Iridus belongs to a group of medicines known as peripheral vasodilators. Iridus is used to treat different types of circulatory problems. It allows your body to make better use of the oxygen in your blood.
Iridus is used to treat peripheral vascular disorders (problems with blood circulation outside the brain and heart), such as Raynaud’s syndrome, intermittent claudication, night-time muscle cramps, leg pain at rest, and some diabetic complications related to blood circulation.
The usual Iridus‘s dosage is one Capsule twice daily, for a period of 3 to 6 months.
Diarrhea, nausea, vomiting, stomach pain and skin rashes are common side effects of Iridus.
What does this page contain?
- What is Iridus and in which cases is it used?
- What information should I know before taking Iridus?
- How to take Iridus?
- What are the possible side effects?
- How to store Iridus?
- other information.
1. What Is Iridus and What It Is Used For?
Iridus is indicated in the painful manifestations of arteritis (disease of the arteries of the legs resulting in painful cramps when walking).
Poor blood flow can lead to a lack of oxygen in the body’s tissues. This causes symptoms such as pain and discomfort.
For example, poor blood flow in your legs can cause pain and discomfort when walking, a condition known as intermittent claudication.
Poor blood flow to the hands, especially in the winter, can also cause a condition called (Raynaud’s syndrome), a condition that causes pain and sometimes blueness in the hands and feet.
Iridus works by increasing blood flow to your your limbs, It also improves cell oxygen consumption.
Iridus is a peripheral vasodilator drug that provides two synergistic effects:
At the level of blood vessels: It has anti-serotonin receptor activity (5-HT2 receptors) responsible for narrowing blood vessels, which helps to increase blood flow.
At the cell level, it stimulates the production of adenosine triphosphate (ATP), which enhances the metabolism process in cells affected by local low oxygen supply.
Iridus is used to treat the following symptoms:
- Diseases that lead to poor blood supply of peripheral arteries (disease of the arteries of the legs, which causes painful cramps while walking).
- Raynaud’s syndrome (spasms of the small arteries, most common in the fingers and toes).
- Peripheral vascular disorders including intermittent claudication, night-time muscle cramps, pain at rest, primary gangrene and diabetic arterial disease.
If you suffer from painful manifestations of arteritis, it is recommended:
- to quit smoking,
- to pay particular attention to your feet (hygiene and care, wearing suitable shoes),
- to walk daily , this will help you not to have pain in the lower limbs at night or at rest, or wounds in the feet.
Iridus Improves Blood Circulation
Iridus acts as a peripheral vasodilator and is therefore used to treat peripheral vascular disorders (problems with blood circulation outside the brain and heart).
Iridus for Diabetics
Diabetes threatens patients over time with diabetic arteriopathy, which is a condition that affects patients as a result of an increase in the level of sugar in the blood over time, which reduces the blood supply to many tissues (especially the extremities or limbs).
Iridus is used to improve blood supply to different tissues in diabetic patients, which prevents atherosclerosis or disease that affects them or endangers the patient’s limbs.
Iridus for the Treatment of Muscle Spasms
This medicine is used in some cases of muscle cramps, as it helps to widen blood vessels and relax the walls of the muscles of blood vessels, which enhances blood flow through blood vessels, including oxygen and nutrients, to the affected area.
Although Iridus is used for some of these conditions, it is not a muscle relaxant or pain reliever.
Iridus for Leg Pain
Poor blood flow can lead to a lack of oxygen in the tissues of the body, which in turn causes some symptoms, including pain and discomfort.
Poor blood flow in the legs can cause pain and discomfort when walking, coldness and disorders such as Raynaud’s syndrome.
Iridus allows the body to make better use of the oxygen in the blood, which helps the patient and relieves pain.
Iridus for Treatment of Gangrene
Gangrene generally occurs as a result of a lack of blood supply to the affected body tissues, which exposes them to serious bacterial infection, which results in tissue death, and this condition usually affects the extremities (limbs).
Gangrene has degrees that start with a lack of blood supply and eventually lead to complete tissue death, which threatens the patient with losing this organ or endangering his entire life.
Iridus is used in the initial cases of gangrene for treatment. it is also used for prevention from gangrene, especially for patients who suffer from vascular disorders.
2. Before You Take Iridus?
Never take Iridus in the following cases:
- history of allergy to naftidrofuryl or to any of the other ingredients of this medication.
- known increase in the presence of certain crystals (oxalate) in the urine,
- history of recurrent kidney stones (calcium).
Warnings and Precautions
Warnings: Cases of severe liver injury (liver damage) have been reported. In case of unusual symptoms that could suggest such an attack (pallor, fatigue, nausea, anorexia, weight loss in particular), consult your doctor.
The use of this medication is not recommended in patients with galactose intolerance, Lapp lactase deficiency or glucose or galactose malabsorption syndrome (rare hereditary diseases).
Precautions for Use: Taking the drug without a drink at bedtime can lead to damage to the esophagus. It is therefore essential to always swallow Iridus Capsule with a large glass of water.
Iridus contains 38 mg of oxalate per mg Capsule, which may promote the occurrence of kidney stones in some people. It is therefore recommended to drink plenty of water for the duration of the treatment.
If in doubt, do not hesitate to seek the advice of your doctor or pharmacist.
Use of Iridus in Children: Not applicable.
Driving and using machines: Not applicable.
Other medicines and Iridus: If you are taking or have recently taken any other medicines, including medicines obtained without a prescription, tell your doctor or pharmacist.
Iridus with food and drink: Not applicable.
Safety of Iridus During Pregnancy and Breast Feeding
Ask your doctor or pharmacist for advice before taking any medicine.
There is no medical evidence to confirm that Iridus can be used safely during pregnancy, so Iridus is not recommended for pregnant women except under the supervision of a doctor to weigh the expected benefits against any expected risks.
It is not recommended to use Iridus during lactation due to the lack of medical evidence that confirms its effect during this period, and to avoid any risks to the infant.
3. HOW TO TAKE Iridus?
Dosage: The recommended dosage is: 1 Capsule, twice or 3 times a day.
FOLLOW YOUR DOCTOR’S ORDER: This medication has been prescribed for you to improve your symptoms and increase your walking distance. It must be taken in addition to the other cardiovascular prevention treatments that have been prescribed to you and the lifestyle and dietary measures that have been recommended to you (regular walking, smoking cessation, etc.).
After 6 months of treatment, consult your doctor. He will decide whether or not to continue the treatment.
Method and route of administration: Oral route. Swallow the Capsules without chewing them, always with a large glass of water.
Frequency of administration: each 12 or 8 hours during the meals.
Duration of treatment: Comply with your doctor’s prescription.
If you take more Iridus than you should: Not applicable.
If you forget to take Iridus: Do not take a double dose to make up for the dose you forgot to take. Take the next dose at the usual time.
If you have any further questions on the use of this medicine, ask your doctor or pharmacist.
4. What Are the Possible Side Effects?
Like all medicines, this medicine can cause side effects, although not everyone gets them.
- Digestive disorders (diarrhoea, nausea, vomiting, stomach pain).
- In a few patients who took the drug without drink a lot of water at bedtime, local inflammation of the esophagus may take place.
- Cases of mouth lesions (ulcerations) have been reported,
- Serious cases of liver damage have been reported
- Kidney stone (calcium oxalate)
- Rash
Declaration of side effects: If you get any side effects, talk to your doctor or pharmacist. This also applies to any adverse effects not mentioned in this page. You can also report adverse effects directly via the national reporting system at your country.
By reporting side effects, you help provide more information about the safety of the medicine.
5. HOW TO STORE Iridus?
- Keep this medication out of the sight and reach of children.
- Do not use this medicine after the expiry date which is stated on the carton after EXP. The expiry date refers to the last day of that month.
- No special storage conditions.
- Do not dispose of any medicine via wastewater or household waste. Ask your pharmacist how to throw away medicines you no longer use. These measures will help protect the environment.

6. Other Information
- Name of the drug: Iridus mg, film-coated Capsule
- Composition: Naftidrofuryl.
- Pharmacotherapeutic group: Peripheral vasodilator.
- ATC code: C04AX21
If you have any further questions, ask your doctor or pharmacist.
Please read this page carefully before taking Iridus as it contains important information for you.
Iridus has been prescribed for you. Do not give it to anyone else. It could harm them, even if their signs of illness are the same as yours.
If you get any side effects, talk to your doctor or pharmacist. This also applies to any adverse effects not mentioned in this page.