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.
This helps ease blood flow through the veins, keeping them healthy. According to a review published in the journal Free Radical Biology and Medicine, clinical trials show that vitamin E can help protect blood vessels, and a dosage of 100 to 800 international units of vitamin E per day is safe.iacin Reduces Cholesterol. Niacin, or vitamin B-3, is another vitamin important for vein health, because it can help balance blood cholesterol levels. The University of Maryland Medical Center recommends 14 to 16 milligrams for most adults and 18 milligrams for pregnant women.