Cystadane, with its active ingredient betaine anhydrous, is a medication primarily used in the treatment of homocystinuria, a rare genetic disorder that affects the metabolism of the amino acid methionine, leading to a buildup of homocysteine in the body. Homocystinuria can result in various health issues, including vision problems, skeletal abnormalities, blood clots, and developmental delays. Cystadane works by decreasing elevated homocysteine levels in the blood. It is administered orally and is available in powder form, which must be dissolved in water, juice, milk, or food before consumption. As with any medication, it is essential to use Cystadane under the guidance of a healthcare professional to ensure its safe and effective use.