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Theophylline extended-release tablets in Japan. Theophylline, also known as 1,3-dimethylxanthine, is a drug that inhibits phosphodiesterase and blocks adenosine receptors. [1] It is used to treat chronic obstructive pulmonary disease (COPD) and asthma. [2] Its pharmacology is similar to other methylxanthine drugs (e.g., theobromine and caffeine ...
Since the syndrome is due to the accumulation of chloramphenicol, the signs and symptoms are dose related. [10] According to Kasten's review published in the Mayo Clinic Proceedings, a serum concentration of more than 50 μg/mL is a warning sign, [10] while Hammett-Stabler and John states that the common therapeutics peak level is 10-20 μg/mL and is expected to achieve after 0.5-1.5 hours of ...
Progesterone causes many changes to the genitourinary system. A pregnant woman may experience an increase in the size of the kidneys and ureter due to the increase blood volume and vasculature. Later in pregnancy, the woman might develop physiological hydronephrosis and hydroureter, which are normal. [33]
Theophylline is a non-selective adenosine receptor antagonist. It is also an anti-asthmatic agent and a demethylated metabolite of caffeine. Small open-label trials suggest that theophylline has anti-parkinsonian benefit but a double-blind, placebo-controlled trial did not clearly establish relief from symptoms. [3]
Twin-to-twin transfusion syndrome (TTTS), also known as feto-fetal transfusion syndrome (FFTS), twin oligohydramnios-polyhydramnios sequence (TOPS) and stuck twin syndrome, is a complication of monochorionic multiple pregnancies (the most common form of identical twin pregnancy) in which there is disproportionate blood supply between the fetuses.
The agency has previously set levels of 100 parts per billion for arsenic in baby rice cereal, a level critics call too high. However, the FDA hasn’t taken action on other heavy metals.
If one twin dies in utero, blood accumulates in that twin's body, causing exsanguination of the remaining twin. [2] In the case of monoamniotic twins the risk of complications is substantially higher because of additional potential umbilical cord entanglement and compression. [3] However, the perinatal mortality of monochorionic twins is fairly ...
Consuming large quantities of cinnamon may also cause your dog to have low blood sugar or liver disease, and could lead to vomiting, diarrhea and changes in heart rate, the Pet Poison Helpline warns.