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Drug interactions between Parnate and Stelazine

Results for the following 2 drugs:
Parnate (tranylcypromine)
Stelazine (trifluoperazine)

Interactions between your drugs


tranylcypromine trifluoperazine

Applies to: Parnate (tranylcypromine) and Stelazine (trifluoperazine)

Using trifluoperazine together with tranylcypromine can increase the side effects of both medications. You may be more likely to develop low blood pressure and related problems such as dizziness, lightheadedness, fainting, weakness, and a rapid pulse/heart rate. Nervous system side effects such as drowsiness, confusion, disorientation, memory loss, and seizures may also increase. Let your doctor know if you experience these symptoms and they do not go away after a few days or they become troublesome. These side effects can occur with either medication alone and are most often seen at the beginning of treatment, following a dose increase, or when treatment is restarted after an interruption. Alcohol may also increase these effects, so you should avoid the consumption of alcohol during treatment with these medications. You should seek immediate medical attention if you develop fever, muscle stiffness, confusion, sweating, fast or uneven heartbeats, restless muscle movements in your face or neck, tremor (uncontrolled shaking), or difficulty swallowing. Avoid driving or operating hazardous machinery until you know how the medications affect you, and use caution when getting up from a sitting or lying position. You may need a dose adjustment or more frequent monitoring by your doctor to safely use both medications. 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.

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Drug and food interactions


tranylcypromine food

Applies to: Parnate (tranylcypromine)

During and within two weeks after treatment with tranylcypromine, you must not consume any foods or beverages that are high in tyramine content. Doing so can raise your blood pressure to dangerous levels, a condition known as hypertensive crisis. The condition is potentially fatal and may cause symptoms such as severe headache, confusion, blurred vision, problems with speech or balance, nausea, vomiting, chest pain, convulsions, and sudden numbness or weakness (especially on one side of the body). You should seek immediate medical attention if you have any of these symptoms. Foods that are high in tyramine include, but are not limited to, air dried meats; aged or fermented meats; sausage or salami; pickled herring; anchovies; liver; red wine; beer; aged cheeses, including blue, brick, brie, cheddar, parmesan, romano, and swiss; sour cream; sauerkraut; canned figs; raisins; bananas or avocados (particularly if overripe); soy beans; soy sauce; tofu; miso soup; bean curd; fava beans; or yeast extracts (such as Marmite). You should avoid the use of alcohol while being treated with tranylcypromine, as alcohol may increase some of the nervous system side effects such as dizziness, drowsiness, and difficulty concentrating. Also avoid activities requiring mental alertness such as driving or operating hazardous machinery until you know how the medication affects you. Talk to your doctor or pharmacist if you have any questions or concerns.

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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.

Drug Interaction Classification

The classifications below are a guideline only. The relevance of a particular drug interaction to a specific patient is difficult to determine using this tool alone given the large number of variables that may apply.
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 information available.

Do not stop taking any medications without consulting your healthcare provider.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.