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Doctor insights on: Dimetane Sedating Antihistamine

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Dr. Chad Levitt
63 doctors shared insights

Brompheniramine Maleate (Definition)

Brompheniramine maleate is an ocular carbonic anhydrase enzyme blocker which is a kind of ...Read more


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Can Claritin (loratadine) non-drowsy antihistamine still cause drowsiness?

Can Claritin (loratadine) non-drowsy antihistamine still cause drowsiness?

Yes: Claritin is a second generation antihistamine which causes much less drowsiness than first generation antihistamine, like benadryl (diphenhydramine). The number of people who feel drowsy on Claritin is so low that it is labeled "non-drowsy". But each of us is unique. I have plenty of patients who feel drowsy on claritin, especially petite women. ...Read more

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Is Claritin comparable to benadryl (diphenhydramine)?

Is Claritin comparable to benadryl (diphenhydramine)?

Both AH: Both act in similar fashion except that Benadryl (diphenhydramine) causes drowsiness and dry mouth in a much higher percentage of people and it works for just a few hours vs claritin's nearly 24 hours duration of action. ...Read more

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Is loratadine like benadryl (diphenhydramine)?

Is loratadine like benadryl (diphenhydramine)?

Kinda mostly: Loratadine is a 'non-sedating antihistamine, ' and Diphenhydramine (/benadryl) is a sedating antihistamine (aka: older / h1 & h2 blocker), so yes, they are close cousins in intended effects--just differ in side effects. ...Read more

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Is zyrtec or polaramine (dexchlorpheniramine maleate) stronger?

Is zyrtec or polaramine (dexchlorpheniramine maleate) stronger?

Zyrtec (cetirizine): Polaramine (dexchlorpheniramine maleate) (dexchlorpheniramine) is an older antihistamine that is not used as often due to dosing every 8 hours and side effects (impaired driving ability). Effectiveness of polaramine (dexchlorpheniramine maleate) was similar to Claritin (loratadine) while a study in healthy adults showed zyrtec (cetirizine) to be a better antihistamine than polaramine (dexchlorpheniramine maleate). Go to: http://www.Ncbi.Nlm.Nih.Gov/pubmed/2972549. ...Read more

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Which is best zyrtec allegra (fexofenadine) claranex?

Which is best zyrtec allegra (fexofenadine) claranex?

Depends: All 3 of the mentioned new generation antihistamines (zyrtec, allegra, (fexofenadine) clarinex) are effective for treating allergic rhinitis and hives. What's interesting is that each individual person may respond better to one over the other. While every allergist probably has his/her favorite, truth is...They all work. If not happy with one, try a different one! ...Read more

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Chlorpheniramine maleate or allegra (fexofenadine) which is safer?

Chlorpheniramine maleate or allegra (fexofenadine) which is safer?

Both: Antihistamines are extremely safe. Any antihistamine can cause drowsiness, but second-generation antihistamines are much less likely to do so. Drowsiness with chlorpheniramine is the biggest side effect to watch for, between these two meds. ...Read more

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Itching , no rash, tried zyrtec, valium, vistaril (hydroxyzine)?

Itching , no rash, tried zyrtec,  valium, vistaril (hydroxyzine)?

Itching: You probably need to see an allergist to identify the cause of the itch. Sometimes it can be an allergy or a skin condition or an immune problem. Some tests are warranted at your age to find the problem. ...Read more

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What antihistamine would be comparable to fexofenadine (allegra)? Is Claritin (loratadine) or zyrtec comparable?

What antihistamine would be comparable to fexofenadine (allegra)?  Is Claritin (loratadine) or zyrtec comparable?

All similar: The various antihistamines such as fexofenidine, Claritin (loratadine) and zyrtec are comparable for allergy symptoms. Some people will find that one medication works better for them than another one. ...Read more

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Claritin versus Benadryl (diphenhydramine) for kids?

Claritin versus Benadryl (diphenhydramine) for kids?

Work differently: Claritin in a non-drowsy antihistamine. It doesn't cause sleepiness, but you need to use it every day for it to work really well. It's lousy for severe allergic reactions because it takes days to be fully effective. Benadryl (diphenhydramine) causes drowsiness and only lasts for six hours, but is great for severe allergic reactions and works very quickly. If you're exposed and need help now, Benadryl (diphenhydramine) is better. ...Read more

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Zyrtec vs cetirizine?

Zyrtec vs cetirizine?

Same and different: Both one and same thing antihitamine once a day pill generic vs no generic, both over the counter. Should be taken at night as it can make you sleepy. Try not to take every day every pill has side effects. ...Read more

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Is Claritin (loratadine) same as benedryl?

Is Claritin (loratadine) same as benedryl?

Not exactly: Benadryl (diphenhydramine) is diphenydramine, an old first generation antihistamines that lasts about 6 hours and can cause drowsiness and other side effects. Claritin (loratadine) is a new generation antihistamine that can last 24 hours and has less side effects. At this time, there is no real advantage to benadryl, (diphenhydramine) unless a person also wants some sleep.... ...Read more

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What is in claritin (loratadine)?Is diphenhydramine in claritin (loratadine)?

Anti histaminic: Claritin (loratadine) is a prescription anti-histaminic (anti-allergic) medication which has less of a tendency to cause sleepiness as a side effect. Diphenhydramine (benadryl) is not in Claritin (loratadine) but it is an over the counter anti-histamine of slightly higher potency than claritin, (loratadine) but a much stronger tendency to cause drowsiness. ...Read more

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Claritin (loratadine) side effects?

Pretty rare: Drowsiness & fatigue are reported by ~2% of users. Headache, abdominal pain, sore throat, diarrhea have been reported. Rare but reported side-effects include liver damage, seizures, & low platelet counts. I have been in practice for 29 years and have occasionally seen drowsiness, headache and abdominal pain associated with Claritin (loratadine) but none of the others so far and its a very commonly used drug. ...Read more

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Cani take Benadryl (diphenhydramine) with loratadine?

Cani take Benadryl (diphenhydramine) with loratadine?

Probably yes.: Many people report their 'daily' non-sedating antihistamine in the am does not provide relief until next am. So, if no concerns for gu/heart/bp/med-conflict issues, then they often take a 'sedating' antihistamine at night for continued symptom relief and 'bonus' of sleep aid effect. ...Read more

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Is vistaril (hydroxyzine) or promethazine more sedating?

Is vistaril (hydroxyzine) or promethazine more sedating?

Can't tell: It depends on the dose and how your body responds to them since either is sedating to a degree. ...Read more

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Is naphazoline hydrochloride an antihistamine?

Is naphazoline hydrochloride an antihistamine?

Not an antihistamine: Naphazoline is a vasoconstrictor and an Alpha agonist. It is not an antihistamine, although it can be combined with one. ...Read more

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Dr. Paul Carter
644 doctors shared insights

Antihistamine (Definition)

Sedating and non-sedating antihistamines prevent and treat allergic reactions, and are ...Read more


Dimetane (Definition)

Dimetane is a sedating antihistamine which is a kind of antihistamine type drug (common ...Read more