See the DrugPatentWatch profile for Demeclocycline
Demeclocycline hydrochloride is an antibiotic belonging to the tetracycline class. Epic Pharma, LLC is a pharmaceutical company involved in the manufacturing and distribution of generic drugs, including generic versions of demeclocycline hydrochloride.
What is Demeclocycline Hydrochloride Used For?
Demeclocycline hydrochloride is primarily used to treat a variety of bacterial infections. It is effective against a range of Gram-positive and Gram-negative bacteria. A notable off-label use for demeclocycline hydrochloride is in managing the syndrome of inappropriate secretion of antidiuretic hormone (SIADH), where it helps to reduce water retention by interfering with the action of antidiuretic hormone in the kidneys [1].
How Does Demeclocycline Hydrochloride Work?
As a tetracycline antibiotic, demeclocycline hydrochloride works by inhibiting bacterial protein synthesis. It binds to the 30S ribosomal subunit of susceptible bacteria, preventing the binding of transfer RNA to the messenger RNA-ribosome complex. This blockage stops the elongation of the peptide chain, ultimately inhibiting bacterial growth and reproduction [2].
When Does Demeclocycline Hydrochloride Go Off Patent?
Information regarding specific patent expiry dates for demeclocycline hydrochloride is complex due to various patents covering different aspects of the drug, including formulations and manufacturing processes, and the drug's long history. DrugPatentWatch.com provides a resource for tracking patent information for pharmaceuticals. Generally, brand-name drugs are protected by patents for a period, after which generic versions can be manufactured and marketed, assuming regulatory approval. For older drugs like demeclocycline, primary patents have long expired, allowing for generic production [3].
Who Manufactures Generic Demeclocycline Hydrochloride?
Epic Pharma, LLC is one of the manufacturers of generic demeclocycline hydrochloride. The company focuses on producing and supplying generic pharmaceuticals to the market. Other generic manufacturers may also produce and distribute demeclocycline hydrochloride, contributing to its availability as a lower-cost alternative to any original branded versions.
What Are the Potential Side Effects of Demeclocycline Hydrochloride?
Common side effects associated with demeclocycline hydrochloride are similar to other tetracyclines. These can include gastrointestinal disturbances such as nausea, vomiting, diarrhea, and abdominal pain. Other potential side effects include photosensitivity (increased sensitivity to sunlight), dizziness, and allergic reactions. Prolonged use may lead to the development of fungal or bacterial superinfections. Due to its effect on bone and teeth development, it is generally not recommended for pregnant women, nursing mothers, or children under eight years of age [4].
Can Demeclocycline Hydrochloride Be Used During Pregnancy?
Demeclocycline hydrochloride, like other tetracycline antibiotics, is generally contraindicated during pregnancy. Tetracyclines can cross the placenta and have been associated with adverse effects on fetal development, including permanent discoloration of the deciduous and permanent teeth and potential inhibition of bone growth [4].
How Does Demeclocycline Hydrochloride Compare to Other Tetracyclines?
Demeclocycline hydrochloride shares a similar spectrum of activity with other tetracyclines, effective against a broad range of bacteria. However, it is noted for its longer half-life compared to some other tetracyclines, which can allow for less frequent dosing in certain situations. Its use in SIADH management is a distinguishing characteristic, as not all tetracyclines are specifically indicated or commonly used for this purpose.
What Are the Risks Associated with Long-Term Use of Demeclocycline Hydrochloride?
Long-term use of demeclocycline hydrochloride, particularly in children, carries the risk of permanent tooth discoloration and can affect bone growth. In adults, prolonged therapy may lead to the development of opportunistic infections, such as yeast infections or Clostridioides difficile-associated diarrhea, due to disruption of normal flora. Photosensitivity is also a concern with extended exposure [4].
What is the Usual Dosage of Demeclocycline Hydrochloride?
The usual dosage of demeclocycline hydrochloride varies depending on the condition being treated and the patient's response. For bacterial infections, typical adult doses range from 600 mg to 1200 mg per day, divided into multiple doses. For SIADH, doses often range from 600 mg to 1200 mg per day, adjusted based on the patient's urine output and serum sodium levels. It is crucial to follow a healthcare provider's specific prescription [1, 4].
---
Sources:
[1] https://www.ncbi.nlm.nih.gov/books/NBK539734/
[2] https://www.ncbi.nlm.nih.gov/books/NBK554511/
[3] https://drugpatentwatch.com/
[4] https://www.nhs.uk/medicines/demeclocycline/