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Metoprolol is a beta blocker, or an antagonist of the β-adrenergic receptors. It is specifically a selective antagonist of the β 1-adrenergic receptor and has no intrinsic sympathomimetic activity. [37] Metoprolol exerts its effects by blocking the action of certain neurotransmitters, specifically adrenaline and noradrenaline.
Beta blockers vary in their lipophilicity (fat solubility) and in turn in their ability to cross the blood–brain barrier and exert effects in the central nervous system. [76] Beta blockers with greater blood–brain barrier permeability can have both neuropsychiatric therapeutic benefits and side effects, as well as adverse cognitive effects ...
Moxonidine is a new-generation alpha-2/imidazoline receptor agonist antihypertensive drug licensed for the treatment of mild to moderate essential hypertension. [5] [6] It may have a role when thiazides, beta-blockers, ACE inhibitors, and calcium channel blockers are not appropriate or have failed to control blood pressure.
Bisoprolol, sold under the brand name Zebeta among others, is a beta blocker which is selective for the beta-1 receptor [7] and used for cardiovascular diseases, [7] including tachyarrhythmias, high blood pressure, angina, and heart failure.
Many of these symptoms may be side effects of the drug or drug interaction causing excessive levels of serotonin rather than an effect of elevated serotonin itself. Tremor is a common side effect of MDMA's action on dopamine, whereas hyperreflexia is symptomatic of exposure to serotonin agonists.
Interactions with other drugs, food and drink, and other factors may increase or decrease the effect of certain analgesics and alter their half-life. Because some listed analgesics are prodrugs or have active metabolites , individual variation in liver enzymes (e.g., CYP2D6 enzyme) may result in significantly altered effects.
Common side effects include nausea, abdominal pain, and constipation. [2] It may worsen the symptoms of asthma. [2] Propranolol may cause harmful effects for the baby if taken during pregnancy; [7] however, its use during breastfeeding is generally considered to be safe. [8] It is a non-selective beta blocker which works by blocking β ...
Timolol is a beta blocker medication used either by mouth or as eye drops. [ 3 ] [ 5 ] As eye drops it is used to treat increased pressure inside the eye such as in ocular hypertension and glaucoma . [ 3 ]