Claritin Side Effects

Claritin is prescribed by doctors for the treatment of seasonal allergies and chronic hives. Claritin side effects are mild and can be treated by discontinuation of the medication. However, the drug may cause potentially life-threatening side effects such as allergic reactions. It is advisable to contact your doctor in case of severe allergic reactions. The recommended dosage of Claritin for adults and children above 6 years of age is 10mg per day. Intake of higher than recommended dosage may increase the risk of side effects and may prove fatal. Side effects associated with Claritin include:

Side Effects of Claritin


Claritin has been studied thoroughly in clinical trials. Several clinical trials indicate that the use of Claritin medication may cause drowsiness in 8 percent of patients. Several studies reported that allergies symptom may cause sleeplessness in some people. For this individual, Claritin is the best option. People driving a vehicle should be more cautious after taking medication. The Claritin medication may also cause the symptom of fatigue in some people. These symptoms may disappear after the discontinuation of the medicine.

Cardiovascular Side Effects

Several clinical trials indicate that cardiovascular side effects with Claritin medication are rare and only occur after intake of higher than the recommended dosage. The symptoms include hypertension (high blood pressure); hypertension (low blood pressure); increased heartbeat, and tachycardia (heart rate exceeds the normal range).


Another side effect of Claritin medication is a headache. The symptom has been reported in 7 percent of the treated patients. Your doctor may prescribe a pain reliever for the treatment of headaches. Your headache will be gone once the body gets adjusted to the new medication.

Drying Effect

Drying side effects of Claritin include difficulty voiding urine and stomach problem (stomach problem). People with a higher risk of urinary retention should avoid the use of Claritin medication. These people will have a risk of voiding urine. Constipation is a very common side effect and seen in a small percentage of people. For people with constipation, it is advisable to eat food rich in fibers. According to clinical trials, dry mouth is another symptom of Claritin medication and has been reported in 3 percent of treated people.

Serious Side Effects

Serious side effects are rare but when occur should seek immediate medical attention. Serious side effects associated with Claritin medication include seizures (convulsions), uneven heart rate or feeling like you may pass out; and difficulty in breathing or shortness of breath. Medication treated patients may also suffer from jaundice – a liver disorder in which the skin and eyes color turns to be yellow.

Mild Side Effects

Mild side effects associated with Claritin medication include stomach pain, diarrhea; eye redness; nose bleed, skin rash, and ore throat hoarseness. These symptoms are mild and do not necessarily seek medical attention.

Claritin Overdose

The negative side effects of Claritin overdose will vary and depend on a number of factors including the amount of dosage taken and if Claritin is taken in combination with any other allergic medications. Symptoms associated with Claritin Overdosage include severe drowsiness; heart palpitations (Feelings of a rapidly or forcefully beating heart); muscle contractions or unusual body movements; headaches; and tachycardia (rapid heart rate).


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