openFDA text is shown for search and cross-checking; DailyMed SPL is canonical.
Warnings sections page 1 of 1 · 1 matching rows.
warnings
WARNINGS Do not exceed the recommended dosage. Patients with persistent cough such as occur with smoking, asthma, emphysema or where cough is accompanied by excessive secretions should not take this product. A persistent cough may be a sign of a serious condition. If the cough persists for more than 1 week, tends to recur, or is accompanied by fever, rash, or persistent headache, consult a doctor. Use caution when giving to children or patients with chronic pulmonary disease, shortness of breath, difficulty in breathing, asthma, emphysema, high blood pressure, heart disease, diabetes, thyroid disease or difficulty in urination due to enlargement of the prostate gland unless directed by a physician. Antihistamines may cause hyperexcitability, especially in children. At doses higher than the recommended dose, nervousness, dizziness or sleeplessness may occur. Especially in infants and small children, antihistamines in overdosage may cause hallucinations, convulsions, and death. If a hypertensive crisis occurs, these drugs should be discontiued immediately and therapy to lower blood pressure should be instituted immediately. Fever should be managed by means of external cooling.