Daflon 500 mg is a plant-based medication used primarily to treat chronic venous insufficiency (poor blood flow in the legs) and hemorrhoids. Each tablet contains 500 mg of micronized purified flavonoid fraction, a combination of naturally occurring compounds that strengthen vein walls and improve circulation. It is one of the most widely prescribed vein-supporting medications worldwide, available over the counter in many countries.
How Daflon Works
The flavonoids in Daflon act on veins in several ways. They trigger veins to contract more effectively, which helps push blood back toward the heart instead of letting it pool in the legs. At the same time, the medication reduces the leakiness of tiny blood vessels called capillaries, preventing fluid from seeping into surrounding tissue and causing swelling.
Daflon also has an anti-inflammatory effect. It reduces the tendency of white blood cells to stick to the inner walls of veins, a process that drives inflammation and tissue damage in chronic venous disease. By calming this inflammatory response, it helps protect vein walls from further deterioration and supports healing of skin changes or ulcers caused by long-standing vein problems.
Chronic Venous Insufficiency
The most common reason people take Daflon is chronic venous insufficiency, a condition where the valves inside leg veins stop working properly. Blood pools in the lower legs, leading to symptoms like heaviness, aching, swelling, restless legs, and visible varicose veins. Over time, the skin around the ankles can darken, harden, or even break down into ulcers.
For venous insufficiency, the standard dose is two tablets per day, taken in two separate doses at mealtimes (one at midday and one in the evening). Clinical trials show that leg swelling decreases significantly after about two months of consistent use, with measurable reductions in both leg circumference and volume. Symptoms like the sensation of swelling, tension, pain, heaviness, and restless legs also improve over that same timeframe. Treatment courses typically run several months, and some people take Daflon on an ongoing basis to manage chronic symptoms.
Daflon is not a replacement for compression stockings or other treatments your doctor may recommend. It works best as part of a broader approach that includes staying active, elevating your legs when resting, and wearing compression garments if advised.
Hemorrhoids
Daflon is also widely used to treat hemorrhoids, both during painful acute flare-ups and as ongoing maintenance therapy. Hemorrhoids involve swollen veins in and around the rectum, and the same vein-strengthening and anti-inflammatory properties that help leg veins also reduce hemorrhoidal swelling, bleeding, and discomfort.
The dosing schedule for an acute hemorrhoidal episode is more aggressive than for venous insufficiency. During the first four days, the dose is six tablets per day. For the following three days, it drops to four tablets per day. After the acute phase passes, many people continue with the standard two-tablets-per-day maintenance dose to help prevent recurrence. In one 2024 study, patients treated with Daflon during hemorrhoidal episodes recovered in roughly 56 days on average, about five days faster than a control group.
Common Side Effects
Daflon is generally well tolerated. The most frequently reported side effects are digestive: diarrhea, nausea, vomiting, and indigestion. These are classified as “common,” meaning they affect somewhere between 1 in 100 and 1 in 10 users. They tend to be mild and often improve as your body adjusts to the medication. Taking the tablets with food, as recommended, helps minimize stomach upset.
Serious adverse reactions are rare. Some people experience skin reactions like itching or rash, but these are uncommon. There are no widely recognized drug interactions, though it’s always worth mentioning any new medication to your pharmacist or doctor if you’re taking other treatments.
Pregnancy and Breastfeeding
Animal studies have not shown any reproductive toxicity from Daflon’s active ingredients, but human data during pregnancy is very limited. As a precaution, most prescribing guidelines recommend avoiding Daflon during pregnancy. This is particularly relevant because pregnancy itself often triggers or worsens both varicose veins and hemorrhoids, making it a time when people might consider using it.
For breastfeeding, it is unknown whether the active compounds pass into breast milk. The decision to use Daflon while nursing involves weighing the benefit of treatment against the theoretical risk to the infant, something best discussed with a healthcare provider.
What to Expect on Daflon
Daflon is not a fast-acting painkiller. For venous symptoms, most people notice gradual improvement over the first two months. Swelling tends to decrease before other symptoms like heaviness and aching fully resolve. For hemorrhoids treated with the higher loading dose, symptom relief often begins within the first week, though complete resolution takes longer.
The medication works best with consistent daily use. Skipping doses or stopping early reduces its effectiveness. If you’ve been taking Daflon for two to three months without any noticeable improvement in your symptoms, that’s a reasonable point to reassess with your doctor whether the medication is providing benefit or whether other treatment options should be explored.