Sunday, 21 February 2016

Drug Interactions of Antihypertensives (Part 11):

Drug Interactions of Alpha 1 Blockers:




More presentations from Naina Mohamed Pakkir Maideen

©   Alpha 1 blockers include Irreversible α1 blockers (Phenoxybenzamine), Reversible α1 blockers (Imidazoline derivative - Phentolamine (α1, α2 blocker)) and α1 Selective blockers (Quinazoline Derivative – Prazosin, Terazosin and Doxazosin).
©   Alpha 1 blockers are used to treat various illnesses including Benign Prostatic Hyperplasia (BPH), Hypertension, etc.
©   Alpha 1 blockers can interact majorly with drugs such as Phosphodiesterase 5 inhibitors (Sildenafil, Tadalafil) and Asenapine.
©    Moderate interaction of Alpha 1 blockers includes Beta blockers and Yohimbine (Alpha 2 blocker).
©   Use caution when PDE 5 inhibitors for erectile dysfunction (ED) and Alpha 1 blockers are coadministered.
©   Monitor blood pressure and reduce the dosage of the Alpha 1 blockers when they are coadministered with Asenapine.
©   Monitor the patient closely for hypotension while using Alpha 1 blocker and Beta blocker concomitantly.
©   Avoid concomitant use of yohimbine and alpha-1 adrenergic blockers.
©   The patients with hypertension should bring a list of all medications they are taking including prescription drugs, over the counter (OTC) drugs and any supplements during their visit to the doctor or pharmacist.

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Drug Interactions of Thiazide Diuretics:

https://www.researchgate.net/publication/342864519_Pharmacodynamic_interactions_of_thiazide_diuretics http://www.ijmdc.com/?mno=51031...