Adult butterflies also use color to their advantageânot only to blend in but also to warn. For instance, the adult monarch sports a bright orange color and distinctive pattern, a red flag to potential predators that it's distasteful and toxic.
Drugs to improve blood flow for people who have poor blood circulation in the veins of their legs. Background. Insufficient blood circulation in the veins of the legs might be caused by genetic factors, may occur after trauma, or may result from a blood clot. Poor movement of blood up the legs may cause swelling and puffiness, feelings of heaviness, tingling, cramps, pain, varicose veins and changes in skin pigmentation. If severe insufficient blood circulation occurs, ulcers and skin wasting can develop. Drugs such as natural flavonoids extracted from plants and similar synthetic products may improve blood circulation. These drugs are known collectively as venoactive drugs or phlebotonics.
Learn about how they work, who should take them, side effects, and natural remedies. Blood thinners are medications taken orally or intravenously (through a vein) to prevent a blood clot. Blood clots stop the flow of blood to the heart, lungs, or brain. They can cause a heart attack or stroke. Your doctor may recommend taking a blood thinner if you have heart disease, including heart valve disease and irregular heart rhythms. Blood thinners must be taken exactly as directed. When you donât take enough, the medication wonât be as effective. Taking too much can lead to severe bleeding.