GUARANA - Uses, Side Effects, and More

Ephedrine interacts with GUARANA

Stimulant drugs speed up the nervous system. Caffeine (contained in guarana) and ephedrine are both stimulant drugs. Taking guarana along with ephedrine might cause too much stimulation and serious side effects and heart problems.

Adenosine (Adenocard) interacts with GUARANA

Guarana contains caffeine. The caffeine in guarana might block the affects of adenosine, which is often used by doctors to do a test called a cardiac stress test. Stop consuming guarana at least 24 hours before a cardiac stress test.

Cimetidine (Tagamet) interacts with GUARANA

Guarana contains caffeine. The body breaks down caffeine to get rid of it. Cimetidine can decrease how quickly your body breaks down caffeine. Taking cimetidine along with guarana might increase the chance of caffeine side effects including jitteriness, headache, and fast heartbeat.

Clozapine (Clozaril) interacts with GUARANA

The body breaks down clozapine to get rid of it. The caffeine in guarana seems to decrease how quickly the body breaks down clozapine. Taking guarana along with clozapine can increase the effects and side effects of clozapine.

Disulfiram (Antabuse) interacts with GUARANA

Guarana contains caffeine. The body breaks down caffeine to get rid of it. Disulfiram can decrease how quickly the body gets rid of caffeine. Taking guarana along with disulfiram might increase the change of caffeine side effects, including jitteriness, headache, and fast heartbeat.

Estrogens interacts with GUARANA

Guarana contains caffeine. The body breaks down the caffeine to get rid of it. Estrogens can decrease how quickly the body breaks down caffeine. Taking guarana along with estrogens can increase the risk of caffeine side effects, including jitteriness, headache, and fast heartbeat.

Fluvoxamine (Luvox) interacts with GUARANA

Guarana contains caffeine. The body breaks down the caffeine to get rid of it. Fluvoxamine can decrease how quickly the body breaks down caffeine. Taking guarana along with fluvoxamine might increase the risk of caffeine side effects, such as jitteriness, headache, and fast heartbeat.

Lithium interacts with GUARANA

The body naturally gets rid of lithium. The caffeine in guarana can increase how quickly the body gets rid of lithium. If you take products that contain caffeine and you take lithium, don't change your dose of caffeine quickly. Stopping caffeine too quickly can increase the side effects of lithium. If you stop using caffeine, reduce the dose slowly.

Medications for depression (MAOIs) interacts with GUARANA

Guarana contains caffeine. There is some concern that caffeine can interact with certain medications, called MAOIs. If caffeine is taken with these medications, it might increase the risk for serious side effects including fast heartbeat and very high blood pressure.

Dipyridamole (Persantine) interacts with GUARANA

Guarana contains caffeine. The caffeine in guarana might block the effects of dipyridamole, which is often used by doctors to do a test called a cardiac stress test. Stop consuming guarana at least 24 hours before a cardiac stress test.

Medications that slow blood clotting (Anticoagulant / Antiplatelet drugs) interacts with GUARANA

Guarana might slow blood clotting. Taking guarana along with medications that also slow blood clotting might increase the risk of bruising and bleeding.

Nicotine interacts with GUARANA

Stimulant drugs such as nicotine speed up the nervous system. The caffeine in guarana might also speed up the nervous system. Taking guarana along with stimulant drugs might cause serious problems including increased heart rate and high blood pressure.

Pentobarbital (Nembutal) interacts with GUARANA

The stimulant effects of the caffeine in guarana can block the sleep-producing effects of pentobarbital.

Phenylpropanolamine interacts with GUARANA

The caffeine in guarana can stimulate the body. Phenylpropanolamine can also stimulate the body. Taking guarana along with phenylpropanolamine might cause too much stimulation and increase heartbeat, blood pressure, and cause nervousness.

Riluzole (Rilutek) interacts with GUARANA

The body breaks down riluzole to get rid of it. Taking guarana can decrease how fast the body breaks down riluzole and increase the effects and side effects of riluzole.

Theophylline interacts with GUARANA

Guarana contains caffeine. Caffeine works similarly to theophylline. Caffeine can also decrease how quickly the body gets rid of theophylline. Taking guarana along with theophylline might increase the effects and side effects of theophylline.

Verapamil (Calan, others) interacts with GUARANA

The body breaks down the caffeine in guarana to get rid of it. Verapamil can decrease how quickly the body gets rid of caffeine. Taking guarana along with verapamil can increase the risk of caffeine side effects including jitteriness, headache, and fast heartbeat.

Medications for asthma (Beta-adrenergic agonists) interacts with GUARANA

Guarana contains caffeine. Caffeine can stimulate the heart. Some medications for asthma can also stimulate the heart. Taking caffeine with some medications for asthma might cause too much stimulation and heart problems.

Stimulant drugs interacts with GUARANA

Stimulants, such as amphetamines and cocaine, speed up the nervous system. By speeding up the nervous system, stimulant medications can increase blood pressure and speed up the heartbeat. Caffeine in guarana can also speed up the nervous system. Taking guarana along with stimulant drugs might cause serious problems including increased heart rate and high blood pressure.

CARBAMAZEPINE (Tegretol) interacts with GUARANA

Carbamazepine is used to treat seizures. The caffeine in guarana might reduce the effects of carbamazepine. In theory, taking guarana with carbamazepine might reduce its effects and increase the risk of seizures in some people.

Ethosuximide interacts with GUARANA

Ethosuximide is used to treat seizures. Caffeine in guarana might reduce the effects of ethosuximide. In theory, taking guarana with ethosuximide might reduce its effects and increase the risk of seizures in some people.

Felbamate interacts with GUARANA

Felbamate is used to treat seizures. Caffeine in guarana might reduce the effects of felbamate. In theory, taking guarana with felbamate might reduce its effects and increase the risk of seizures.

Flutamide (Eulexin) interacts with GUARANA

The body breaks down flutamide to get rid of it. Caffeine in guarana might decrease how quickly the body breaks down flutamide. In theory, taking guarana along with flutamide might increase the effects and side effects of flutamide.

Phenobarbital (Luminal) interacts with GUARANA

Phenobarbital is used to treat seizures. Caffeine, in guarana might reduce the effects of phenobarbital. In theory, taking guarana with phenobarbital might reduce its effects and increase the risk of seizures.

Phenytoin (Dilantin) interacts with GUARANA

Phenytoin is used to control some types of seizures. Caffeine in guarana might reduce the effects of phenytoin. In theory, taking guarana with phenytoin might reduce its effects and increase the risk of seizures.

Valproate interacts with GUARANA

Valproate is used to treat seizures. Caffeine in guarana might reduce the effects of valproate. In theory, taking guarana with valproate might reduce its effects and increase the risk of seizures.

Water pills (Diuretic drugs) interacts with GUARANA

Guarana contains caffeine. Caffeine can decrease potassium levels. "Water pills" can also decrease potassium levels. Taking guarana along with "water pills" might make potassium levels drop too low.

Alcohol (Ethanol) interacts with GUARANA

The body breaks down the caffeine in guarana to get rid of it. Alcohol can decrease how quickly the body breaks down caffeine. Taking guarana along with alcohol might increase the risk for caffeine side effects, such as jitteriness, headache, and fast heartbeat.

Antibiotics (Quinolone antibiotics) interacts with GUARANA

The body breaks down caffeine from guarana to get rid of it. Some drugs can decrease how quickly the body breaks down caffeine. Taking these drugs along with guarana might increase the risk of caffeine side effects including jitteriness, headache, and fast heartbeat.

Birth control pills (Contraceptive drugs) interacts with GUARANA

Guarana contains caffeine. The body breaks down caffeine to get rid of it. Birth control pills can decrease how quickly the body breaks down caffeine. This might increase the risk for caffeine side effects, such as jitteriness, headache, and fast heartbeat.

Fluconazole (Diflucan) interacts with GUARANA

Guarana contains caffeine. The body breaks down caffeine to get rid of it. Fluconazole might decrease how quickly the body gets rid of caffeine Taking guarana along with fluconazole might increase the risk of caffeine side effects such as jitteriness, headache, and fast heartbeat.

Medications for diabetes (Antidiabetes drugs) interacts with GUARANA

Guarana might lower blood sugar levels. Taking guarana along with diabetes medications might cause blood sugar to drop too low. Monitor your blood sugar closely.

Mexiletine (Mexitil) interacts with GUARANA

Guarana contains caffeine. The body breaks down caffeine to get rid of it. Mexiletine can decrease how quickly the body breaks down caffeine. Taking mexiletine along with guarana might increase the risk of caffeine side effects, such as jitteriness, headache, and fast heartbeat.

Terbinafine (Lamisil) interacts with GUARANA

Guarana contains caffeine. The body breaks down caffeine to get rid of it. Terbinafine can decrease how fast the body gets rid of caffeine and increase the risk of caffeine side effects such as jitteriness, headache, and fast heartbeat.

Medications that decrease the breakdown of other medications by the liver (Cytochrome P450 1A2 (CYP1A2) inhibitors) interacts with GUARANA

Guarana is changed and broken down by the liver. Some drugs decrease how quickly the liver changes and breaks down guarana. This could change the effects and side effects of guarana.

Metformin (Glucophage) interacts with GUARANA

Guarana contains caffeine. The body breaks down caffeine to get rid of it. Metformin can decrease how quickly the body breaks down caffeine. Taking metformin along with guarana might increase the risk of caffeine side effects. such as jitteriness, headache, and fast heartbeat.

Methoxsalen (Oxsoralen) interacts with GUARANA

Guarana contains caffeine. The body breaks down caffeine to get rid of it. Methoxsalen can decrease how quickly the body breaks down caffeine. Taking methoxsalen along with guarana might increase the risk of caffeine side effects, such as jitteriness, headache, and fast heartbeat.

Phenothiazines interacts with GUARANA

Guarana contains caffeine. The body breaks down caffeine to get rid of it. Phenothiazines can decrease how quickly the body breaks down caffeine. Taking phenothiazines along with guarana might increase the risk of caffeine side effects, such as jitteriness, headache, and fast heartbeat.

Tiagabine (Gabitril) interacts with GUARANA

Tiagabine is used to treat seizures. There is some concern that caffeine can reduce the effects of tiagabine. But studies show that tiagabine still works even when taken with caffeine.

Ticlopidine (Ticlid) interacts with GUARANA

Guarana contains caffeine. The body breaks down caffeine to get rid of it. Ticlopidine can decrease how fast the body gets rid of caffeine. In theory, taking guarana along with ticlopidine might increase the risk of caffeine side effects, such as jitteriness, headache, and fast heartbeat.

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