Dextromethorphan ( DXM ), a common active ingredient found in many over-the-counter cough suppressant cold medicines, is used as a recreational drug for its often euphoric dissociative effects.

Robitussin contains an expectorant ( Guaifenesin ); Robitussin DM adds a cough suppressant ( Dextromethorphan ) to the expectorant ( Guaifenesin ); Robitussin CF is a cold formula that adds an expectorant and a nasal decongestant ; there is a nighttime-relief formula that uses a different cough suppressant, and there is a formula with codeine, available by prescription only.

Dextromethorphan is an NMDA antagonist at high doses.

* Dextromethorphan ( DXM ), the active ingredient of cough medications like Robitussin DM, is abused for its effects which are similar to ketamine and PCP.

Dextromethorphan was excluded from the Controlled Substances Act ( CSA ) of 1970 and was specifically excluded from the Single Convention on Narcotic Drugs.

Dextromethorphan has been noted to slow the development of tolerance to opioids and exert additional analgesia by acting upon the NMDA receptors ; some analgesics such as methadone and ketobemidone and perhaps piritramide have intrinsic NMDA action.

Dextromethorphan ( DXM ) may be modestly effective in decreasing cough in adults with viral upper respiratory infections.

It can also be a side effect of the anti-epileptic drugs Phenytoin and Zonisamide, and the anti-convulsant drug Lamotrigine, as well as the hypnotic drug Zolpidem and the dissociative drugs Ketamine and Dextromethorphan.

Dextromethorphan in gel cap form.

Dextromethorphan has powerful dissociative properties when administered in doses well above those considered therapeutic for cough suppression.

* Dextromethorphan FAQ at third-plateau. org

* Dextromethorphan User Forums at Fourth-plateau. org

** Others: Brompheniramine, Chlorpheniramine, Cocaine, Cyclobenzaprine, Dextromethorphan ( DXM ), Ketamine, MDPV, Nefazodone, Phencyclidine ( PCP ), Pheniramine, Sibutramine, Trazodone.

* Dissociatives ( Dextromethorphan, ketamine, phencyclidine, nitrous oxide, etc.

Dextromethorphan, a common antitussive often found in cough medicines, has been shown to cause vacuolization in rats ' brains when administered at doses of 75 mg / kg.

** Excluding Dextromethorphan ( DXM ), Dextrorphan, etc.

Let me pass over the trip to Sante Fe with something of the same speed which made Mrs. Roebuck `` wonduh if the wahtahm speed limit '' ( 35 m.p.h. ) `` is still in ee-faket ''.

Even though in most cases the completion of the definitive editions of their writings is still years off, enough documentation has already been assembled to warrant drawing a new composite profile of the leadership which performed the heroic dual feats of winning American independence and founding a new nation.

Truman Capote is still reveling in Southern Gothicism, exaggerating the old Southern legends into something beautiful and grotesque, but as unreal as -- or even more unreal than -- yesterday.

He is still concerned, however, with a personal event.

nearby, another sits motionless, while still another is twirling an umbrella.

We are desperately in the need of such invention, for man is still very much at the mercy of man.

There is still the remote possibility of planetoid collision.

Even in domains where detailed and predictive understanding is still lacking, but where some explanations are possible, as with lightning and weather and earthquakes, the appropriate kind of human action has been more adequately indicated.

Each is still glorified as a national hero.

This favorable image of America in the minds of Russian men and women is still there despite years of energetic anti-American propaganda ''

Incest is still a durable theme, but if it wants to get written about it will have to find ways to surprise the emotions, and there is no better way to do this than that of concealment and symbolic representation.

If many of the characters in contemporary novels appear to be the bloodless relations of characters in a case history it is because the novelist is often forgetful today that those things that we call character manifest themselves in surface behavior, that the ego is still the executive agency of personality, and that all we know of personality must be discerned through the ego.

Even if people do, in a not far distant future, begin to read one another's minds, there will still be the question of whether what you find in another man's mind is especially worth reading -- worth more, that is, than what you can read in good books.

There is another side of love, more nearly symbolized by the croak of the mating capercailzie, or better still perhaps by the mute antics of the slug.

But still, the proposition is worth examination.

The other is that the charge for cabanas and parasols, though modest from an American point of view, still is a little high for many Athenians.

In spite of the armistice negotiated by Amadee two years earlier, the war between Bishop Guillaume of Lausanne and Louis of Savoy was still going on, and although little is known about it, that little proves that it was yet another phase of the struggle against French expansion and was closely interwoven with the larger conflict.

Behind him lay the Low Countries, where men were still completing the cathedrals that a later Florentine would describe as `` a malediction of little tabernacles, one on top of the other, with so many pyramids and spires and leaves that it is a wonder they stand up at all, for they look as though they were made of paper instead of stone or marble '' ; ;

On the other hand, the consensus of opinion is that, used with caution and in conjunction with other types of evidence, the native sources still provide a valid rough outline for the English settlement of southern Britain.

The image of man which enters into force with Aeschylus is still vital in Phedre and Athalie.

for, in either event, the first possibility is excluded.

Certain specific conditions are excluded as disabilities, such as current substance abuse and visual impairment that is correctable by prescription lenses.

In the congress of 371 BC an altercation is recorded between him and the Theban general Epaminondas, and due to his influence Thebes was peremptorily excluded from the peace, and orders given for Cleombrotus to march against Thebes in 371 BC.

This way any ( unmodulated ) radiation emitted for example by the atomizer can be excluded, which is imperative for LS AAS.

But the literary evidence for the history of this period is so thin that it cannot be excluded that the Bastarnae clashed with Rome during it.

Jerome's Prologue to Jeremiah says he excluded them: " And the Book of Baruch, his scribe, which is neither read nor found among the Hebrews, we have omitted, standing ready, because of these things, for all the curses from the jealous, to whom it is necessary for me to respond through a separate short work.

The scope of RoHS 2 is widened to include products previously excluded, such as medical devices and industrial equipment.

The Roman Breviary has undergone several revisions: The most remarkable of these is that by Francis Quignonez, cardinal of Santa Croce in Gerusalemme ( 1536 ), which, though not accepted by Rome ( it was approved by Clement VII and Paul III, and permitted as a substitute for the unrevised Breviary, until Pius V in 1568 excluded it as too short and too modern, and issued a reformed edition ( Breviarium Pianum, Pian Breviary ) of the old Breviary ), formed the model for the still more thorough reform made in 1549 by the Church of England, whose daily morning and evening services are but a condensation and simplification of the Breviary offices.

For international banks, including the 55 member central banks of the Bank for International Settlements, the threshold is 8 % ( see the Basel Capital Accords ) of risk-adjusted assets, whereby certain assets ( such as government bonds ) are considered to have lower risk and are either partially or fully excluded from total assets for the purposes of calculating capital adequacy.

In turn, when B is replaced with a list of attached atoms, A itself is excluded in accordance with the general principle of not doubling back along a bond that has just been followed, but a ghost atom for A is included so that the double bond is properly represented from both ends.

The green box in the middle is not a clade, but rather represents an evolutionary grade, an incomplete group, because the blue clade at left is common descent | descended from it, but is excluded.

This water of solvation is not active in osmosis and may have different solvent properties, so that some dissolved molecules are excluded, while others become concentrated.

Cyril is well-known due to his dispute with Nestorius and his supporter Patriarch John of Antioch, whom Cyril excluded from the Council of Ephesus for arriving late.

Musiqi is the Persian word for the science and art of music, muzik being the sound and performance of music ( Sakata 1983, ), though some things European influenced listeners would include, such as Quran chanting, are excluded.

One of the reasons for using more HIV tests despite their expense is that, rather than overestimating AIDS as Duesberg suggests, the Bangui definition alone excluded nearly half of African AIDS patients.

It is commonly said that Judaism officially excluded the deuterocanonicals and the additional Greek texts listed here from their Scripture in the Council of Jamnia ( c. 70-90 AD ), but this claim is also disputed.

" Indeed, discrete mathematics is described less by what is included than by what is excluded: continuously varying quantities and related notions.