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Chlorpheniramine
drug data and news
Chlorpheniramine drug data, resources, and news articles (when available). Onconews.org provides news on cancer research. This section, which includes profiles on medicines that may or not be cancer-related is in beta form. If things run smoothly we will be releasing a new format late in the summer of 2006.
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| Generic name | Chlorpheniramine | ||
| Brand Names/Synonyms | Aller-Chlor; Allergican; Allergisan; Antagonate; Chlo-Amine; Chlor-Trimeton; Chlor-Trimeton Allergy; Chlor-Trimeton Repetabs; Chlor-Tripolon; Chlorate; Chloropheniramine; Chlorophenylpyridamin; Chlorophenylpyridamine; Chloropiril; Chloroprophenpyridamine; Chlorphenamine; Chlorpheniramine; Chlorpheniramine Maleate; Chlorprophenpyridamine; Clorfeniramina; Cloropiril; Dexchlorpheniramine; Dexchlorpheniramine Maleate; Efidac 24 Chlorpheniramine Maleate; Gen-Allerate; Haynon; Histadur; Kloromin; Mylaramine; Novo-Pheniram; Pediacare Allergy Formula; Phenetron; Piriton; Polaramine; Polaronil; Pyridamal 100; Telachlor; Teldrin | ||
| Indication | For the treatment of rhinitis, urticaria, allergy, common cold, asthma and hay fever. | ||
| Sponsored links | Description | Not Available | |
| Pharmacology | In allergic reactions an allergen interacts with and cross-links surface IgE antibodies on mast cells and basophils. Once the mast cell-antibody-antigen complex is formed, a complex series of events occurs that eventually leads to cell-degranulation and the release of histamine (and other chemical mediators) from the mast cell or basophil. Once released, histamine can react with local or widespread tissues through histamine receptors. Histamine, acting on H1-receptors, produces pruritis, vasodilatation, hypotension, flushing, headache, tachycardia, and bronchoconstriction. Histamine also increases vascular permeability and potentiates pain. Chlorpheniramine, is a histamine H1 antagonist (or more correctly, an inverse histamine agonist) of the alkylamine class. It competes with histamine for the normal H1-receptor sites on effector cells of the gastrointestinal tract, blood vessels and respiratory tract. It provides effective, temporary relief of sneezing, watery and itchy eyes, and runny nose due to hay fever and other upper respiratory allergies. | ||
| Mechanism Of Action | Chlorpheniramine binds to the histamine H1 receptor. This blocks the action of endogenous histamine, which subsequently leads to temporary relief of the negative symptoms brought on by histamine. | ||
| Chlorpheniramine News (When available) |
Long-term risks of prednisone 06 Mar 2006 Spurious drugs banned Mar 1, 2006 FDA Joins Investigation of Infants’ Deaths Believed to Have Been ... Feb 26, 2006 HUGIN NEWS/UCB Receives EMEA Positive Opinion and FDA Approvable ... Feb 2, 2006 Sniffing? Sneezing? Think twice before medicating Feb 3, 2006 Coping with coughing Feb 15, 2006 Need help surfing cold and flu medicines? Feb 1, 2006 Epilepsy - UCB Receives EMEA Positive Opinion And FDA Approvable ... Feb 5, 2006 Sniffing? Sneezing? Think twice before medicating Feb 3, 2006 New Cough Medicine Guidelines Jan 29, 2006 No evidence cough syrups work, panel says Jan 25, 2006 Need help surfing cold and flu medicines? Feb 1, 2006 No evidence cough syrups work Jan 9, 2006 Doctors critical of cough syrups Jan 10, 2006 Spoonful of cold reality Jan 10, 2006 Some Cough Medicines May Hurt, Not Help Jan 14, 2006 In The News: Next Time, Try Soup Jan 14, 2006 Panel Sees Over-the-Counter Cough Medicines as Useless Jan 11, 2006 Children Remain Highly Vulnerable to Potentially Deadly Medication ... Jan 13, 2006 New guidelines say which drugs really kill a cough Jan 19, 2006 Updated Guidelines For Treating Coughs Jan 24, 2006 Non-prescription cough medicine won't help that cough Jan 9, 2006 Histamine blockers fight allergy symptoms Dec 4, 2005 You may not be able to find your favorite decongestant Dec 6, 2005 Infants Dying as a Result of Overdosing with Over-the-Counter Cold ... Nov 17, 2005 Mother explains horrors of local OTC drug abuse Nov 9, 2005 No Pregnant Pause Oct 10, 2005 DSHS investigating 2 deaths Sep 22, 2005 UCB's Anti-Epileptic Keppra(R) Meets Primary End-Point in ... Sep 15, 2005 UCB's Anti-Epileptic Keppra(R) Meets Primary End-Point in ... Sep 15, 2005 'Mad Max' and cough syrup link explored Aug 27, 2005 Pilot's high drug dose cited in probe of crash Jul 10, 2005 Certolizumab pegol, positive results in two Phase III Crohn'™s ... Jul 26, 2005 Sedative likely impaired pilot in fatal 2003 plane crash Jul 8, 2005 Certolizumab Pegol Demonstrates Positive Results in Two Phase III ... Jul 27, 2005 Free For All Jul 21, 2005 Over-the-Counter Medicine Cited In Fatal Crash Jul 13, 2005 FAA: Boca Raton pilot impaired by sinus meds 11 Jul 2005 FDA Approves UCB's Keppra(R) for Use in Childhood Epilepsy Jun 24, 2005 Allergy medications: Know your options Jun 25, 2005 | ||
| Dosage Forms | Tablet (chlorpheniramine maleate) | ||
| Drug_Category | Anti-allergic Agents; Antipruritics; Antihistamines; ATC:R06AB02 | ||
| Absorption | Well absorbed by gastrointestinal tract | ||
| Interactions |
Interactions for Chlorpheniramine: Substrate of CYP2D6 (minor), 3A4 (major); Inhibits CYP2D6 (weak). Increased toxicity (CNS depression): CNS depressants, MAO inhibitors, tricyclic antidepressants, phenothiazines. CYP3A4 inhibitors: May increase the levels/effects of chlorpheniramine. Example inhibitors include azole antifungals, ciprofloxacin, clarithromycin, diclofenac, doxycycline, erythromycin, imatinib, isoniazid, nefazodone, nicardipine, propofol, protease inhibitors, quinidine, and verapamil. | ||
| Toxicity | LD50 = 306 mg/kg in humans, mild reproductive toxin to women of childbearing age | ||
| Organisms Affected | Humans and other mammals | ||
| Chemical IUPAC Name | 3-(4-chlorophenyl)-N,N-dimethyl-3-pyridin-2-yl-propan-1-amine | ||
| Chemical Formula | C16H19ClN2 | ||
| Molecular Weight | 274.788 g/mol | ||
| Smiles String | CN(C)CCC(C1=CC=C(C=C1)Cl)C2=CC=CC=N2 | ||
| Melting Point | 142 oC (BP) | ||
| Water Solubility | 5.5 g/L | ||
| State | liquid or solid (as a salt) | ||
| LogP/Hphobicity | 3.563 | ||
| Isoelectric Point | 9.13 (Perrin, D.D. et al., 1965) | ||
| Biotransformation | Primarily hepatic via CYP450 enzymes. | ||
| Half Life | 21-27 hours | ||
| Protein Binding [%] | 72% | ||
| RxList Link | RXlist | ||
| Sponsored links | |||
| Drug Reference |
http://www.drugs.com/cons/Chlorpheniramine.html http://www.rxlist.com/cgi/generic3/chlorpheniramine.htm | ||
| Drug Type | Approved Drug | ||
| Accession No | APRD00001 | ||
| CAS Registry Number | 132-22-9 | ||
| KEGG Compound ID | C06905 | ||
| PubChem ID | SID:151743 | ||
| PharmGKB ID | PA448960 | ||
| SwissProt ID | Not Available | ||
| GenBank ID | Not Available | ||
| Drug ID Number [DIN] | 2265559 |
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