Antihypertensive effects of aspirin: what is the evidence?
Nonsteroidal anti-inflammatory drugs are known to increase blood pressure and blunt the effect of antihypertensive drugs. Surprisingly, it has been suggested recently that aspirin lowers blood pressure and could be used for preventing hypertension. This review summarizes published data on the effects of aspirin on blood pressure. Trials suggesting that aspirin administered at bedtime lowers blood pressure are uncontrolled, unmasked, and potentially biased. They also conflict with cohort studies showing an 18% increase in the risk of hypertension among aspirin users. Fortunately, short-term use of aspirin does not seem to interfere with antihypertensive drugs. Regardless of its effect on blood pressure, low-dose aspirin effectively prevents cardiovascular events in patients with and without hypertension, but its benefits should be carefully weighed against a potential increase in the risk of adverse effects such as gastric bleeding and hemorrhagic stroke, as well as a small increase in the risk of hypertension.
Bautista
Leonelo E
LE
Population Health Sciences, University of Wisconsin Medical School, 610 Walnut Street, 703 WARF, Madison, WI 53726-2397, USA. lebautista@wisc.edu
Vera
Lina M
LM
D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000494:pharmacology / Q000627:therapeutic use*; D000959:Antihypertensive Agents / Q000494:pharmacology / Q000627:therapeutic use*; D001241:Aspirin / Q000494:pharmacology / Q000627:therapeutic use*; D001794:Blood Pressure / Q000187:drug effects; D019317:Evidence-Based Medicine; D006801:Humans; D006973:Hypertension / Q000188:drug therapy*; D010975:Platelet Aggregation Inhibitors / Q000494:pharmacology / Q000627:therapeutic use*; D012306:Risk; D012307:Risk Factors
D000894:Anti-Inflammatory Agents, Non-Steroidal; D000959:Antihypertensive Agents; D010975:Platelet Aggregation Inhibitors; D001241:Aspirin