What are the side effects of Claritin?

Generally, Claritin refers to loratadine tablets, and its possible side effects may include drowsiness, allergic reactions, headache, nausea and vomiting, abdominal pain, diarrhea, etc. It is recommended to follow medical advice when taking this medication. Detailed analysis is as follows:

1. Drowsiness

Loratadine tablets can cross the blood-brain barrier and exert antagonistic effects on histamine receptors within the central nervous system, thereby inhibiting the awakening function of the central nervous system and causing symptoms such as drowsiness and fatigue.

2. Allergic Reaction

Individuals may have immune recognition differences to certain components of loratadine tablets. The immune system identifies these components as foreign antigens and initiates an immune response, releasing inflammatory mediators such as histamine, which can trigger allergic symptoms such as skin erythema, blisters, and itching.

3. Headache

The medication may affect the vasomotor function of cerebral blood vessels, leading to abnormal dilation or constriction of cerebral vessels, which can stimulate pain-sensitive structures within the cranial cavity, causing symptoms such as headache and dizziness. Therefore, activities requiring concentration should be avoided during medication.

4. Nausea and Vomiting

After oral administration of loratadine tablets, the medication directly irritates the gastrointestinal mucosa and may also affect normal gastrointestinal motility and secretion of digestive fluids, leading to gastrointestinal dysfunction and symptoms such as nausea and vomiting.

5. Abdominal Pain and Diarrhea

Loratadine tablets may interfere with the normal neural regulation and physiological functions of the intestines, increasing intestinal motility or mucosal secretion, thereby causing symptoms such as abdominal pain and diarrhea. It may also affect the balance of intestinal flora, indirectly causing related intestinal problems.

Before taking loratadine tablets, patients should consult a doctor in detail to understand the drug's side effects and proper usage to ensure safe medication. During the medication period, close attention should be paid to any bodily changes, and if any discomfort occurs, medical attention should be sought promptly.