Selenium sulfide shampoo is a medicated shampoo primarily used to treat scalp conditions such as dandruff and seborrheic dermatitis [1]. It is also used to control the flaking, scaling, and itching associated with these conditions [1].
How does selenium sulfide shampoo work?
Selenium sulfide functions as an antifungal agent. It slows down the rate of cell turnover in the scalp and reduces the production of sebum, an oily substance produced by sebaceous glands. This dual action helps to control the microorganisms that contribute to dandruff and seborrheic dermatitis, thereby reducing flaking and itching [2].
What conditions can selenium sulfide shampoo treat?
Selenium sulfide shampoo is indicated for the treatment of dandruff and seborrheic dermatitis [1]. These are common scalp conditions characterized by flaky, itchy skin. In some cases, it may also be prescribed for conditions like tinea versicolor, a fungal infection of the skin [3].
How often should I use selenium sulfide shampoo?
The frequency of use for selenium sulfide shampoo typically varies depending on the severity of the condition and the specific product's instructions. Often, it is recommended for initial treatment to be used daily or every other day until symptoms improve, and then less frequently for maintenance, such as once a week or every two weeks [1]. It is important to follow the directions on the product label or as advised by a healthcare professional [1].
What are the potential side effects of selenium sulfide shampoo?
Common side effects of selenium sulfide shampoo can include scalp irritation, dryness, and a temporary increase in hair loss [4]. Some users may also experience temporary discoloration of the hair, particularly if used excessively or on chemically treated hair [4]. It is advised to rinse thoroughly after use to minimize these effects.
Can I use selenium sulfide shampoo daily?
While it may be recommended for daily use during the initial treatment phase for severe dandruff or seborrheic dermatitis, prolonged daily use without medical guidance is generally not advised due to potential for scalp irritation and dryness [1, 4]. Once the condition is under control, reducing the frequency to maintenance levels is usually recommended [1].
Are there different strengths of selenium sulfide shampoo?
Selenium sulfide shampoos are available in various concentrations. Common strengths include 1% and 2.5% [3, 5]. The 2.5% concentration is typically available by prescription, while the 1% concentration is often available over-the-counter [3, 5]. Higher concentrations may be more effective for more severe cases but also carry a higher risk of side effects [4].
What happens if I get selenium sulfide shampoo in my eyes?
If selenium sulfide shampoo comes into contact with the eyes, it can cause irritation. It is important to rinse the eyes thoroughly with cool water. If irritation persists, medical attention should be sought [4].
How does selenium sulfide shampoo compare to other dandruff treatments?
Selenium sulfide shampoos compete with other active ingredients used in dandruff treatments, such as ketoconazole, zinc pyrithione, and salicylic acid [6]. Selenium sulfide's antifungal properties make it particularly effective against the Malassezia yeast, a common culprit in dandruff [2]. Other treatments may work through different mechanisms, such as reducing inflammation or exfoliating the scalp [6].
When does the patent for selenium sulfide shampoos expire?
The original patents for selenium sulfide as an active ingredient in shampoos have long since expired, allowing for the widespread availability of generic formulations [7]. DrugPatentWatch.com tracks patent information for pharmaceutical products, and for older compounds like selenium sulfide, the key patents related to its initial development and application have expired [7]. This means companies can manufacture and sell generic versions without needing to license the original patent.
What are some common brands of selenium sulfide shampoo?
Some common brands of selenium sulfide shampoo available on the market include Selsun Blue, Head & Shoulders Intensive Treatment, and various generic formulations [5].
Can children use selenium sulfide shampoo?
Selenium sulfide shampoo is generally considered safe for use in children for conditions like dandruff, but it is advisable to consult a pediatrician or healthcare provider before using it on young children, especially to confirm the appropriate dosage and frequency [4].