to stress the liver and cause damage (hepatotoxic). On it's own, this would more than likely be rare unless severe liver inflammation and/or damage already existed. Isoniazide, a drug used to treat tuberculosis, is considered to have a hepatotoxic potential. Avoid the combination of these two substances.
tansy	METHOTREXATE SODIUM	Tansy is an herb considered to have a potential to stress the liver and cause damage (hepatotoxic). On it's own, this would more than likely be rare unless severe liver inflammation and/or damage already existed. Methotrexate is a cancer chemotherapeutic agent that has other uses such as in rheumatoid arthritis or severe psoriasis. It is a drug that has a high hepatotoxic potential particularly if used for a long duration of time. Avoid this combination of substances.
tansy	METHYLDOPA	Tansy is an herb considered to have a potential to stress the liver and cause damage (hepatotoxic). On it's own, this would more than likely be rare unless severe liver inflammation and/or damage already existed. Methyldopa is and older antihypertensive that can be hepatotoxic, particularly in women. Avoid this combination.
tansy	MISCELLANEOUS ANTICONVULSANTS	Tansy is a thujone-containing herb that can decrease the therapeutic effect of anticonvulsant drugs. It is theorized that it can decrease the seizure threshold. This class of anticonvulsant includes carbamazepine, felbamate, gabapentin, levetiracetam, magnesium sulfate, oxcarbazepine, tiagabine hydrochloride, toprimate, valproic acid, and zonisamide.
tansy	NIACIN	Tansy is an herb considered to have a potential to stress the liver and cause damage (hepatotoxic). On it's own, this would more than likely be rare unless severe liver inflammation and/or damage already existed. High dose niacin used to treat dyslipidemia and it's resultant high triglycerides and LDL cholesterol, can be hepatotoxic. The combination of high dose niacin and borage could cause stress to the liver.
tansy	OXAZOLIDINEDIONES	Tansy is a thujone-containing herb that can decrease the therapeutic effect of anticonvulsant drugs like the oxazolidinediones. It is theorized that it can decrease the seizure threshold. This class of anticoagulant was once the drugs of choice for absence seizure but is rarely prescribed now.
tansy	PHENYTOIN	Tansy is an herb considered to have a potential to stress the liver and cause damage (hepatotoxic). On it's own, this would more than likely be rare unless severe liver inflammation and/or damage already existed. The anticonvulsant phenytoin also known as Dilantin@, is hepatotoxic in certain people with a genetic predisposition to slow break down of certain drugs in the liver. Use caution with the combination of these two substances.
tansy	STATIN DRUGS	Tansy is an herb considered to have a potential to stress the liver and cause damage (hepatotoxic). On it's own, this would more than likely be rare unless severe liver inflammation and/or damage already existed. The statin drugs, used to lower cholesterol, have a high hepatotoxic potential. This class of drugs includes atorvastatin, fluvastatin, lovastatin, pravastatin, rosuvastatin, and simvastatin.
tansy	SUCCINIMIDES	Tansy is a thujone-containing herb that can decrease the therapeutic effect of anticonvulsant drugs like the succinimides. It is theorized that it can decrease the seizure threshold. This class of anticonvulsant includes ethosuximide, and methsuximide.
tea (black, green)	ATROPINE SULFATE	Tea is a tannin-containing herb and can decrease the plasma level and the therapeutic action of the anesthetic qualities of the mandrake derived medications such as atropine.
tea (black, green)	BELLADONNA	Tea is a tannin-containing herb and can decrease the plasma level and the therapeutic action of the antimuscarinic activity of the solanaceous alkaloids. It is the atropine content in these drugs that is responsible for this activity and tannin reduces the plasma levels of atropine.
tea (black, green)	DESERPIDINE	Tea is a tannin-containing herb and can decrease the plasma level and the therapeutic action of the antihypertensive rauwolfia alkaloids such as reserpine. The desired reduction in blood pressure may be difficult to achieve with the combination of these two substances.
tea (black, green)	ERGOLOID MESYLATES	Tea is a tannin-containing herb and can decrease the plasma level and the therapeutic action of the ergot alkaloids used to treat migraine headaches. This action can be dose dependant, thus large amounts of caffeine may interfere with the effectiveness of these drugs in the treatment of acute onset migraine syndrome with or without headache.
tea (black, green)	ERGOTAMINE TARTRATE	Tea is a tannin-containing herb and can decrease the plasma level and the therapeutic action of the ergot alkaloids used to treat migraine headaches. This action can be dose dependant, thus large amounts of caffeine may interfere with the effectiveness of these drugs in the treatment of acute onset migraine syndrome with or without headache.
tea (black, green)	ERGOTAMINE TARTRATE	Tea is a tannin-containing herb and can decrease the plasma level and the therapeutic action of the ergot alkaloids used to treat migraine headaches. This action can be dose dependant, thus large amounts of caffeine may interfere with the effectiveness of these drugs in the treatment of acute onset migraine syndrome with or without headache.
tea (black, green)	IPECAC	Tea is a tannin-containing herb and can decrease the plasma level and the therapeutic action of the emetic ipecac which is an alkaloid. Once a universally recommended drug to have in one's medicine cabinet in case of accidental poisoning, ipecac treatment and inducing vomiting is no longer recommended universally as the initial treatment. (for more on the use of ipecac, discuss further with a pediatrician or other health care provider)
tea (black, green)	IRON	Tannin-rich herbs like teas can bind with iron and decrease it's absorption. Do not take this drug/supplement/herb combination; take separately.
tea (black, green)	METHYSERGIDE MALEATE	Tea is a tannin-containing herb and can decrease the plasma level and the therapeutic action of the ergot alkaloids used to treat migraine headaches. This action can be dose dependant, thus large amounts of caffeine may interfere with the effectiveness of these drugs in the treatment of acute onset migraine syndrome with or without headache.
tea (black, green)	OPIOIDS	Tea is a tannin-containing herb and can decrease the plasma level and the therapeutic action of the opioids including codeine, fentanyl, hydrocodone, hydromorphone, levomethadyl, levophanol, meperidine, methadone, morphine, opium, oxycodone, propoxyphene, sufentanil, and tramadol. The result could be a reduction in the pain relieving, analgesic effect desired.
tea (black, green)	QUININE SULFATE	Tea is a tannin-containing herb and can decrease the plasma level and the therapeutic action of the anti-malaria drug quinine. Avoid this combination
tea (black, green)	RESERPINE	Tea is a tannin-containing herb and can decrease the plasma level and the therapeutic action of the antihypertensive rauwolfia alkaloids such as reserpine. The desired reduction in blood pressure may be difficult to achieve with the combination of these two substances.
tea (black, green)	RESERPINE	Tea is a tannin-containing herb and can decrease the plasma level and the therapeutic action of the antihypertensive rauwolfia alkaloids such as reserpine. The desired reduction in blood pressure may be difficult to achieve with the combination of these two substances.
tea (black, green)	SCOPOLAMINE	Tea is a tannin-containing herb and can decrease the plasma level and the therapeutic action of the anesthetic qualities of the mandrake derived medications such as scopolamine.