Details of Drug-Drug Interaction
| Drug General Information (ID: DDI3FYXCND) | |||||||||
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| Drug Name | Terazosin | Drug Info | Alimemazine | Drug Info | |||||
| Drug Type | Small molecule | Small molecule | |||||||
| Therapeutic Class | Antineoplastics | Antihistamines | |||||||
| Structure | |||||||||
| Mechanism of Terazosin-Alimemazine Interaction (Severity Level: Moderate) | |||||||||
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| Additive hypotensive effects Click to Show/Hide Mechanism Graph | |||||||||
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| Drug Name | Terazosin | Alimemazine | |||||||
| Mechanism |
Hypotensive effects Alpha-1 adrenergic receptor Antagonist |
Hypotensive effects Alpha-1 adrenergic receptor Antagonist |
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| Key Mechanism Factor 1 | |||||||||
| Factor Name | Adrenergic receptor alpha-1 | Structure Sequence | |||||||
| Protein Family | G-protein coupled receptor 1 family | ||||||||
| Protein Function |
This alpha-adrenergic receptor mediates its action by association with G proteins that activate a phosphatidylinositol-calcium second messenger system. Its effect is mediated by G(q) and G(11) proteins. Nuclear ADRA1A-ADRA1B heterooligomers regulate phenylephrine(PE)-stimulated ERK signaling in cardiac myocytes.
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| Mechanism Description |
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| Recommended Action | |||||||||
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| Management | Close clinical monitoring for development of hypotension is recommended if phenothiazines or neuroleptic agents are used in patients receiving antihypertensive medications or vasodilators. A lower starting dosage and slower titration of the phenothiazine or neuroleptic may be appropriate, especially in the elderly. Patients should be advised to avoid rising abruptly from a sitting or recumbent position and to notify their physician if they experience dizziness, lightheadedness, syncope, orthostasis, or tachycardia. Patients should also avoid driving or operating hazardous machinery. | ||||||||