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Doxycycline has a high oral bioavailability, as it is almost completely absorbed in the stomach and proximal small intestine. [15] Unlike other tetracyclines, its absorption is not significantly affected by food or dairy intake. [15] However, co-administration of dairy products reduces the serum concentration of doxycycline by 20%. [15]
Partial exceptions to these rules occur for doxycycline and minocycline, which may be taken with food (though not iron, antacids, or calcium supplements). Minocycline can be taken with dairy products because it does not chelate calcium as readily, although dairy products do decrease absorption of minocycline slightly. [39]
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 ...
On average, whole milk contains 3.25% fat—only a few percentage points higher than low-fat milk. To broaden your perspective, half-and-half can contain up to 18% fat, while heavy cream must be ...
Michelle Obama was not in attendance at President Jimmy Carter’s funeral on Thursday, Jan. 9, as the former first lady usually has for past presidents. "Former First Lady Michelle Obama is not ...
Doxycycline plus streptomycin regimen (for 2 to 3 weeks) is more effective than doxycycline plus rifampicin regimen (for 6 weeks). [22] Doxycycline is able to cross the blood–brain barrier, but requires the addition of two other drugs to prevent relapse. Ciprofloxacin and co-trimoxazole therapy is associated with an unacceptably high rate of ...
Not all questions have simple, yes or no answers—including this one. While many dogs are lactose intolerant, many are not! Lactose intolerance develops as a dog grows up, so it can be impossible ...
The use of a drug of last resort may be based on agreement among members of a patient's care network, including physicians and healthcare professionals across multiple specialties, or on a patient's desire to pursue a particular course of treatment and a practitioner's willingness to administer that course.