Loratadine Side Effects
Medically reviewed by Drugs.com. Last updated on Oct 3, 2024.
Applies to loratadine: oral capsule liquid filled, oral solution, oral syrup, oral tablet, oral tablet chewable, oral tablet disintegrating.
Precautions
If your or your child's condition do not improve within a few days, or if they become worse, check with your doctor.
Serious side effects of loratadine
Along with its needed effects, loratadine 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 while taking loratadine:
Incidence not known
- drowsiness
For healthcare professionals
Applies to loratadine: oral capsule, oral syrup, oral tablet, oral tablet chewable, oral tablet disintegrating.
General adverse events
The most commonly reported side effects included headache, somnolence nervousness, and fatigue.[Ref]
Nervous system
- Very common (10% or more): Headache (up to 12%)
- Common (1% to 10%): Sedation/somnolence
- Very rare (less than 0.01%): Dizziness, convulsion
- Frequency not reported: Syncope, paresthesia[Ref]
Psychiatric
- Common (1% to 10%): Nervousness
- Uncommon (0.1% to 1%): Insomnia
- Frequency not reported: Depression, paroniria[Ref]
Other
Gastrointestinal
- Common (1% to 10%): Dry mouth
- Very rare (less than 0.01%): Nausea, gastritis
- Frequency not reported: Dyspepsia, diarrhea, constipation, abdominal/gastric pain, altered taste, increased saliva[Ref]
Metabolic
- Uncommon (0.1% to 1%): Increased appetite[Ref]
Dermatologic
- Very rare (less than 0.01%): Angioedema, rash, alopecia
- Frequency not reported: Pruritus, rash on face[Ref]
Genitourinary
- Frequency not reported: Increased frequency of urination, urine discoloration, menstruation delay[Ref]
Cardiovascular
- Very rare (less than 0.01%): Tachycardia, palpitation
- Frequency not reported: Hypertension, hypotension, chest pain[Ref]
Hypersensitivity
- Very rare (less than 0.01%): Hypersensitivity reactions, anaphylaxis[Ref]
Hepatic
- Very rare (less than 0.01%): Abnormal hepatic function[Ref]
Respiratory
- Frequency not reported: Epistaxis, nasal dryness, pharyngitis, coughing[Ref]
Musculoskeletal
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References
1. (2002) "Product Information. Claritin (loratadine)." Schering Corporation
2. Cerner Multum, Inc. "UK Summary of Product Characteristics."
3. Cerner Multum, Inc. "Australian Product Information."
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Further information
Loratadine side effects can vary depending on the individual. Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
Note: Medication side effects may be underreported. If you are experiencing side effects that are not listed, submit a report to the FDA by following this guide.