Details of Drug-Drug Interaction
| Drug General Information (ID: DDIWK8XC3R) | |||||||||
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| Drug Name | Treprostinil | Drug Info | Mecamylamine | Drug Info | |||||
| Drug Type | Small molecule | Small molecule | |||||||
| Therapeutic Class | Antihypertensive Agents | Antihypertensive Agents | |||||||
| Structure | |||||||||
| Mechanism of Treprostinil-Mecamylamine Interaction (Severity Level: Moderate) | |||||||||
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| Additive hypotensive effects Click to Show/Hide Mechanism Graph | |||||||||
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| Drug Name | Treprostinil | Mecamylamine | |||||||
| Mechanism |
Antihypertensive agent Prostaglandin receptor Agonist |
Hypotensive effects Neuronal acetylcholine receptor Antagonist |
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| Key Mechanism Factor 1 | |||||||||
| Factor Name | Prostaglandin D2 receptor |
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Structure
Sequence
MKSPFYRCQNTTSVEKGNSAVMGGVLFSTGLLGNLLALGLLARSGLGWCSRRPLRPLPSVFYMLVCGLTVTDLLGKCLLSPVVLAAYAQNRSLRVLAPALDNSLCQAFAFFMSFFGLSSTLQLLAMALECWLSLGHPFFYRRHITLRLGALVAPVVSAFSLAFCALPFMGFGKFVQYCPGTWCFIQMVHEEGSLSVLGYSVLYSSLMALLVLATVLCNLGAMRNLYAMHRRLQRHPRSCTRDCAEPRADGREASPQPLEELDHLLLLALMTVLFTMCSLPVIYRAYYGAFKDVKEKNRTSEEAEDLRALRFLSVISIVDPWIFIIFRSPVFRIFFHKIFIRPLRYRSRCSNSTNMESSL
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| Gene Name | PTGDR | ||||||||
| Uniprot ID | PD2R_HUMAN | ||||||||
| KEGG Pathway | hsa:5729 | ||||||||
| Protein Family | G-protein coupled receptor 1 family | ||||||||
| Protein Function |
Receptor for prostaglandin D2 (PGD2). The activity of this receptor is mainly mediated by G(s) proteins that stimulate adenylate cyclase, resulting in an elevation of intracellular cAMP. A mobilization of calcium is also observed, but without formation of inositol 1,4,5-trisphosphate (By similarity). Involved in PLA2G3-dependent maturation of mast cells. PLA2G3 is secreted by immature mast cells and acts on nearby fibroblasts upstream to PTDGS to synthesize PGD2, which in turn promotes mast cell maturation and degranulation via PTGDR (By similarity).
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| Key Mechanism Factor 2 | |||||||||
| Factor Name | Neuronal acetylcholine receptor | Structure Sequence | |||||||
| Protein Family | Ligand-gated ion channel (TC 1.A.9) family | ||||||||
| Protein Function |
After binding acetylcholine, the AChR responds by an extensive change in conformation that affects all subunits and leads to opening of an ion-conducting channel across the plasma membrane.
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| Mechanism Description |
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| Recommended Action | |||||||||
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| Management | While therapies that target the prostacyclin pathway have been used in combination with diuretics, antihypertensives, or other vasodilators in the management of pulmonary arterial hypertension, caution is recommended if they must be administered concurrently. If these drugs are used together, it is generally recommended that blood pressure be measured more frequently until a stable blood pressure pattern is observed. Patients should be advised to avoid rising abruptly from a sitting or recumbent position and to notify their doctor if they experience dizziness, lightheadedness, syncope, orthostatic hypotension, or tachycardia. | ||||||||