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Doxycycline, doxycycline monohydrate and doxycycline hyclate are yellow, crystalline powders with a bitter taste. The latter smells faintly of ethanol , a 1% aqueous solution has a pH of 2–3, and the specific rotation is [ α ] D 25 {\displaystyle [\alpha ]_{D}^{25}} −110° cm 3 /dm·g in 0.01 N methanolic hydrochloric acid .
It is used as a precursor in the industrial synthesis of doxycycline hyclate. [citation needed] It has been found to act as an agonist of the human pregnane X receptor ligand-binding domain and to induce CYP3A4 expression in vitro. [1]
Here are links to possibly useful sources of information about Doxycycline. PubMed provides review articles from the past five years (limit to free review articles) The TRIP database provides clinical publications about evidence-based medicine. Other potential sources include: Centre for Reviews and Dissemination and CDC
Tetracyclines are generally used in the treatment of infections of the urinary tract, respiratory tract, and the intestines and are also used in the treatment of chlamydia, especially in patients allergic to β-lactams and macrolides; however, their use for these indications is less popular than it once was due to widespread development of resistance in the causative organisms.
A hyclate (Latin: hyclas) is a pharmaceutical term for hydrochloride hemiethanolate hemihydrate [1] [2] (·HCl· 1 / 2 EtOH· 1 / 2 H 2 O), e.g. doxycycline hyclate. [ 3 ] [ 4 ] References
A Tet-On system works similarly, but in the opposite fashion. While in a Tet-Off system, tTA is capable of binding the operator only if not bound to tetracycline or one of its derivatives, such as doxycycline, in a Tet-On system, the rtTA protein is capable of binding the operator only if bound by a tetracycline. Thus the introduction of ...
It is alleged that the price of 500 doxycycline tablets rose in the US from $20 to $1,849 in just seven months. [ 3 ] On October 31, 2024, Heritage Pharmaceuticals and Apotex agreed to pay $49.1 million to resolve allegations of price-fixing in collusion to artificially raise drug prices as charged by a coalition of 50 state attorneys general .
Supine: lying on the back on the ground with the face up. Prone: lying on the chest with the face down ("lying down" or "going prone"). See also "Prostration". Lying on either side, with the body straight or bent/curled forward or backward. The fetal position is lying or sitting curled, with limbs close to the torso and the head close to the knees.