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Drug Interactions between polythiazide / prazosin and Prozac Weekly

This report displays the potential drug interactions for the following 2 drugs:

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Interactions between your drugs

Moderate

prazosin polythiazide

Applies to: polythiazide / prazosin and polythiazide / prazosin

Before taking polythiazide, tell your doctor if you also use prazosin. You may need dose adjustments or special tests in order to safely take both medications together. The blood pressure lowering effects of this combination may be additive. You should take prazosin at bedtime and to notify your doctor if have dizziness or feel faint. 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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Moderate

FLUoxetine polythiazide

Applies to: Prozac Weekly (fluoxetine) and polythiazide / prazosin

Treatment with FLUoxetine may occasionally cause blood sodium levels to get too low, a condition known as hyponatremia, and using it with polythiazide can increase that risk. You should seek medical attention if you experience nausea, vomiting, headache, lethargy, irritability, difficulty concentrating, memory impairment, confusion, muscle spasm, weakness or unsteadiness, as these may be symptoms of hyponatremia. More severe cases may lead to hallucination, fainting, seizure, coma, and even death. FLUoxetine can also affect your blood pressure and heart rate. You may need a dose adjustment or more frequent monitoring of your blood pressure and pulse to safely use both medications. You should avoid rising abruptly from a sitting or lying position while taking these medications, especially at the beginning of treatment or after an increase in dose. Call your doctor if you experience dizziness, lightheadedness, fainting, or a rapid heart beat. 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

Moderate

FLUoxetine food

Applies to: Prozac Weekly (fluoxetine)

Alcohol can increase the nervous system side effects of FLUoxetine such as dizziness, drowsiness, and difficulty concentrating. Some people may also experience impairment in thinking and judgment. You should avoid or limit the use of alcohol while being treated with FLUoxetine. Do not use more than the recommended dose of FLUoxetine, and 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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Moderate

prazosin food

Applies to: polythiazide / prazosin

Ask your doctor before using prazosin together with ethanol. Using prazosin with ethanol can lower your blood pressure. This can cause dizziness or feeling like you might pass out, especially when getting up from a sitting or lying position. This may be more likely to occur when you first start taking either of these medications. You may need a dose adjustment or need your blood pressure checked more often if you take both medications. You may develop flushing, warmth or redness under your skin or tingly feeling after alcohol intake (especially in you are of Asian descent) and should be advised to avoid alcohol or limit your intake. 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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Moderate

polythiazide food

Applies to: polythiazide / prazosin

Polythiazide and ethanol may have additive effects in lowering your blood pressure. You may experience headache, dizziness, lightheadedness, fainting, and/or changes in pulse or heart rate. These side effects are most likely to be seen at the beginning of treatment, following a dose increase, or when treatment is restarted after an interruption. Let your doctor know if you develop these symptoms and they do not go away after a few days or they become troublesome. 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. 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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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.


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Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
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 interaction information available.

Further information

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