Amphetamine
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  Amphetamine



Amphetamine

   "A drug with a stimulant effect on the central nervous system that can be both physically and psychologically addictive when overused. This drug has been much abused recreationally. The street term ""speed"" refers to stimulant drugs such as amphetamine."

RELATED TERMS
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Central
In anatomy and medicine (as elsewhere), central is the opposite of "peripheral" which means away from the center.

Drugs
Drugs intended for human or veterinary use, presented in their finished dosage form. Included here are materials used in the preparation and/or formulation of the finished dosage form.



SIMILAR TERMS
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Amphadase
Amphadase is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): hyaluronidase.

Amphetamine sulfate
Amphetamine sulfate is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): amphetamine sulfate.

Amphibole
One of the two subgroups of minerals forming the asbestos group, distinguished by their chain-like crystal structure and chemical composition. Asbestos amphiboles include actinolite, amosite, anthophyllite, crocidolite, and tremolite.

Amphicol
Amphicol is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): chloramphenicol.

Amphotec
Amphotec is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): amphotericin b.

Amphotericin b
Amphotericin b is a prescription or over-the-counter drug which is (or once was) legal in the United States and possibly in other countries. Active ingredient(s): amphotericin b.



PREVIOUS AND NEXT TERMS
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Amnioreduction
The removal of large volumes of amniotic fluid by amniocentesis.

Amniotic sac
Popularly and more commonly known as the bag of waters. See: Bag of waters.

Amoeba
"Also ameba. A single-celled (protozoan) organism that constantly changes shape. The word ""ameba"" is from the Greek ""amoibe"" meaning ""change."" Ameba can infect the bowels to cause diarrhea and the liver to cause abscess formation. "

Amoxicillin
An antibiotic of the penicillin type that is effective against different bacteria such as Haemophilus influenzae, Neisseria gonorrhoea, Escherichia coli, Pneumococci, Streptococci, and certain strains of Staphylococci, particularly infections of the middle ear, tonsillitis, throat infections, laryngitis, bronchitis, and pneumonia. Amoxicillin is also used in treating urinary tract infections, skin infections, and gonorrhea. The brand names are Amoxil, Polymox, and Trimox. A generic version is available.

Amoxil
See: Amoxicillin.

Amphetamine

Amplification
"Making multiple copies of a gene or of any sequence of DNA. Repeated copying of a piece of DNA. In amplification there is an increase in the number of copies of any particular piece of DNA. Gene amplification plays a role in cancer cells. A tumor cell amplifies, or copies, DNA segments as a result of cell signals and sometimes environmental events. Amplification can occur in vivo (in the living individual) or in vitro (literally ""in glass"", or in a plastic vessel in the laboratory). "

Amplification, DNA
"The production of multiple copies of a sequence of DNA. Repeated copying of a piece of DNA. DNA amplification plays a role in cancer cells. A tumor cell amplifies, or copies, DNA segments as a result of cell signals and sometimes environmental events. Amplification can occur in vivo (in the living individual) or in vitro (literally ""in glass"", or in a plastic vessel in the laboratory)."

Ampulla
In anatomy, a sac-like enlargement of a canal or duct. The ampulla of Vater is the enlargement of the ducts from the liver and pancreas at the point where they enter the small intestine. Ampulla in Latin means flask. An ampulla was a flask used in ancient Rome to hold ointment, perfume, and wine.

Ampulla of Vater
An enlargement of the ducts from the liver and pancreas at the point where they enter the small intestine. Bile from the liver and secretions from the pancreas come through the ampulla of Vater to mix with food in the duodenum and aid digestion.

Ampullary carcinoma
"Cancer of a structure called the ampulla of Vater, a small muscle located at the junction where the common bile duct (carrying bile from the liver and secretions from the pancreas) empties into the duodenum (upper small intestine). Because of its location, this cancer can cause obstruction of the common bile duct and prevent bile from flowing into the intestine and out of the body. The chemicals usually eliminated from the body in bile - in particular, bilirubin -- accumulate in the blood and cause jaundice (yellow skin and eyes) and itching. The stool becomes light-colored and the urine dark-colored since the accumulating bilirubin (which is yellow to dark brown) is eliminated in the urine instead of the stool. The treatment is surgical removal of the cancer. There is no effective chemotherapy for ampullary cancer. The cause of ampullary carcinoma is unknown. Fortunately, it is rather rare.

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