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Diphenhydramine is the primary constituent of dimenhydrinate and dictates the primary effect. The main differences relative to pure diphenhydramine are a lower potency due to being combined with 8-chlorotheophylline (by weight, dimenhydrinate is between 53% and 55.5% diphenhydramine) [10] and the fact that the stimulant properties of 8-chlorotheophylline help reduce the side ...
The metabolism of metoprolol can vary widely among patients, often as a result of hepatic impairment [9] or CYP2D6 polymorphism. [10] Metoprolol was first made in 1969, patented in 1970, and approved for medical use in 1978. [11] [12] [13] It is on the World Health Organization's List of Essential Medicines. [14] It is available as a generic ...
It is expected that low doses of diphenhydramine taken occasionally will cause no adverse effects in breastfed infants. Large doses and long-term use may affect the baby or reduce breast milk supply, especially when combined with sympathomimetic drugs , such as pseudoephedrine, or before the establishment of lactation.
Desoxypipradrol is closely related on a structural level to the compounds methylphenidate and pipradrol, all three of which share a similar pharmacological action. [2] Of these three piperidines, desoxypipradrol has the longest elimination half-life, as it is a highly lipophilic molecule lacking polar functional groups that are typically targeted by metabolic enzymes, giving it an extremely ...
In pharmacology, the term mechanism of action (MOA) refers to the specific biochemical interaction through which a drug substance produces its pharmacological effect. [2] A mechanism of action usually includes mention of the specific molecular targets to which the drug binds, such as an enzyme or receptor . [ 3 ]
Orphenadrine (sold under many brand names) [1] is an anticholinergic drug of the ethanolamine antihistamine class; it is closely related to diphenhydramine.It is a muscle relaxant that is used to treat muscle pain and to help with motor control in Parkinson's disease, but has largely been superseded by newer drugs.
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The mechanisms of sympathomimetic drugs can be direct-acting (direct interaction between drug and receptor), such as α-adrenergic agonists, β-adrenergic agonists, and dopaminergic agonists; or indirect-acting (interaction not between drug and receptor), such as MAOIs, COMT inhibitors, release stimulants, and reuptake inhibitors that increase the levels of endogenous catecholamines.