DXM as a disassociative has similar effects to Ketamine which is a commonly used cat tranquilizer
Dexomethorphan(DXM or DM) is an antitussive (cough suppressant) drug.
Nyquil is an over-the-counter medication, meaning you do not need a prescription to obtain it. It is not illegal. No employer drug test that I know of would deny you employment for having used Nyquil (assuming you're not using it at work!). I don't even think it has components that are tested for in a standard drug test.
dxm as it's known or dextromethorphan (see wikipedia article) is a cough supressant, however it does has abuse potential as a disassociative drug when taken in high doses by itself.
Dxm is a NMDA receptor antagonist, classifing it a disossiative drug. DXM causes Olney's Lesions in lab animals but there has never been a recorded case in humans. Whether this is a case of it not happening or just not being found yet it unknown.
Drug interaction? Seroquel is mostly used to end trips though as it makes people fall asleep. Might help if you said how many mgs of dxm/seroquel.
A prescription for example for pharmaceuticals.
Schedule G drug is a prescription drug that can be sold purely under medical prescription alone.
DXM is an acronym for the drug Dextromethorphan which can have some severe side effects if taken in excess. The ingredient DXM is commonly found in cough syrups and if taken as directed there are no dangers. However if one takes DXM in high doses some of the dangers are seizures, heart palpitations, psychosis and potentially heart failure.
At least in the United States, Vicodin is a prescription drug.
"Good prescription drug" is increasingly being seen as an oxymoron...
DXM can possibly show up in a blood test if they are testing you for it specifically. Any drug or chemical can be tested for if the people know what they are looking for. Now, is it most likely going to get you in trouble because they find out you used DXM? Most likely not. The reason for this is because DXM isn't on a blood test more than likely as it is not really considered to be a "serious drug of abuse". So i wouldn't worry about DXM showing up in a drug test. However, supposedly it is possible to give a false negative of PCP, but that isn't confirmed as far as i know.
The most common abused prescription drug has been hydrocodone for several years now. It's a very dangerous drug that is not safe to take without a prescription, but drug addicts don't care if they kill themselves, so they take stuff like that anyway.