Doctor insights on:
Chlorpheniramine Maleate Dosage
What is the dosage of Benadryl for a 23 mo. Old? He is taking chlorpheniramine maleate every 6 hrs. But hasn't taken it since yesterday.Also coughing
Benadryl: Do not use it for a 23 month old. Ask your pediatrician for something else. ...Read more
I can't find any information on the medication chlorpheniramine maleate 4mg on here, any information?
Antihistamine: Chlorpheniramine is a first generation antihistamine. It has been around for a long time and is available in a lot of over the counter medications. While effective for mild allergies it can cause drowsiness in many people. Second generation antihistamines such as Claritin (loratadine) or Allegra (fexofenadine) are often a better choice as they are non-sedating. ...Read more
That's an overdose: 32-48 mg is definitely an overdose of chlorpheniramine. The maximum over-the-counter recommended dose is 4 mg every 4-6 hours (24 mg max/day). There are extended-release forms that have higher doses, but they are also meant to last 12 hours or longer. 32-48 mg will likely cause dry mouth, eyes, etc., as well as excessive drowsiness. I don't recommend at all that high a dose. ...Read more
Very similar: Both are older antihistamines and very close in their chemical structure. The chlorpheniramine has a chlorine in it, while the pheniramine doesn't. Pheniramine is: dimethyl[3-phenyl-3-(pyridin-2-yl)propyl]amine while chlorpheniramine is 3-(4-chlorophenyl)-n, n-dimethyl- 3-pyridin-2-yl-propan-1-amine. ...Read more
Dexchloropheniramine maleate tablets have 2mg; chlorpheniramine maleate tablets had 4mg. Dex isomer's more potent? Or ploy to sell more tablets?
Tab difference: hello ~ dex~etc is a totally different substance to chlorphen~etc base. Each compound in organic chem has completely different properties, by adding free radicals (-H, -OH, -S03,-S04,-NH3,NH4) This is not a scam but dose equivalents. Do not mess with dose advised on label ! Take AS DIRECTED ! ALWAYS ! ...Read more
Closely related: Both medications are potent antihistamines. Both have similar side effects, mainly sedation and anti-cholinergic (dry mouth, larger pupils, may cause constipation and in older men, difficulty in urination. Dexchlorpheniramine requires a prescription. Its chemical structure is only minimally different from chlorpheniramine. ...Read more
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