Generic Name: betaine (BET aine)
Brand Name: Cystadane
Medically reviewed on Jan 12, 2018
What is Cystadane?
Cystadane is a byproduct of sugar beet processing.
Cystadane works by preventing the build-up of an amino acid called homocysteine. This amino acid can harm blood vessels and contribute to heart disease, stroke, or circulation problems.
Cystadane is used to reduce homocysteine levels in people with a genetic condition called homocystinuria, in which the amino acid builds up in the body. This medicine is not a cure for homocysteinuria.
Cystadane may also be used for purposes not listed in this medication guide.
Follow all directions on your medicine label and package. Tell each of your healthcare providers about all your medical conditions, allergies, and all medicines you use.
Before taking this medicine
You should not use Cystadane if you are allergic to it.
To make sure you can safely take Cystadane, tell your doctor about all of your medical conditions.
It is not known whether Cystadane will harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant while using Cystadane.
It is not known whether betaine passes into breast milk or if it could harm a nursing baby. Tell your doctor if you are breast-feeding a baby.
How should I take Cystadane?
Cystadane is usually taken 2 times per day. Follow all directions on your prescription label. Your doctor may occasionally change your dose to make sure you get the best results. Do not take this medicine in larger or smaller amounts or for longer than recommended.
Cystadane is a powder medicine that must be mixed with a liquid before using it.
Gently shake the powder medicine bottle before measuring your dose. To get the correct dose, use the measuring scoop provided with this medicine.
Mix Cystadane powder with 4 to 6 ounces of water, juice, milk, infant formula, or soft food. Swallow the mixture right away without chewing. Do not save for later use.
If a child is using this medicine, tell your doctor if the child has any changes in weight. Cystadane doses are based on weight in children, and any changes may affect your child's dose.
While using Cystadane, you may need frequent blood tests.
Cystadane is only part of a complete program of treatment that may also include other vitamin and mineral supplements and a special diet. Follow your diet and medication routines very closely.
Store Cystadane powder at room temperature away from moisture and heat.
What happens if I miss a dose?
Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
What should I avoid while taking Cystadane?
Follow your doctor's instructions about any restrictions on food, beverages, or activity.
Cystadane side effects
Get emergency medical help if you have signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have:
changes in your mental state;
problems with speech, balance, or walking;
decreased consciousness; or
unusual or unpleasant body or breath odor.
Common side effects may include:
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
What other drugs will affect Cystadane?
Other drugs may interact with betaine, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell each of your health care providers about all medicines you use now and any medicine you start or stop using.
Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
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