Lac Hydrin (Ammonium Lactate 12%) is a prescription medication used to treat dry or scaly skin (xerosis). Xerosis is often caused by cold or dry weather, sun damage, overbathing, or harsh soaps. Lac Hydrin also treats ichthyosis vulgaris (an inherited dry skin condition) in adults and children. This condition is characterized by onset in early childhood, usually between the ages of 3 and 12 months. It is present with fine scales and varying degrees of skin dryness. The active ingredient in Lac Hydrin is Ammonium Lactate. Ammonium lactate belongs to a class of drugs called alpha-hydroxy acids. It works by increasing hydration to reduce skin dryness and relieve itching.

Manufacturer Information

Get medical help immediately if you have any of these signs or an allergic reaction while using Lac Hydrin. The most common side effects of Lac Hydrin may include the following:
• Bruising of treated skin;
• Increased sensitivity to sunlight;
• Mild dryness;
• Mild skin irritation

Contact your doctor right away if you have any of the severe side effects, including:
• Severe redness or stinging at the application site;
• Skin peeling

These are not all of the side effects of Lac Hydrin. Always contact your doctor if you notice any unusual symptoms.

You should not use Lac Hydrin if you are allergic to Ammonium lactate or any ingredient in Lac Hydrin. Before you start using this medication, tell your doctor about your medical history, especially if you:
• Are breastfeeding or planning to breastfeed;
• Are pregnant or planning to be pregnant;
• Have sensitive skin;
• Have wounds or skin sores

Tell your doctor about all your medications, including prescription, OTC, herbal supplements, and vitamins. There may be drug interactions between Lac Hydrin and other medicines, especially other topical medications. Tell your doctor if you are pregnant or planning to become pregnant. It is unknown if Lac Hydrin will harm an unborn baby. Inform your doctor if you are breastfeeding or planning to breastfeed. It is not known if Ammonium lactate passes into breast milk or if it may affect a nursing infant. Discuss the benefits and risks of using this medication when breastfeeding, especially if you are applying it to the breast area. Use Lac Hydrin precisely as prescribed by your doctor. Ammonium lactate is a lotion and should be used only on the skin. Do not take it by mouth. Shake the lotion before using it. Wash your hands before and after applying Lac Hydrin, except if you use it to treat a hand condition. Apply the lotion to the affected skin area twice daily. Avoid unnecessary or prolonged exposure to the sun. Lac Hydrin may increase your sensitivity to sunlight. Wear protective clothing, sunglasses, and sunscreen to limit exposure to sunlight. Do not use Lac Hydrin on open wounds or irritated, chapped, or sunburned skin. If this medication gets into your eyes, nose, or mouth, rinse with water immediately. Keep this medication in the container it came in. Store at room temperature, away from excess heat and moisture. Keep out of the sight and reach of children.

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