Nylidrin (Oral)

Nylidrin is part of a group of medicines known as vasodilators. Vasodilators make blood vessels larger. Nylidrin is used to treat issues caused by poor blood circulation.

Nylidrin was only available with a doctor's prescription.

Nylidrin is no longer available in the United States.

It may take some time for this medicine to work. If you feel that the medicine is not working, do not stop taking it on your own. Instead, check with your doctor.

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

In deciding to use a medicine, you need to consider the risks of taking it against the benefits it may provide. This is a decision you and your doctor will make together. For this medicine, you should think about the following:

Allergies

Inform your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also, tell your healthcare professional about any other allergies you have, 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 specifically studied in older adults. Therefore, it may not be known if they work the same way in older people as they do in younger adults or if they cause different side effects or issues. There is no specific information comparing the use of nylidrin in elderly patients with use in other age groups. However, nylidrin 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. Consider the potential benefits and 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 can be used together even if an interaction might occur. In these situations, your doctor may want 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

Certain medicines should not be used around the time of eating food or specific types of food because interactions may occur. Using alcohol or tobacco with certain medicines may also lead to interactions. Discuss with your healthcare professional about using your medicine with food, alcohol, or tobacco.

Other Medical Problems

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

• Angina (chest pain) or
• Fast heartbeat or
• Recent heart attack or other heart disease or
• Overactive thyroid gland or
• Stomach ulcer—these conditions may worsen with this medicine.

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

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

Less common

• Dizziness
• fast or irregular heartbeat
• weakness or tiredness (continuing)

Signs and symptoms of overdose

• Blurred vision
• chest pain
• decrease in urination or inability to urinate
• fever
• metallic taste

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce 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

• Chilliness
• flushing or red face
• headache
• nausea and vomiting
• nervousness
• trembling

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.

Nylidrin may cause you to have a fast or pounding heartbeat. To keep this from affecting your sleep, do not take the last dose of the day at bedtime. Instead, it is best to plan your dose or doses according to a schedule that will least affect your sleep. Ask your health care professional to help you plan the best time to take this medicine.

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): Adults: 3 to 12 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.