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Doctor insights on: Cetirizine Pseudoephedrine Side Effects

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Claritin (loratadine) side effects?

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

Dr. John Chiu
571 doctors shared insights

Cetirizine (Definition)

Ceftirizine is the generic name of an antihistamine previously marketed under the ...Read more


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Side effects from claritin (loratadine)?

Side effects from claritin (loratadine)?

Feeling tired: Fatigue is the most common side effect followed by abdominal pain, headache and dry mucous membranes. More rare but serious side effects include allergic reaction/anaphylaxis, bronchospasm or liver toxicity. ...Read more

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Levocetirizine vs.Desloratadine side effects?

Levocetirizine vs.Desloratadine side effects?

Usually mild: Both are very good antihistamines. Desloratadine: headache, upset stomach, dizziness, sore throat, dry mouth, muscle pain, extreme tiredness, painful menstruation. Levocetirizine: sleepiness, tiredness, weakness, sore throat, dry mouth, fever, cough, nosebleed. ...Read more

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Allegra-d side effects?

Allegra-d side effects?

Insomnia, jitters: Allegra d contains 2 drugs. Fexofenadine usually has few side effects, but can be drying to the nasal membranes and mouth, and can have side effects, so check further if you have some. The d portion, on the other hand, is sudafed, and it commonly causes jitters, insomnia, fast heart rate, nausea and headache. It can raise the blood pressure and cause arrhythmias. ...Read more

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Side effects of sudafed decongestant?

Side effects of sudafed decongestant?

Palpitations, rapid: Heart beat, dryness of mouth, dizziness and at times agitation. It may also cause tiredness/sleepiness in some. ...Read more

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Side effects of clarinex (desloratadine)?

Side effects of clarinex (desloratadine)?

Sie effects: Dry mouth or throat, headache, fatigue, myalgias, nausea, dizzyness, the incidence of these side effects is low, often in the range of placebo or control medication. ...Read more

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Side effects of benadryl (diphenhydramine)?

Side effects of benadryl (diphenhydramine)?

Dried up and sleepy: Why would you want to take benadry (the brand name for diphenhydramine) long term? Fagetaboutit. Side effects are drying of mucous membrane, drowsiness, fatigue, difficulty urinating... ...Read more

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Side effects of sudafed?

Many: Possible side effects include fast or irregular heart beats, tremor, restlessness, insomnia, nausea, vomiting, feeling nervous, high blood pressure, and more. ...Read more

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Side effects of taking two claritin (loratadine)?

Side effects of taking two claritin (loratadine)?

Not much: Many people are prescribed antihistamines at greater than standard doses to treat various conditions. Taking two of the standard 10mg tablets should not do much other than possibly make you sleepy. If you are going to take two don't drive or plan on working after you take them. ...Read more

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Any bad side effects of zyrtec (cetirizine)?

Any bad side effects of zyrtec (cetirizine)?

Sleepiness: 10% of the patients will experience sleepiness.Best time to take it is at bedtime to cut down this side effect. ...Read more

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Ephedrine (ephedrine sulfate) side effects and risks?

Ephedrine (ephedrine sulfate) side effects and risks?

Cardiac: Ephedrine (ephedrine sulfate) is a form of adrenalin. It can cause increase in heart rate, elevated blood pressure and even abnormal heart rhythm. It was associated with the deaths of a major league pitcher and a college football player a few years ago. Just because something is over the counter, it may not always be safe. ...Read more

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Side effects of using zyrtec (cetirizine) for hives?

Side effects of using zyrtec (cetirizine) for hives?

Read PI: All medications that are available have included a package insert that describes what the medication is and its side effects. ...Read more

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Side effects of levocetrizine+montelukast?

Side effects of levocetrizine+montelukast?

Rare: Most of the side effects from levocetirizine is drowsiness (5% or so), montelukast is quite safe although a rare individual may complain of insomnia and even nightmare. ...Read more

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Side effects of promethazine hydrochloride?

Side effects of promethazine hydrochloride?

Seizures.: Common side effects of this antihistamine include, tardive dyskinesia, confusion in the elderly, drowsiness, dizziness, fatigue, vertigo, respiratory depression, constipation, euphoria, and short temper/irritability. Rare side effects include seizures, and neuroleptic malignant syndrome, a life-threatening neurological disorder. Because of capacity for more severe side effects, avoid in elderly. ...Read more

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Strange side effects of benadryl (diphenhydramine)?

Strange side effects of benadryl (diphenhydramine)?

Several: The most common side effect of taking too much Benadryl (diphenhydramine) would be excessive drowsiness. Other possible side effects include dizziness, headache, constipation, urinary retention, and heart palpitations. ...Read more

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Side effects of singulair (montelukast) taken for allergies?

Side effects of singulair (montelukast) taken for allergies?

Pretty benign: Singulair (montelukast) is generally well tolerated. The biggest concern is that recent reports of psychiatric issues have been reported that would require stopping the medications. ...Read more

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Meclizine side effects?

Meclizine side effects?

Fatigue: Meclizine may cause fatigue, is related to some otc sleep aids. Rarely may produce hyperactivity but that is rare. ...Read more

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Side effects of tremadol /ultram?

Side effects of tremadol /ultram?

Usually mild: Tramadol may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away: dizziness, weakness, sleepiness, difficulty falling asleep or staying asleep, headache, nervousness, agitation, uncontrollable shaking of a part of the body, muscle tightness, changes in mood, drowsiness, heartburn or indigestion, nausea, vomiting, diarrhea, constipation & itching. ...Read more

Dr. John Chiu
549 doctors shared insights

Zyrtec (Definition)

Zyrtec is a non-sedating antihistamine which is a kind of antihistamine type drug (common ...Read more


Dr. Louis Vernacchio
404 doctors shared insights

Pseudoephedrine (Definition)

Pseudoephedrine is a decongestant which is a kind of antihistamine type drug (common ...Read more