OTC Cough Medications and Blood Pressure Effects

Introduction to OTC Cough Medications

The American Academy of Allergy, Asthma, and Immunology notes that OTC cough medications containing decongestants (pseudoephedrine and phenylephrine) do acutely increase blood pressure, but the magnitude is generally small in most patients—approximately 1 mmHg systolic—and becomes clinically significant primarily in patients with uncontrolled hypertension or specific cardiovascular conditions 1

Meta-analysis demonstrates that pseudoephedrine increases systolic blood pressure by 0.99 mmHg (95% CI, 0.08-1.90) and heart rate by 2.83 beats/min (95% CI, 2.0-3.6), with no significant effect on diastolic blood pressure (0.63 mmHg; 95% CI, –0.10 to 1.35) in the general population 1
The American College of Cardiology states that patients with controlled hypertension can generally use pseudoephedrine safely at standard doses, though blood pressure monitoring is recommended due to interindividual variation 1

The American Heart Association advises using decongestants for the shortest duration possible and avoiding them entirely in severe or uncontrolled hypertension 2, 3
The American College of Cardiology recommends that decongestants should be avoided in patients with severe or uncontrolled hypertension 1
Patients with uncontrolled hypertension should avoid pseudoephedrine if possible; if decongestant therapy is necessary, topical nasal decongestants for short-term use under medical supervision are safer alternatives 1

The American College of Cardiology recommends screening all patients with hypertension or at risk for hypertension for OTC medications, supplements, and substances that may increase blood pressure 4
The American College of Cardiology recommends considering safer alternative therapies instead of oral decongestants, such as intranasal corticosteroids, nasal saline irrigation, second-generation antihistamines alone, and topical nasal decongestants 1, 2, 3

The American College of Cardiology recommends monitoring blood pressure closely during initiation of any new OTC medication, especially in the first weeks of treatment 4
Use decongestants for the shortest duration possible 2, 3
The American College of Cardiology recommends that patients taking pseudoephedrine for extended periods (e.g., one year) should discontinue and consider alternative therapies due to cardiovascular risks and limited evidence for long-term use 5

NSAIDs can increase blood pressure by 3-6 mmHg in patients with controlled hypertension, with effects appearing within the first weeks of treatment 4
The American College of Cardiology recommends avoiding systemic NSAIDs when possible and considering acetaminophen, tramadol, or topical NSAIDs instead 2, 4
Limit caffeine intake to <300 mg daily and avoid in patients with uncontrolled hypertension 2, 4