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Isoxsuprine (Oral, Injection)

Generic name: isoxsuprine

Brand names: Vasodilan

Last updated November 10, 2025 0 views
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Uses for isoxsuprine

Isoxsuprine is part of a group of medicines known as vasodilators. Vasodilators help to widen blood vessels. Isoxsuprine is used to treat issues caused by poor blood circulation.

It may also be used for other conditions as decided by your doctor.

Isoxsuprine is available only with a prescription from your doctor.

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Precautions while using isoxsuprine

It may take some time for Isoxsuprine (Oral, Injection) to work. If you feel that isoxsuprine is not working, do not stop taking it on your own. Instead, check with your doctor.

The helpful effects of Vasodilan may be decreased if you smoke. If you have any questions about this, check with your doctor.

Dizziness may occur, especially when you get up from a lying or sitting position or climb stairs. Getting up slowly may help. If this problem continues or gets worse, check with your doctor.

This section was rewritten for readability and reviewed for meaning.

Before using isoxsuprine

In deciding to use a medicine, you and your doctor need to consider the risks of taking the medicine against the benefits it will provide. The following factors should be taken into account for this medicine:

Allergies

Inform your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also, let your healthcare professional know if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.

Geriatric

Many medicines have not been studied specifically in older adults. So, it may not be clear whether they work the same way in older people as they do in younger adults or if they cause different side effects or issues in older adults. There is no specific information comparing the use of isoxsuprine in the elderly with its use in other age groups. However, isoxsuprine may reduce tolerance to cold temperatures in elderly patients.

Breast Feeding

There are no adequate studies in women to determine the risk to infants when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.

Interactions with Medicines

Some medicines should not be used together at all, while in other cases, two different medicines may be used together even if an interaction might happen. In these situations, your doctor may need to adjust the dose or take other precautions. Inform your healthcare professional if you are taking any other prescription or nonprescription (over-the-counter [OTC]) medicine.

Interactions with Food/Tobacco/Alcohol

Some medicines should not be taken at or around the time of eating food or certain types of food due to potential interactions. Using alcohol or tobacco with certain medicines may also lead to interactions. Talk with your healthcare professional about using your medicine with food, alcohol, or tobacco.

Other Medical Problems

Having other medical issues may affect the use of this medicine. Be sure to inform your doctor if you have any other medical conditions, especially:

  • Angina (chest pain) or
  • Bleeding problems or
  • Glaucoma or
  • Hardening of the arteries or
  • Heart attack (recent) or
  • Stroke (recent)—This may increase the chance of side effects.

This section was rewritten for readability and reviewed for meaning.

Side Effects of isoxsuprine

Along with its necessary effects, a medicine may cause some unwanted effects. Not all of these side effects will occur, but if they do, they may need medical attention.

Check with your doctor as soon as possible if any of the following side effects occur:

Rare

  • Chest pain
  • Dizziness or faintness (more common for injection)
  • Fast heartbeat (more common for injection)
  • Shortness of breath
  • Skin rash

Some side effects may happen that usually do not need medical attention. These side effects may go away during treatment as your body gets used to the medicine. Also, your health care professional may be able to tell you how to prevent or lessen some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

Less common

  • Nausea or vomiting (more common for injection)

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

In the U.S.

  • Vasodilan

Available Dosage Forms:

  • Tablet

Therapeutic Class: Peripheral Vasodilator

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Proper use of isoxsuprine

If this medicine upsets your stomach, it may be taken with meals, milk, or antacids.

Dosing

The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.

The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.

  • For oral dosage form (tablets): For poor blood circulation: Adults—10 to 20 milligrams (mg) three or four times a day.

Missed Dose

If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.

Storage

Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.

Keep out of the reach of children.

Do not keep outdated medicine or medicine no longer needed.

Related medicines

Before you take this medicine: the information on this page is general and may not cover your personal circumstances. Read the label supplied with your medicine and ask a pharmacist or doctor if you are unsure, especially if you are pregnant, breastfeeding, taking other medicines or managing a long-term condition.
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Content is provided for education and is not medical advice. See our medical disclaimer.