Take this medication by mouth with a full glass of water (8 ounces or 240 milliliters) as directed by your doctor or public health and safety officials. To avoid stomach upset, take after meals or with food. Drink plenty of liquids with this medication unless otherwise directed. If you are taking the tablets, do not lie down for 10 minutes after taking this medication. If you are using the drops or liquid medication, use the dropper that comes with the bottle or a medication spoon/device to measure the correct dose. Liquid forms of this product may be mixed in water, milk, formula, or juice before taking. Do not use this medication if the solution turns brownish-yellow.
Dosage is based on your medical condition and response to therapy. In children, dosage is also based on age. Do not increase your dose, take it more often, or take it for longer than prescribed or recommended because of the increased risk of side effects.
In a radiation emergency, take this drug only when public health and safety officials tell you to do so. Read the Patient Information Leaflet that comes with the medication. Start treatment as soon as possible for the best protection. Take this medication usually once every 24 hours. The length of treatment will be determined by public health and safety officials and depends on several factors (e.g., whether you continue to be exposed to the radiation, and whether you are pregnant, breast-feeding, or have a newborn baby). See also Precautions.
If so directed, use this medication regularly to get the most benefit from it. To help you remember, take it at the same time(s) each day.
Inform your doctor if your condition persists or worsens.