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Drug Interactions between Quadrapax and Tenoretic

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

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Interactions between your drugs

Moderate

atenolol atropine

Applies to: Tenoretic (atenolol / chlorthalidone) and Quadrapax (atropine / hyoscyamine / phenobarbital / scopolamine)

Using atropine together with atenolol may alter the effects of both medications. Contact your doctor if you experience drowsiness, dizziness, lightheadedness, confusion, blurred vision, dry mouth, or difficulty urinating. You may need a dose adjustment or need your blood pressure checked more often to safely use both medications. You should avoid activities requiring mental alertness until you know how the medications will affect you. 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

atenolol chlorthalidone

Applies to: Tenoretic (atenolol / chlorthalidone) and Tenoretic (atenolol / chlorthalidone)

Using atenolol and chlorthalidone together may lower your blood pressure and slow your heart rate. This can cause dizziness, or feeling like you might pass out, weakness, fainting, fast or irregular heartbeats, or loss of blood glucose control. If you take both medications together, tell your doctor if you have any of these symptoms. You may need a dose adjustment or need your blood pressure checked more often 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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Moderate

atenolol PHENobarbital

Applies to: Tenoretic (atenolol / chlorthalidone) and Quadrapax (atropine / hyoscyamine / phenobarbital / scopolamine)

Atenolol and PHENobarbital 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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Moderate

chlorthalidone PHENobarbital

Applies to: Tenoretic (atenolol / chlorthalidone) and Quadrapax (atropine / hyoscyamine / phenobarbital / scopolamine)

Chlorthalidone and PHENobarbital 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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Moderate

atenolol hyoscyamine

Applies to: Tenoretic (atenolol / chlorthalidone) and Quadrapax (atropine / hyoscyamine / phenobarbital / scopolamine)

Using hyoscyamine together with atenolol may alter the effects of both medications. Contact your doctor if you experience drowsiness, dizziness, lightheadedness, confusion, blurred vision, dry mouth, or difficulty urinating. You may need a dose adjustment or need your blood pressure checked more often to safely use both medications. You should avoid activities requiring mental alertness until you know how the medications will affect you. 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

atropine hyoscyamine

Applies to: Quadrapax (atropine / hyoscyamine / phenobarbital / scopolamine) and Quadrapax (atropine / hyoscyamine / phenobarbital / scopolamine)

Using atropine together with hyoscyamine may increase side effects such as drowsiness, blurred vision, dry mouth, heat intolerance, flushing, decreased sweating, difficulty urinating, abdominal cramping, constipation, irregular heartbeat, confusion, and memory problems. Side effects may be more likely to occur in the elderly or those with a debilitating condition. You should avoid or limit the use of alcohol while being treated with these medications. Also avoid activities requiring mental alertness such as driving or operating hazardous machinery until you know how the medications affect you. Talk to your doctor if you have any questions or concerns. 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

atenolol scopolamine

Applies to: Tenoretic (atenolol / chlorthalidone) and Quadrapax (atropine / hyoscyamine / phenobarbital / scopolamine)

Using scopolamine together with atenolol may alter the effects of both medications. Contact your doctor if you experience drowsiness, dizziness, lightheadedness, confusion, blurred vision, dry mouth, or difficulty urinating. You may need a dose adjustment or need your blood pressure checked more often to safely use both medications. You should avoid activities requiring mental alertness until you know how the medications will affect you. 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

atropine scopolamine

Applies to: Quadrapax (atropine / hyoscyamine / phenobarbital / scopolamine) and Quadrapax (atropine / hyoscyamine / phenobarbital / scopolamine)

Using atropine together with scopolamine may increase side effects such as drowsiness, blurred vision, dry mouth, heat intolerance, flushing, decreased sweating, difficulty urinating, abdominal cramping, constipation, irregular heartbeat, confusion, and memory problems. Side effects may be more likely to occur in the elderly or those with a debilitating condition. You should avoid or limit the use of alcohol while being treated with these medications. Also avoid activities requiring mental alertness such as driving or operating hazardous machinery until you know how the medications affect you. Talk to your doctor if you have any questions or concerns. 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

PHENobarbital scopolamine

Applies to: Quadrapax (atropine / hyoscyamine / phenobarbital / scopolamine) and Quadrapax (atropine / hyoscyamine / phenobarbital / scopolamine)

Using PHENobarbital together with scopolamine may increase side effects such as dizziness, drowsiness, confusion, and difficulty concentrating. Some people, especially the elderly, may also experience impairment in thinking, judgment, and motor coordination. You should avoid or limit the use of alcohol while being treated with these medications. Also avoid activities requiring mental alertness such as driving or operating hazardous machinery until you know how the medications affect you. Talk to your doctor if you have any questions or concerns. 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

hyoscyamine scopolamine

Applies to: Quadrapax (atropine / hyoscyamine / phenobarbital / scopolamine) and Quadrapax (atropine / hyoscyamine / phenobarbital / scopolamine)

Using hyoscyamine together with scopolamine may increase side effects such as drowsiness, blurred vision, dry mouth, heat intolerance, flushing, decreased sweating, difficulty urinating, abdominal cramping, constipation, irregular heartbeat, confusion, and memory problems. Side effects may be more likely to occur in the elderly or those with a debilitating condition. You should avoid or limit the use of alcohol while being treated with these medications. Also avoid activities requiring mental alertness such as driving or operating hazardous machinery until you know how the medications affect you. Talk to your doctor if you have any questions or concerns. 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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Minor

atropine chlorthalidone

Applies to: Quadrapax (atropine / hyoscyamine / phenobarbital / scopolamine) and Tenoretic (atenolol / chlorthalidone)

Information for this minor interaction is available on the professional version.

Minor

chlorthalidone hyoscyamine

Applies to: Tenoretic (atenolol / chlorthalidone) and Quadrapax (atropine / hyoscyamine / phenobarbital / scopolamine)

Information for this minor interaction is available on the professional version.

Minor

chlorthalidone scopolamine

Applies to: Tenoretic (atenolol / chlorthalidone) and Quadrapax (atropine / hyoscyamine / phenobarbital / scopolamine)

Information for this minor interaction is available on the professional version.

Drug and food interactions

Major

PHENobarbital food

Applies to: Quadrapax (atropine / hyoscyamine / phenobarbital / scopolamine)

Ask your doctor before using PHENobarbital together with ethanol, this can add to dizziness, drowsiness and other side effects of PHENobarbital. Be careful if you drive or do activities that require you to be awake and alert. Talk with your doctor before using any medications together, or drinking alcohol with PHENobarbital. 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

atenolol food

Applies to: Tenoretic (atenolol / chlorthalidone)

You may take atenolol with or without food, but take it the same way every time. Avoid consumption of large amounts of orange juice to prevent any changes in your atenolol levels. Orange juice could decrease the effectiveness of atenolol.

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Moderate

atenolol food

Applies to: Tenoretic (atenolol / chlorthalidone)

Atenolol 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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Moderate

atropine food

Applies to: Quadrapax (atropine / hyoscyamine / phenobarbital / scopolamine)

Ask your doctor before using atropine together with ethanol. Use alcohol cautiously. Alcohol may increase drowsiness and dizziness while you are taking atropine. You should be warned not to exceed recommended dosages and to avoid activities requiring mental alertness. If your doctor prescribes these medications together, you may need a dose adjustment to safely take this combination. 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

chlorthalidone food

Applies to: Tenoretic (atenolol / chlorthalidone)

Chlorthalidone 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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Moderate

hyoscyamine food

Applies to: Quadrapax (atropine / hyoscyamine / phenobarbital / scopolamine)

Ask your doctor before using hyoscyamine together with ethanol. Use alcohol cautiously. Alcohol may increase drowsiness and dizziness while you are taking hyoscyamine. You should be warned not to exceed recommended dosages and to avoid activities requiring mental alertness. If your doctor prescribes these medications together, you may need a dose adjustment to safely take this combination. 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

scopolamine food

Applies to: Quadrapax (atropine / hyoscyamine / phenobarbital / scopolamine)

Ask your doctor before using scopolamine together with ethanol. Use alcohol cautiously. Alcohol may increase drowsiness and dizziness while you are taking scopolamine. You should be warned not to exceed recommended dosages and to avoid activities requiring mental alertness. If your doctor prescribes these medications together, you may need a dose adjustment to safely take this combination. 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

atenolol food

Applies to: Tenoretic (atenolol / chlorthalidone)

Using atenolol together with multivitamin with minerals may decrease the effects of atenolol. Separate the administration times of atenolol and multivitamin with minerals by at least 2 hours. If your doctor does prescribe these medications together, you may need a dose adjustment or special test 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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Minor

scopolamine food

Applies to: Quadrapax (atropine / hyoscyamine / phenobarbital / scopolamine)

Information for this minor interaction is available on the professional version.

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.