Drug General Information (ID: DDI24WQ7GU)
  Drug Name Brimonidine (ophthalmic) Drug Info Eprosartan Drug Info
  Drug Type Small molecule Small molecule
  Therapeutic Class Ophthalmic Glaucoma Agents Antihypertensive Agents
  Structure

 Mechanism of Brimonidine (ophthalmic)-Eprosartan Interaction (Severity Level: Moderate)
     Additive hypotensive effects Click to Show/Hide Mechanism Graph
Could Not Find 2D Structure
      Drug Name Brimonidine (ophthalmic) Eprosartan
      Mechanism Hypotensive effects
Alpha-2 adrenergic receptor  Agonist
Antihypertensive agent
Angiotensin II receptor  Antagonist
      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.
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      Key Mechanism Factor 2
Factor Name Angiotensin II receptor Structure Sequence
Protein Family G-protein coupled receptor 1 family
Protein Function
Receptor for angiotensin II. Mediates its action by association with G proteins that activate a phosphatidylinositol-calcium second messenger system.; (Microbial infection) During SARS coronavirus-2/SARS-CoV-2 infection, it is able to recognize and internalize the complex formed by secreted ACE2 and SARS-CoV-2 spike protein through DNM2/dynamin 2-dependent endocytosis.
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      Mechanism Description
  • Additive hypotensive effects by the combination of Brimonidine (ophthalmic) and Eprosartan 

Recommended Action
      Management Blood pressure and pulse rate should be monitored regularly when topical alpha-2 adrenergic receptor agonists are prescribed in combination with cardiovascular drugs. Patients should be advised to notify their physician if they experience slow pulse, irregular heartbeat, dizziness, lightheadedness, or syncope.

References
1 Product Information. Alphagan (brimonidine ophthalmic). Allergan Inc, Irvine, CA.
2 Product Information. Mirvaso (brimonidine topical). Galderma Laboratories Inc, Cranbury, NJ.
3 Walters TR "Development and use of brimonidine in treating acute and chronic elevations of intraocular pressure: a review of safety, efficacy, dose response, and dosing studies." Surv Ophthalmol 41 ( Suppl (1996): s19-26