Details of Drug-Drug Interaction
| Drug General Information (ID: DDI4UVR9ZS) | |||||||||
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| Drug Name | Doxylamine | Drug Info | Selegiline | Drug Info | |||||
| Drug Type | Small molecule | Small molecule | |||||||
| Therapeutic Class | Anxiolytics/Sedatives/Hypnotics | Dopaminergic Antiparkinsonism Agents/Mao Inhibitors | |||||||
| Structure | |||||||||
| Mechanism of Doxylamine-Selegiline Interaction (Severity Level: Major) | |||||||||
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| Additive anticholinergic effects Click to Show/Hide Mechanism Graph | |||||||||
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| Drug Name | Doxylamine | Selegiline | |||||||
| Mechanism 1 |
Anticholinergic effects Muscarinic acetylcholine receptor Antagonist |
Anticholinergic effects Monoamine oxidase-B selective Inhibitor |
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| Key Mechanism Factor 1 | |||||||||
| Factor Name | Muscarinic acetylcholine receptor M | Structure Sequence | |||||||
| Protein Family | G-protein coupled receptor 1 family | ||||||||
| Protein Function |
The muscarinic acetylcholine receptor mediates various cellular responses, including inhibition of adenylate cyclase, breakdown of phosphoinositides and modulation of potassium channels through the action of G proteins. Primary transducing effect is Pi turnover.
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| Key Mechanism Factor 2 | |||||||||
| Factor Name | Monoamine oxidase type B |
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Structure
Sequence
MSNKCDVVVVGGGISGMAAAKLLHDSGLNVVVLEARDRVGGRTYTLRNQKVKYVDLGGSYVGPTQNRILRLAKELGLETYKVNEVERLIHHVKGKSYPFRGPFPPVWNPITYLDHNNFWRTMDDMGREIPSDAPWKAPLAEEWDNMTMKELLDKLCWTESAKQLATLFVNLCVTAETHEVSALWFLWYVKQCGGTTRIISTTNGGQERKFVGGSGQVSERIMDLLGDRVKLERPVIYIDQTRENVLVETLNHEMYEAKYVISAIPPTLGMKIHFNPPLPMMRNQMITRVPLGSVIKCIVYYKEPFWRKKDYCGTMIIDGEEAPVAYTLDDTKPEGNYAAIMGFILAHKARKLARLTKEERLKKLCELYAKVLGSLEALEPVHYEEKNWCEEQYSGGCYTTYFPPGILTQYGRVLRQPVDRIYFAGTETATHWSGYMEGAVEAGERAAREILHAMGKIPEDEIWQSEPESVDVPAQPITTTFLERHLPSVPGLLRLIGLTTIFSATALGFLAHKRGLLVRV
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| Gene Name | MAOB | ||||||||
| Uniprot ID | AOFB_HUMAN | ||||||||
| KEGG Pathway | hsa:4129 | ||||||||
| Protein Family | Flavin monoamine oxidase family | ||||||||
| Protein Function |
Catalyzes the oxidative deamination of primary and some secondary amines such as neurotransmitters, and exogenous amines including the tertiary amine, neurotoxin 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP), with concomitant reduction of oxygen to hydrogen peroxide and participates in the metabolism of neuroactive and vasoactive amines in the central nervous system and peripheral tissues (PubMed:11134050, PubMed:8665924, PubMed:8316221, PubMed:11049757, PubMed:20493079). Preferentially degrades benzylamine and phenylethylamine (PubMed:11134050, PubMed:8665924, PubMed:8316221, PubMed:11049757, PubMed:20493079).
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| Mechanism Description |
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| Additive CNS depression effects Click to Show/Hide Mechanism Graph | |||||||||
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| Drug Name | Doxylamine | Selegiline | |||||||
| Mechanism 2 | CNS depression effects | CNS depression effects | |||||||
| Key Mechanism Factor 3 | |||||||||
| Factor Name | CNS depression effects | ||||||||
| Factor Description | CNS depressants are drugs that inhibit or suppress brain activity and can reduce mental and physical processes. Excessive CNS depression can lead to decreased heart rate, slow breathing (less than 10 breaths per minute), extreme confusion or loss of memory, nausea and vomiting, poor judgment, blue lips or fingertips, irritability and aggression, and clammy or cold skin. | ||||||||
| Mechanism Description |
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| Recommended Action | |||||||||
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| Management | The use of doxylamine in combination with MAOIs or other agents that possess MAOI activity (e.g., furazolidone, linezolid, methylene blue, procarbazine) is considered contraindicated. At least 14 days should elapse between discontinuation of MAOI therapy and initiation of treatment with doxylamine. | ||||||||