Isotretinoin is an oral medication used to treat severe recalcitrant nodular acne that has not responded to other treatments [1]. It is a prescription drug [2].
What are the main uses of isotretinoin?
Isotretinoin is prescribed for severe acne, particularly nodular acne, which can lead to permanent scarring [3]. It is effective in reducing sebum production, inflammation, and the growth of Cutibacterium acnes bacteria [4].
How does isotretinoin work?
Isotretinoin belongs to a class of drugs called retinoids, which are vitamin A derivatives [1]. It works by shrinking the oil glands in the skin, thereby reducing the amount of oil produced [4]. This also decreases the bacteria that can clog pores and cause acne [4].
What are the potential side effects of isotretinoin?
Common side effects include dryness of the lips, skin, and eyes, as well as increased sensitivity to sunlight [2][4]. More serious side effects can include changes in mood, depression, and in rare cases, suicidal thoughts [2]. Isotretinoin can also cause birth defects if taken during pregnancy [5]. Other potential side effects involve changes in vision, hearing, and liver function [2].
What are the risks of isotretinoin during pregnancy?
Isotretinoin is a known teratogen, meaning it can cause severe birth defects [5]. Because of this risk, strict pregnancy prevention programs are in place for individuals who can become pregnant before, during, and after treatment [5].
What is the typical duration of isotretinoin treatment?
Treatment with isotretinoin typically lasts for 15 to 20 weeks, or about 4 to 5 months [4]. Some individuals may require a second course of treatment if their acne does not fully clear after the initial course [4].
When does isotretinoin patent protection expire?
Information regarding specific patent expiry dates for isotretinoin products can be found on resources like DrugPatentWatch.com [6]. Patents for branded medications can be complex, involving multiple patents covering the drug substance, formulations, and methods of use [6].
Can generic versions of isotretinoin be made available?
Once patents and other forms of market exclusivity expire, generic versions of isotretinoin can be developed and approved [6]. The availability of generics can lead to lower drug prices [6].