الأدوية المخدرة-الجداول

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What is Dextromethorphan used for mainly?

answer: (wikipedia)

Dextromethorphan (DXM or DM) is an antitussive (cough suppressant) drug found in many over-the-counter cold and cough medicines. Dextromethorphan has also found other uses in medicine, ranging from pain relief to psychological and neurophysical applications.

It is also a stereoisomer of levomethorphan, an opioid analgesic.
The primary use of dextromethorphan is as a cough suppressant, for the temporary relief of cough caused by minor throat and bronchial irritation (as commonly accompanies the common cold), as well as other causes such as inhaled irritants.

Additionally, a combination of dextromethorphan and quinidine has been shown to alleviate symptoms of easy laughing and crying (labile affect and euphoria) in patients with amyotrophic lateral sclerosis and multiple sclerosis.

Non-medical use

Since their introduction, over-the-counter preparations containing dextromethorphan have been used in a manner inconsistent with their labeling, often as a recreational drug.
At doses higher than medically recommended, dextromethorphan is classified as a dissociative hallucinogenic drug.
It can produce distortions of the visual field, feelings of dissociation, perceived bodily distortion, and excitement.

What do you think the difference between Tussivan and Tussilar?

Answer:

Tussilar Comp Syr.

Composition:

	Chlorpheniramine Maleate	80mg/100ml
	Dextromethorphan Hydrobromide	125mg/100ml
	Ephedrine HCl	150mg/100ml
	Guaiphenesin	1gm/100ml

Therapeutic uses:

	cough suppressant and expectorant N.B. Guaiphenesine stimulates the secretion of bronchial glands and reduces the surface tension of viscid sputum increasing its fluidity and facilitating its expectroation
		Tussivan composition: ephedrine HCL 5mg/10 ml phenylephrine HCL 5mg/10ml chlorpheneramine maleate 2mg/10ml codeine phosphate 8mg/10ml <table cellSpacing=0 cellPadding=3 width=325 border=0><tr><td class=odd vAlign=top></TD> therapeutic uses: cough suppressant <td class=odd vAlign=top align=right></TD></TR> <tr><td width=15></TD> <td class=even vAlign=top></TD> <td class=even vAlign=top align=right></TD></TR> <tr><td width=15></TD> <td class=odd vAlign=top></TD> <td class=odd vAlign=top align=right></TD></TR> <tr><td width=15></TD> <td class=even vAlign=top></TD> <td class=even vAlign=top align=right></TD></TR></TABLE>

Excellent, dextromethorphan is a synthetic derivative of morphine used
mainly for relief of cough.

Codeine,is a natural opium derivative,used also as cough sedative,
but like morphine it can lead to constipation

They are present in many of the over-the-counter products(OTC), but in low
concentrations.

Preparations that contain higher concentrations are not available as OTC

As you mentioned, Guaifenesin (written as such), fascilitates expectoration.

Ephedrine is a sypathomimetic drug, and so it causes bronchodilation.

Chlopheniramine maleate is a sedating antihistamine,and its role is to
decrease bronchial irritation by antagonizing histamine.

Thank you for your contribution.