Details of Drug-Drug Interaction
| Drug General Information (ID: DDIUTX03V1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Drug Name | Temazepam | Drug Info | Metoprolol | Drug Info | |||||
| Drug Type | Small molecule | Small molecule | |||||||
| Therapeutic Class | Anxiolytics/Sedatives/Hypnotics | Antihypertensive Agents | |||||||
| Structure | |||||||||
| Mechanism of Temazepam-Metoprolol Interaction (Severity Level: Moderate) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Additive hypotensive effects Click to Show/Hide Mechanism Graph | |||||||||
 |
|||||||||
| Drug Name | Temazepam | Metoprolol | |||||||
| Mechanism |
Hypotensive effects Gamma-aminobutyric acid receptor Agonist |
Hypotensive effects Beta-1 adrenergic receptor Antagonist |
|||||||
| Key Mechanism Factor 1 | |||||||||
| Factor Name | GABA (A) receptor | Structure Sequence | |||||||
| Protein Family | Ligand-gated ion channel (TC 1.A.9) family | ||||||||
| Protein Function |
Ligand-gated chloride channel which is a component of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the brain (PubMed:23909897, PubMed:25489750, PubMed:29950725). Plays an important role in the formation of functional inhibitory GABAergic synapses in addition to mediating synaptic inhibition as a GABA-gated ion channel (PubMed:23909897, PubMed:25489750). The gamma2 subunit is necessary but not sufficient for a rapid formation of active synaptic contacts and the synaptogenic effect of this subunit is influenced by the type of alpha and beta subunits present in the receptor pentamer (By similarity). The alpha1/beta2/gamma2 receptor and the alpha1/beta3/gamma2 receptor exhibit synaptogenic activity (PubMed:23909897, PubMed:25489750). GABRA1-mediated plasticity in the orbitofrontal cortex regulates context-dependent action selection (By similarity). Functions also as histamine receptor and mediates cellular responses to histamine (By similarity).
Click to Show/Hide
|
||||||||
| Key Mechanism Factor 2 | |||||||||
| Factor Name | Adrenergic receptor beta-1 |
×
Structure
Sequence
MGAGVLVLGASEPGNLSSAAPLPDGAATAARLLVPASPPASLLPPASESPEPLSQQWTAGMGLLMALIVLLIVAGNVLVIVAIAKTPRLQTLTNLFIMSLASADLVMGLLVVPFGATIVVWGRWEYGSFFCELWTSVDVLCVTASIETLCVIALDRYLAITSPFRYQSLLTRARARGLVCTVWAISALVSFLPILMHWWRAESDEARRCYNDPKCCDFVTNRAYAIASSVVSFYVPLCIMAFVYLRVFREAQKQVKKIDSCERRFLGGPARPPSPSPSPVPAPAPPPGPPRPAAAAATAPLANGRAGKRRPSRLVALREQKALKTLGIIMGVFTLCWLPFFLANVVKAFHRELVPDRLFVFFNWLGYANSAFNPIIYCRSPDFRKAFQRLLCCARRAARRRHATHGDRPRASGCLARPGPPPSPGAASDDDDDDVVGATPPARLLEPWAGCNGGAAADSDSSLDEPCRPGFASESKV
|
|||||||
| Gene Name | ADRB1 | ||||||||
| Uniprot ID | ADRB1_HUMAN | ||||||||
| KEGG Pathway | hsa:153 | ||||||||
| Protein Family | G-protein coupled receptor 1 family | ||||||||
| Protein Function |
Beta-adrenergic receptors mediate the catecholamine-induced activation of adenylate cyclase through the action of G proteins. This receptor binds epinephrine and norepinephrine with approximately equal affinity. Mediates Ras activation through G(s)-alpha- and cAMP-mediated signaling. Involved in the regulation of sleep/wake behaviors (PubMed:31473062).
Click to Show/Hide
|
||||||||
| Mechanism Description |
|
||||||||
| Recommended Action | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Management | Caution and close monitoring for development of hypotension is advised during coadministration of these agents. Avoid alcohol in patients receiving vasodilating antihypertensive drugs. 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. | ||||||||