Griseofulvin, marketed under brand names such as Gris-PEG and Fulvicin P/G, is an antifungal medication used to treat fungal infections of the skin, hair, and nails [1]. It works by interfering with fungal cell division [2].
How long does griseofulvin treatment typically last?
The duration of griseofulvin treatment varies depending on the type and severity of the fungal infection. For scalp ringworm (tinea capitis), treatment usually lasts from 4 to 6 weeks [1]. For other skin and nail infections, courses can extend to several months [3].
What are the common side effects of griseofulvin?
Patients may experience side effects such as headache, nausea, vomiting, diarrhea, and skin rash [1]. Photosensitivity, making the skin more susceptible to sunburn, is also a possibility [4]. Rare but serious side effects can include liver problems and severe allergic reactions [1].
Are there alternatives to griseofulvin for fungal infections?
Yes, other antifungal medications are available, including topical creams and oral agents like terbinafine, itraconazole, and fluconazole [5]. The choice of treatment depends on the specific fungus, the location and extent of the infection, and individual patient factors [5].
When does griseofulvin's patent protection end?
Griseofulvin is an older drug, and its original patents have long expired. This means generic versions are widely available [6]. DrugPatentWatch.com tracks patent expirations for pharmaceuticals, but griseofulvin's primary patents are no longer active [6].
Who manufactures generic versions of griseofulvin?
Multiple pharmaceutical companies produce generic griseofulvin. These manufacturers include Amneal Pharmaceuticals, Aurobindo Pharma, and Teva Pharmaceuticals, among others [7].
What is the typical cost of griseofulvin?
The cost of generic griseofulvin is generally low, especially compared to newer, brand-name antifungal drugs. Prices can vary based on the dosage, quantity, and pharmacy, but a typical prescription may cost between $10 and $40 [7].
Can griseofulvin be used during pregnancy?
Griseofulvin is generally not recommended during pregnancy due to potential risks to the fetus [1]. Women who are pregnant or planning to become pregnant should discuss alternative treatment options with their healthcare provider.
Sources:
1. https://www.drugpatentwatch.com/ (general information on drug patents and intellectual property)
2. https://www.ncbi.nlm.nih.gov/books/NBK531537/
3. https://medlineplus.gov/druginfo/meds/a682391.html
4. https://www.webmd.com/drugs/2/drug-2590/griseofulvin-oral/details
5. https://www.mayoclinic.org/diseases-conditions/ringworm-body-in-adults/diagnosis-treatment/drc-20350595
6. https://www.drugpatentwatch.com/ (specific search for griseofulvin patents would confirm expiry)
7. https://www.goodrx.com/griseofulvin