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Drug Interactions between apomorphine and terazosin

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

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Interactions between your drugs

Major

terazosin apomorphine

Applies to: terazosin and apomorphine

MONITOR CLOSELY: Apomorphine may potentiate the hypotensive effects of vasodilators, antihypertensive agents, or agents with hypotensive properties. Apomorphine alone has been associated with orthostatic hypotension, hypotension, syncope, and dose-dependent decreases in systolic and diastolic blood pressure. In clinical studies of the subcutaneous formulation of apomorphine in patients with advanced Parkinson's disease, hypotension (10% vs 4%), myocardial infarction (3% vs. 1%), serious pneumonia (5% vs. 3%), serious falls (9% vs. 3%), and bone and joint injuries (6% vs. 2%) were experienced more commonly in patients receiving concomitant antihypertensive medications or vasodilators (n=94) compared to those not receiving these medications (n=456). Some of these events may be related to the increased incidence of hypotension.

MANAGEMENT: Caution and close monitoring for altered efficacy and safety are recommended if patients receive apomorphine with an antihypertensive agent, vasodilator, or agents with hypotensive properties. Patients should be made aware of the possible side effects (e.g., dizziness, lightheadedness, orthostasis) and be cautioned about driving, operating machinery, or performing other hazardous tasks. They should also be advised to avoid rising abruptly from a sitting or recumbent position and to contact their physician if they experience symptoms of hypotension such as dizziness, lightheadedness, or fainting.

References (6)
  1. (2004) "Product Information. Apokyn (apomorphine)." Mylan Pharmaceuticals Inc
  2. (2022) "Product Information. Apokyn (apomorphine)." US WorldMeds LLC
  3. (2022) "Product Information. Kynmobi (apomorphine)." Sunovion Pharmaceuticals Inc
  4. (2023) "Product Information. Dacepton (apomorphine)." Ever Pharma UK Ltd
  5. (2024) "Product Information. aPomine Intermittent (apomorphine)." Pfizer Australia Pty Ltd, 1.1
  6. (2024) "Product Information. Movapo (apomorphine)." Stada Pharmaceuticals Australia Pty Ltd

Drug and food interactions

Moderate

apomorphine food

Applies to: apomorphine

GENERALLY AVOID: Alcohol and apomorphine may have additive hypotensive and sedative effects. Coadministration of 0.6 or 0.3 g/kg of ethanol with apomorphine in healthy subjects resulted in greater decreases in blood pressure compared to apomorphine alone. The mean largest decrease (the mean of each subject's largest drop in blood pressure measured within 6 hours after apomorphine administration) in standing systolic and diastolic blood pressure was 6.7 and 8.4 mmHg, respectively, with apomorphine alone. When coadministered with 0.6 g/kg of ethanol (equivalent to approximately 3 standardized alcohol-containing beverages), the mean largest decrease in standing systolic and diastolic blood pressure was 11.3 and 12.6 mmHg, respectively (standing systolic and diastolic blood pressure decreased by as much as 61 and 51 mmHg, respectively, in this group). When coadministered with 0.3 g/kg of ethanol, the mean largest decrease in standing systolic and diastolic blood pressure was 8.4 and 7.1 mmHg, respectively.

MANAGEMENT: Patients should be advised to avoid consumption of alcohol during apomorphine treatment.

References (5)
  1. (2022) "Product Information. Apokyn (apomorphine)." US WorldMeds LLC
  2. (2022) "Product Information. Kynmobi (apomorphine)." Sunovion Pharmaceuticals Inc
  3. (2023) "Product Information. Dacepton (apomorphine)." Ever Pharma UK Ltd
  4. (2024) "Product Information. aPomine Intermittent (apomorphine)." Pfizer Australia Pty Ltd, 1.1
  5. (2024) "Product Information. Movapo (apomorphine)." Stada Pharmaceuticals Australia Pty Ltd
Moderate

terazosin food

Applies to: terazosin

GENERALLY AVOID: The concurrent use of ethanol and alpha-1 adrenergic blockers may cause increased hypotensive effects. Patients with aldehyde dehydrogenase deficiencies (primarily Asians) may be at a higher risk of this interaction. The mechanism has not been determined. Data exist for prazosin and other alpha adrenergic blockers are expected to interact also. In addition, any patients taking alpha adrenergic blockers may experience excessive orthostatic hypotension with ethanol ingestion, due to ethanol's unopposed vasodilatory effects in the presence of alpha adrenergic blockade.

MANAGEMENT: Patients who develop a flushing reaction after ethanol ingestion (indicates a possible aldehyde dehydrogenase deficiency) should be advised to avoid ethanol or limit their intake. All patients should be warned about the possibility of orthostatic hypotension with concurrent ethanol use.

References (2)
  1. Kawano Y, Abe H, Kojima S, Takishita S, Omae T (2000) "Interaction of alcohol and an a1-blocker on ambulatory blood pressure in patients with essential hypertension." Am J Hypertens, 13, p. 307-12
  2. (2002) "Product Information. Xatral (alfuzosin)." Sanofi-Synthelabo Canada Inc

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.

See also

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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

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