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warnings
WARNINGS General: Before prescribing any medication to suppress or modify cough, it is important that the underlying cause of the cough is identified. Check with physician if cough persists after medication has been used for 7 days or if high fever, skin rash, or continued headache, or sore throat is present with cough. Hypertensive patients should use this product only with medical advice, as they may experience a change in blood pressure due to added vasoconstriction. Sympathomimetic amines should be used judiciously and sparingly in patients with hypertension, diabetes mellitus, ischemic heart disease, increased intraocular pressure, hyperthyroidism or prostatic hypertrophy. Sympathomimetics may produce central nervous system stimulation with convulsions or cardiovascular collapse with accompanying hypotension. Do not exceed recommended dosage. If a hypertensive crisis occurs, these drugs should be discontinued immediately and therapy to lower blood pressure should be instituted. Fever should be managed by means of external cooling.
ADVERSE REACTIONS Adverse effects associated with carbetapentane citrate are rare, but nausea and/or other gastrointestinal disturbances sometimes occur. Hyperreactive individuals may display ephedrine-like reactions such as tachycardia, palpitations, headache, dizziness or nausea. Sympathomimetics have been associated with certain untoward reactions including fear, anxiety, nervousness, restlessness, tremor, weakness, pallor, respiratory difficulty, dysuria, insomnia, hallucinations, convulsions, CNS depression, arrhythmias, and cardiovascular collapse with hypotension. Guaifenesin is well tolerated and has a wide margin of safety. Side effects are generally mild and infrequent. Nausea and vomiting are the most frequently occurring side effects.