Benadryl (Diphenhydramine Hydrochloride) - Side Effects and Adverse Reactions

ADVERSE REACTIONS

The most frequent adverse reactions are underscored.

1. General: Urticaria, drug rash, anaphylactic shock, photosensitivity, excessive perspiration, chills, dryness of mouth, nose, and throat
2. Cardiovascular System: Hypotension, headache, palpitations, tachycardia, extrasystoles
3. Hematologic System: Hemolytic anemia, thrombocytopenia, agranulocytosis
4. Nervous System: Sedation, sleepiness, dizziness, disturbed coordination, fatigue, confusion, restlessness, excitation, nervousness, tremor, irritability, insomnia, euphoria, paresthesia, blurred vision, diplopia, vertigo, tinnitus, acute labyrinthitis, neuritis, convulsions
5. Gl System: Epigastric distress, anorexia, nausea, vomiting, diarrhea, constipation
6. GU System: Urinary frequency, difficult urination, urinary retention, early menses
7. Respiratory System: Thickening of bronchial secretions, tightness of chest or throat and wheezing, nasal stuffiness

REPORTS OF SIDE EFFECTS / ADVERSE REACTIONS RELATED TO BENADRYL

Possible Benadryl side effects / adverse reactions in 20 year old female

Reported by a individual with unspecified qualification from United States on 2007-01-12

Patient: 20 year old female

Reactions: Malaise

Adverse event resulted in: death

Suspect drug(s):
Benadryl
    Dosage: 2 ultratabs once, oral
    Administration route: Oral
    Indication: Insomnia
    Start date: 2006-12-09
    End date: 2006-12-09

Vicodin
    Indication: Pain

Possible Benadryl side effects / adverse reactions in 18 month old male

Reported by a individual with unspecified qualification from United States on 2007-01-18

Patient: 18 month old male weighing 11.8 kg (26.0 pounds)

Reactions: Facial Palsy, Crying

Suspect drug(s):
Benadryl

Other drugs received by patient: Montelukast Sodium (Montelukast Sodium)

Possible Benadryl side effects / adverse reactions in 16 year old male

Reported by a health professional (non-physician/pharmacist) from United States on 2007-01-24

Patient: 16 year old male

Reactions: Incorrect Dose Administered, Hallucination

Adverse event resulted in: hospitalization

Suspect drug(s):
Benadryl