Aug
1
Cetirizine
August 1, 2009 | Leave a Comment
Generic Name
Cetirizine (seh-TERE-ih-zene)
Brand Name Zyrtec
The information in this profile also applies to the following drugs:
Generic Ingredient: Azelastine
Generic Ingredient: Fexofenadine 91 Allegra
Generic Ingredient: Levocetirizine 91 Xyzal
Type of Drug Antihistamine.
Prescribed For
Azelastine: runny nose, sneezing, nasal itching, and post-nasal drip. Cetirizine: stuffy and runny nose, itchy eyes, and scratchy throat caused by seasonal and year-round allergy, and for other symptoms of allergy such as rash, itching, and hives; also prescribed for chronic itching and for asthma. Fexofenadine: sneezing, stuffy and runny nose; scratchy throat and mouth; and itchy, watery, and red eyes caused by seasonal allergies. Levocetirizine: stuffy and runny nose, itchy eyes, and scratchy throat caused by seasonal and year-round allergy, and for other symptoms of allergy such as rash, itching, and hives; also prescribed for chronic itching.
General Information
Antihistamines generally work by blocking the release of histamine (a chemical released by body tissue during an allergic reaction) from the cell at the H, histamine receptor site, drying up secretions of the nose, throat, and eyes. Cetirizine causes less sedation than older antihistamines and appears to be just as effective. Levocetirizine is the active portion of the cetirizine molecule and is as effective as cetirizine with a similar side effect profile.
Cautions and Warnings
Do not take cetirizine if you are allergic or sensitive to any of its ingredients.
People with kidney disease should receive reduced dosages of cetirizine and levocetirizine. Do not take these drugs if kidney disease is severe. Children with kidney disease should not receive levocetirizine.
Possible Side Effects
✓ Common: headache, drowsiness, fatigue, dry mouth, bitter taste in the mouth, dizziness, runny nose, and sore throat.
✓ Less common: nosebleeds, stuffy nose, sneezing, cough, nausea, upset stomach, changes in bowel habits, nervousness, and fever (children).
♦ Rare: fainting and weight gain. Contact your doctor if you experience any side effect not listed above.
Drug Interactions
• Cimetidine may increase the level of azelastine in the blood.
• Cetirizine is less likely than other antihistamines to interact with drugs.
• Ritonavir increases the amount of levocetirizine and slows its breakdown in the body. This may result in increased levocetirizine side effects.
Food Interactions
• Ceterizine and levocetirizine may be taken without regard to food or meals.
Usual Dose
Azelastine Nasal Spray
Adult and Child (age 12 and over): 1-2 sprays in each nostril twice a day.
Child (age 5-11): 1 spray in each nostril twice a day.
Cetirizine
Adult and Child (age 6 and over): 5-10 mg once a day depending on symptoms. Reduce dosage in people with kidney disease. Child (age 1-5): 2.5-5 mg a day.
Child (age 6 months-1 year): 2.5 mg a day.
Fexofenadine
Adult (age 12 and over): 60 mg twice a day or 180 mg once a day. People with kidney disease should take 60 mg a day.
Child (age 6-11): 30 mg twice a day.
Levocetirizine
Adult and Child (age 12 and over): 5 mg every evening.
Child (age 6-11): 2.5 mg (1h tablet) every evening. Dosage for children should not exceed 2.5 mg a day. Child (under age 6): not recommended.
Overdosage
Drug overdose is likely to cause severe side effects. Overdose victims should be Oven ipecac syrup—available at any pharmacy—to make them vomit and be taken to a hospital emergency room. ALWAYS bring the prescription bottle or container.
Special Information
Use extra caution while doing anything that requires concentration, such as driving a car or operating hazardous machinery.
Report sore throat, unusual bleeding, bruising, tiredness, weakness, or any other unusual side effect to your doctor. Do not combine these drugs with alcohol or other nervous system depressants. Do not put azelastine nasal solution into your eyes.
If you forget to take a dose of cetirizine, take it as soon as you remember. If it is almost time for your next dose, skip the one you forgot and continue with your regular schedule. Do not take a double dose.
Special Populations
Pregnancy/Breast-feeding: Oral antihistamines are generally considered safe for use during pregnancy. But do not take any antihistamine without your doctor’s knowledge if you are or might become pregnant—especially during the last 3 months of pregnancy, because newborns may have severe reactions to antihistamines.
Small amounts of antihistamine pass into breast milk. Nursing mothers who must take cetirizine should use infant formula.
Seniors: Antihistamines are more likely to cause dizziness, sleepiness, and confusion in seniors. Dosage reduction may be recommended depending on kidney function.
Jul
1
Drugs for Allergy Treatment: Allegra, Aristocort, Astelin, Atarax, Atrovent, Benadryl, Clarinex, Claritin, Flonase, Periactin, Phenergan, Prednisolone, Rhinocort, Zyrtec
July 1, 2009 | Leave a Comment
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Approved names Brand names Daily dose range
acrivastine* Semprex 24 mg
asternizole* Hismanal, Pollen-Eze 10 mg
azatadine Optimine 2-4 mg
brompheniramine Dimotane 12-32mg
cetrizine* Zirtek 10 mg
chlorpheniramine Piriton 12-24mg
clemastine Tavegil 1-2 mg
cyproheptadine Periactin 8-32 mg
loratadine* Clarityn 10 mg
mezquitazine Primalan 5-10 mg
phenindamine* Thephorin 75-150 mg
pheniramine Daneral SA 75-150mg
promethazine Phenergan 20-75 mg
terfenadine* Triludan 60-120 mg
trimeprazine Vallergan 30-100 mg
triprolidine Actidil, Pro-Actidil 7.5-15 mg
*Antihistamine with reduced sedative effects
Generic Antiallergic Medicine and Their Active Ingredients
| Product Name | Active Ingredient | |
| allegra | fexofenadine hcl | |
| allegra-d | fexofenadine-pseudophedrine | |
| aristocort | triamcinolone | |
| atarax | hydroxyzine | |
| clarinex | desloratadine | |
| claritin | loratadine | |
| danocrine | danazol | |
| dexone | dexamethasone | |
| elocon | mometasone | |
| optivar | azelastine | |
| periactin | cyproheptadine | |
| singulair | montelukast | |
| tavist | clemastine | |
| zyrtec | cetirizine |