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Astelin

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Common known side effects

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

Less common or rare

Less common or rare with azatadine, cetirizine, clemastine, cyproheptadine, desloratadine, dexchlorpheniramine, diphenhydramine, or loratadine

- Abdominal or stomach pain- burning- chills- clay-colored stools or dark urine- cough- diarrhea- difficulty swallowing- dizziness- fast or irregular heartbeat- fever- headache- hives- itching- prickly sensations- puffiness or swelling of the eyelids or around the eyes, face, lips or tongue- redness of skin- seizures- shortness of breath- skin rash- swelling- tightness in chest- tingling- unusual tiredness or weakness- wheezing

Check with your doctor as soon as possible if any of the following side effects occur:

Less common or rare

- Sore throat- unusual bleeding or bruising- unusual tiredness or weakness

Symptoms of overdose

- Clumsiness or unsteadiness- convulsions (seizures)- drowsiness (severe)- dryness of mouth, nose, or throat (severe)- feeling faint- flushing or redness of face- hallucinations (seeing, hearing, or feeling things that are not there)- shortness of breath or troubled breathing- trouble in sleeping

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common

- Drowsiness- dry mouth, nose, or throat- gastrointestinal upset, stomach pain, or nausea- headache- increased appetite and weight gain- thickening of mucus

Less common or rare

- Acid or sour stomach- belching- blurred vision or any change in vision- body aches or pain- clumsiness or unsteadiness- confusion (not with diphenhydramine)- congestion- constipation- cough- diarrhea- difficult or painful urination- difficulty in moving- difficult or painful menstruation- dizziness (not with brompheniramine or hydroxyzine)- drowsiness (with high doses of desloratadine and loratadine)- dryness of mouth, nose, or throat- early menstruation- fast heartbeat- fever- heartburn- hoarseness- increased sensitivity of skin to sun- increased sweating- indigestion- loss of appetite- joint pain- muscle aching or cramping- muscle pains or stiffness- nausea- nightmares (not with azatadine, chlorpheniramine, cyproheptadine, desloratadine, hydroxyzine, or loratadine)- ringing or buzzing in ears- runny nose- skin rash- swollen joints- stomach discomfort, upset or pain- tender swollen glands in neck- tremor- unusual excitement, nervousness, restlessness, or irritability- vomiting

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.