Search results
Results from the WOW.Com Content Network
Anticholinergics generally have antisialagogue effects (decreasing saliva production), and most produce some level of sedation, both being advantageous in surgical procedures. [8] [9] Until the beginning of the 20th century, anticholinergic drugs were widely used to treat psychiatric disorders. [10]
These receptors mediate both the psychoactive and the somatic effects of opioids. Partial agonists, like the anti-diarrhea drug loperamide and antagonists, like naloxegol for opioid-induced constipation, do not cross the blood–brain barrier, but can displace other opioids from binding to those receptors in the myenteric plexus.
Secondly, MAOIs can cause serious side effects when mixed with certain foods, including life-threatening hypertensive crisis. MAOIs and TCAs generally have more side effects than SSRIs. TCAs in particular have anticholinergic side effects such as constipation and blurred vision, whereas SSRIs have fewer anticholinergic side effects. [14]
The toxic effects mediated by the metabolites cannot be countered with opioid receptor antagonists such as naloxone or naltrexone, and are probably primarily due to norpethidine's anticholinergic activity probably due to its structural similarity to atropine, though its pharmacology has not been thoroughly explored.
Dosing of all opioids may be limited by opioid toxicity (confusion, respiratory depression, myoclonic jerks and pinpoint pupils), seizures , but opioid-tolerant individuals usually have higher dose ceilings than patients without tolerance. [19] Opioids, while very effective analgesics, may have some unpleasant side-effects.
Additionally, many medications – both prescribed and over-the-counter - have common side effects, such as lightheadedness or confusion, that can lead to falls, so it is important for people to ...
By being excluded from the CNS, drugs may act on the rest of the body without producing side-effects related to their effects on the brain or spinal cord. For example, most opioids cause sedation when given at a sufficiently high dose, but peripherally selective opioids can act on the rest of the body without entering the brain and are less ...
While a single dose has a rapid effect, maximum effect can take up to five days of use. [7] [12] After long-term use, in people with normal liver function, effects last 8 to 36 hours. [7] [9] Methadone is usually taken by mouth and rarely by injection into a muscle or vein. [7] Side effects are similar to those of other opioids. [7]