Details of Drug-Drug Interaction
| Drug General Information (ID: DDI6DW1L3V) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Drug Name | Clonidine | Drug Info | Nifedipine | Drug Info | |||||
| Drug Type | Small molecule | Small molecule | |||||||
| Therapeutic Class | Antihypertensive Agents | Analgesics | |||||||
| Structure | |||||||||
| Mechanism of Clonidine-Nifedipine Interaction (Severity Level: Moderate) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Additive hypotensive effects Click to Show/Hide Mechanism Graph | |||||||||
 |
|||||||||
| Drug Name | Clonidine | Nifedipine | |||||||
| Mechanism |
Antihypertensive agent Alpha-2 adrenergic receptor Agonist |
Antihypertensive agent Voltage-gated L-type calcium channel Blocker |
|||||||
| Key Mechanism Factor 1 | |||||||||
| Factor Name | Adrenergic receptor alpha-2 | Structure Sequence | |||||||
| Protein Family | G-protein coupled receptor 1 family | ||||||||
| Protein Function |
Alpha-2 adrenergic receptors mediate the catecholamine-induced inhibition of adenylate cyclase through the action of G proteins. The rank order of potency for agonists of this receptor is oxymetazoline > clonidine > epinephrine > norepinephrine > phenylephrine > dopamine > p-synephrine > p-tyramine > serotonin = p-octopamine. For antagonists, the rank order is yohimbine > phentolamine = mianserine > chlorpromazine = spiperone = prazosin > propanolol > alprenolol = pindolol.
Click to Show/Hide
|
||||||||
| Key Mechanism Factor 2 | |||||||||
| Factor Name | Voltage-dependent L-type calcium channel subunit beta-1 |
×
Structure
Sequence
MVQKTSMSRGPYPPSQEIPMEVFDPSPQGKYSKRKGRFKRSDGSTSSDTTSNSFVRQGSAESYTSRPSDSDVSLEEDREALRKEAERQALAQLEKAKTKPVAFAVRTNVGYNPSPGDEVPVQGVAITFEPKDFLHIKEKYNNDWWIGRLVKEGCEVGFIPSPVKLDSLRLLQEQKLRQNRLGSSKSGDNSSSSLGDVVTGTRRPTPPASAKQKQKSTEHVPPYDVVPSMRPIILVGPSLKGYEVTDMMQKALFDFLKHRFDGRISITRVTADISLAKRSVLNNPSKHIIIERSNTRSSLAEVQSEIERIFELARTLQLVALDADTINHPAQLSKTSLAPIIVYIKITSPKVLQRLIKSRGKSQSKHLNVQIAASEKLAQCPPEMFDIILDENQLEDACEHLAEYLEAYWKATHPPSSTPPNPLLNRTMATAALAASPAPVSNLQGPYLASGDQPLERATGEHASMHEYPGELGQPPGLYPSSHPPGRAGTLRALSRQDTFDADTPGSRNSAYTELGDSCVDMETDPSEGPGLGDPAGGGTPPARQGSWEDEEEDYEEELTDNRNRGRNKARYCAEGGGPVLGRNKNELEGWGRGVYIR
|
|||||||
| Gene Name | CACNB1 | ||||||||
| Uniprot ID | CACB1_HUMAN | ||||||||
| KEGG Pathway | hsa:782 | ||||||||
| Protein Family | Calcium channel beta subunit family | ||||||||
| Protein Function |
Regulatory subunit of L-type calcium channels (PubMed:1309651, PubMed:8107964, PubMed:15615847). Regulates the activity of L-type calcium channels that contain CACNA1A as pore-forming subunit (By similarity). Regulates the activity of L-type calcium channels that contain CACNA1C as pore-forming subunit and increases the presence of the channel complex at the cell membrane (PubMed:15615847). Required for functional expression L-type calcium channels that contain CACNA1D as pore-forming subunit (PubMed:1309651). Regulates the activity of L-type calcium channels that contain CACNA1B as pore-forming subunit (PubMed:8107964).
Click to Show/Hide
|
||||||||
| Mechanism Description |
|
||||||||
| Recommended Action | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Management | Hemodynamic responses should be monitored during coadministration, especially during the first few weeks of therapy. Patients should be advised to take the alpha-blocker at bedtime and to notify their physician if they experience dizziness or syncope while awake. | ||||||||