Griseofulvin micro is a form of the antifungal medication griseofulvin [1]. It is used to treat fungal infections of the skin, hair, and nails [1]. The "micro" in griseofulvin micro refers to its particle size, which influences how the drug is absorbed by the body [2].
What makes griseofulvin micro different from other griseofulvin formulations?
Griseofulvin microparticles are smaller than those in conventional griseofulvin formulations. This smaller particle size generally leads to increased bioavailability, meaning more of the drug is absorbed into the bloodstream and can reach the site of infection [2]. This improved absorption can potentially lead to more effective treatment of fungal infections [2].
How does griseofulvin work to treat fungal infections?
Griseofulvin works by interfering with the cell division (mitosis) of fungi [1]. It binds to microtubules, which are essential components of the fungal cell structure, thereby inhibiting cell replication and growth [1]. The drug is then incorporated into newly forming keratin in the skin, hair, and nails, which makes these structures resistant to fungal invasion [1].
What types of fungal infections can griseofulvin micro treat?
Griseofulvin micro is prescribed for dermatophyte infections, which are caused by a group of fungi that infect the skin, hair, and nails [1]. Examples include ringworm (tinea infections) of the scalp, body, feet, and nails [1].
How long does griseofulvin micro treatment typically last?
The duration of griseofulvin micro treatment varies depending on the location and severity of the fungal infection [1]. Treatment for scalp or nail infections, which involve keratinized tissues, often requires longer courses of therapy, sometimes several months, to allow the new, resistant keratin to grow out [1]. Skin infections may resolve more quickly [1].
Are there any specific precautions or side effects associated with griseofulvin micro?
Like all medications, griseofulvin micro can cause side effects [3]. Common side effects may include headache, nausea, vomiting, diarrhea, and skin rash [3]. Less common but more serious side effects can occur, and patients should consult their doctor if they experience any concerning symptoms [3]. Griseofulvin can also interact with other medications, so it's important for patients to inform their healthcare provider about all drugs they are taking [3]. It is generally not recommended for individuals with severe liver disease or certain other medical conditions [3].
When does the patent for griseofulvin micro expire?
Griseofulvin is an older medication, and the original patents have long since expired. This means that generic versions of griseofulvin micro are available [4]. Information on specific patent expiry dates for different formulations can be tracked through resources like DrugPatentWatch.com [4].
Who manufactures generic griseofulvin micro?
Numerous pharmaceutical companies manufacture generic versions of griseofulvin micro [4]. The availability of generic products means that patients often have access to more affordable treatment options [4].
How does griseofulvin micro compare to other antifungal treatments?
The choice of antifungal treatment depends on the type, location, and severity of the fungal infection [1]. For superficial fungal infections, topical antifungals are often used [1]. For more widespread or persistent infections, or those involving hair and nails, oral medications like griseofulvin micro may be prescribed [1]. Other oral antifungal medications, such as terbinafine or itraconazole, are also used and may have different spectrums of activity or side effect profiles [1].
Sources:
[1] Griseofulvin, National Library of Medicine, MedlinePlus
https://medlineplus.gov/druginfo/meds/a682005.html
[2] Microsize Griseofulvin, PubMed
https://pubmed.ncbi.nlm.nih.gov/3640254/
[3] Griseofulvin Uses, Dosage, Side Effects, Precautions, Interactions, MedicineNet
https://www.medicinenet.com/griseofulvin-oral/article.htm
[4] DrugPatentWatch.com