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Drugs acting on the respiratory system, Five-membered rings


Cyclic compounds (35)
Respiratory system drug (30)
Drugs acting on the nervous system (19)
Psychoactive drugs (19)
Antihistamines (15)
H1 receptor antagonists (15)
Pharmaceuticals (12)
Antitussives (9)
Pyrrolidines (7)
Six-membered rings (7)
Thiophenes (7)
Imidazolines (6)
Alcohols (5)
Amines (5)
Bases (chemistry) (5)
Dioxolanes (5)
Halides (5)
Organohalides (5)
Decongestants (4)
Organoiodides (4)
Pyridines (4)
Consumer Ingredients (3)
Drugs acting on the cardiovascular system (3)
Piperidines (3)
Psychoanaleptics (3)
Stimulants (3)
Alkene derivatives (2)
Alkenes (2)
Aromatic compounds (2)
Chloroarenes (2)
Cycloalkanes (2)
Cyclopentanes (2)
Ethers (2)
Expectorants (2)
Furans (2)
Oxadiazoles (2)
Topical decongestants (2)
Xanthines (2)
Acids (1)
Antiarrhythmic agents (1)
Antiasthmatic drugs (1)
Beta-adrenergic agonists (1)
Beta2-adrenergic agonists (1)
Bronchodilators (1)
Carboxylic acids (1)
Chalcogenides (1)
Dermatologic drug (1)
Dermatologic drugs (1)
Inotropic agents (1)
Isoxazoles (1)
Monoamine releasing agents (1)
Norepinephrine-dopamine releasing agents (1)
Organic acids (1)
Organic compound (1)
Organobromides (1)
Potassium channel blockers (1)
Respiratory agents (1)
Sulfides (1)
Tetrazoles (1)
Thiazoles (1)
Thiazolidines (1)
Thioethers (1)
Vasoconstrictors (1)


AK Scientific (3)
Sigma Aldrich (3)
TCI Chemicals (1)

METHDILAZINE (1982-37-2)  
methdilazine hydrochloride
Methdilazine (Dilosyn, Tacaryl) is a first-generation antihistamine with anticholinergic properties of the phenothiazine class.
antazoline (91-75-8)  
Antistine  ·  Antazoline Phosphate  ·  Antazoline Hydrochloride
Antazoline is a 1st generation antihistamine with anticholinergic properties used to relieve nasal congestion and in eye drops, usually in combination with naphazoline, to relieve the symptoms of allergic conjunctivitis. To treat allergic conjunctivitis, antazoline can be combined in a solution with tetryzoline. The drug is a Histamine H1 receptor antagonist: selectively binding to but not activating the receptor, thereby blocking the actions of endogenous histamine and subsequently leading to the temporary relief of the negative symptoms brought on by histamine.
methapyrilene (91-80-5)  
Thionylan  ·  Lullamin  ·  Tenalin
tetrahydrozoline (84-22-0)  
Visine  ·  tetrahydrozoline hydrochloride  ·  Tyzine
Tetryzoline (INN; also known as tetrahydrozoline), a derivative of imidazoline, is found in over-the-counter eye drops and nasal sprays. Other derivatives include naphazoline, oxymetazoline, and xylometazoline. Tetrahydrozoline is an alpha agonist and its main mechanism of action is the constriction of conjunctival blood vessels.
Pemirolast (69372-19-6, 100299-08-9)  
Pemirolast (INN) is a mast cell stabilizer used as an anti-allergic drug therapy. It is marketed under the tradenames Alegysal and Alamast. Clinical trials studying treatments for allergic conjunctivitis have found that an ophthalmic solution containing levocabastine with pemirolast potassium may be more effective in alleviating symptoms than levocabastine alone.
xylometazoline (526-36-3)  
stas  ·  Balkis  ·  Nasan
Xylometazoline, also spelled xylomethazoline, is a medication which is used to improve symptoms of nasal congestion, allergic rhinitis, and sinusitis. Use is not recommended for more than seven days. Use is also not recommended in those less than three months of age and some say not less than 6 years of age.
naphazoline (835-31-4)  
All Clear  ·  Clear Eyes  ·  Privine
Naphazoline (in the hydrochloride form) is the common name for 2-(1-naphthylmethyl)-2-imidazoline hydrochloride. It is a sympathomimetic agent with marked alpha adrenergic activity. It is a vasoconstrictor with a rapid action in reducing swelling when applied to mucous membrane.
Chloropyrilene (148-65-2)  
Chlorothen (trade name Thenclor) is an antihistamine and anticholinergic.
DOXOFYLLINE (69975-86-6)  
2-(7'-theophyllinemethyl)1,3-dioxolane  ·  doxophylline  ·  TMDO
Doxofylline (also known as doxophylline) is a xanthine derivative drug used in the treatment of asthma.
carbetapentane (77-23-6, 1406-98-0)  
carbetapentane citrate  ·  pentoxyverine  ·  carbetapentane 1,5-napthalenedisulfonate (2:1)
Pentoxyverine (rINN) or carbetapentane is an antitussive (cough suppressant) commonly used for cough associated with illnesses like common cold. It is sold over-the-counter in the United States as Solotuss, or in combination with other medications, especially decongestants. One such product is Certuss, a combination of guaifenesin and pentoxyverine.
Antergan (961-71-7)  
Phenbenzamine (Antergan) is an antihistamine with anticholinergic properties.
Thenyldiamine is an antihistamine and anticholinergic.
Cyclopentamine (102-45-4)  
Cyclopentamine (trade names Clopane, Cyclonarol, Cyclosal, Cyklosan, Nazett, Sinos, among others) is a sympathomimetic alkylamine, classified as a vasoconstrictor. Cyclopentamine was indicated in the past as an over-the-counter (OTC) medication for use as a nasal decongestant, notably in Europe and Australia, but has now been largely discontinued possibly due to the availability, effectiveness, and safety of a structurally similar drug, propylhexedrine.
Stepronin (72324-18-6)  
Broncoplus  ·  stepronine lysine salt  ·  2-(alpha-thenoylthio)propionylglycine
Stepronin is a mucolytic and expectorant.
Thenalidine (86-12-4)  
thenaldine  ·  1-methyl-4-(N-2-thenylanilino)piperidine
Thenalidine is an antihistamine with anticholinergic properties used as an antipruritic drug. It was withdrawn from the US, Canadian, and UK markets in 1963 due to a risk of neutropenia.
Prenoxdiazine (47543-65-7)  
Prenoxdiazine (marketed as Libexin) is a cough suppressant.
Clemizole (442-52-4)  
Clemizole is an H1 antagonist.
Oxolamine (959-14-8)  
Bredon  ·  Oxobron  ·  5-diethylaminoethyl-3-phenyl-1,2,4-oxadiazole
Oxolamine is a cough suppressant that is available as a generic drug in many jurisdictions.
Tipepidine (5169-78-8)  
Tipepidine (INN) (brand names Asverin, Antupex, Asvelik, Asvex, Bitiodin, Cofdenin A, Hustel, Nodal, Sotal), also known as tipepidine hibenzate (JAN), is a synthetic, non-opioid antitussive and expectorant of the thiambutene class. It acts as an inhibitor of G protein-coupled inwardly-rectifying potassium channels (GIRKs). The drug was discovered in the 1950s, and was developed in Japan in 1959.
Domiodol (61869-07-6)  
Domiodol is a mucolytic and expectorant.
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