Can Allegra 120 cause dry mouth or tiredness? I feel low after taking it.

Dear reader,

Although Allegra 120 mg is a non-drowsy antihistamine, some people do still experience side effects such as tiredness or dry mouth. This happens because individual sensitivity to antihistamines can vary.

Why You May Feel Sleepy or “Low”:

Fexofenadine is designed to have minimal impact on the central nervous system, but in some individuals, it can still cause:

• Mild drowsiness or fatigue-
  This is considered a common side effect. The “low and sleepy” feeling you described may be your body adjusting to the medication, particularly during the first few days.

Why It May Cause Dry Mouth:

• Reduced saliva production-
  Like many antihistamines, Fexofenadine can sometimes lower saliva flow, leading to a dry mouth sensation.

Things to Keep in Mind:

• Individual Sensitivity:
  Even with non-drowsy antihistamines, people react differently. Your response is not unusual.
• Safety First:
  If you are feeling sleepy, it’s best to avoid driving or operating machinery until you know how the medication affects you.
• Hydration Tips:
  Drinking water more often can help ease dry mouth symptoms.

Seek Medical Advice:

If these side effects become bothersome, persist for several days, or interfere with daily activities, consult your healthcare provider. They may adjust your dosage or recommend an alternative allergy medication.

Consult your physician about allergy panel tests that help identify the allergen. People who identify and eliminate allergen exposure usually experience a significant reduction in the need for antiallergy medications. 

Wishing you good health.