Keflex side effects: Keflex is a cephalosporin antibiotic. This antibiotic can commonly cause gastrointestinal side effects like diarrhea, nausea, vomiting and sometimes, headaches. Serious side effects include anaphylactic reactions, decrease in blood cells and liver disease. ...Read more.
1 Vitamin E is an antioxidant for cardiovascular health, a blood thinner, improves circulation and is also an anti-inflammatory. 2  CoQ10 is an important nutrient for the circulation, especially if you suffer from high cholesterol or high blood pressure.
Hand holding vitamins Photo Credit AlexKalina/iStock/Getty Images. 1  The circulation of blood into and out of the heart is critical for health. Blood flows throughout the body courtesy of the pumping action of the heart. 2  Niacin is one of the eight B vitamins.