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Atevirdine

Ateviridine is non-nucleoside reverse transcriptase inhibitor that has been studied for the treatment of HIV.

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Atipamezole

Atipamezole is a synthetic alpha2-adrenergic antagonist, indicated for the reversal of the sedative and analgesic effects of dexmedetomidine and medetomidine in dogs. It has also been researched in humans as a potential anti-Parkinsonian drug.

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Atomoxetine

Atomoxetine is a drug approved for the treatment of attention-deficit hyperactivity disorder. It is sold in the form of the hydrochloride salt of atomoxetine, a norepinephrine reuptake inhibitor.

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Atorvastatin Calcium

Atorvastatin Calcium is a selective, competitive HMG-CoA reductase inhibitor. It is primarily used to lower cholesterol and triglycerides in patients with hypercholesterolemia and mixed dyslipidemia, and may also be used for homozygous familial hypercholesterolemia. It is a selective, competitive inhibitor of hydroxymethylglutaryl-coenzyme A (HMG-CoA) reductase.

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Atorvastatin Calcium Trihydrate

Atorvastatin Calcium Trihydrate is used for lowering both elevated LDL-Cholesterol and triglycerides in patients with hypercholesterolemia.

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Atovaquone

Atovaquone is a chemical compound that belongs to the class of naphthalenes. It is a hydroxy-1,4-naphthoquinone, an analog of ubiquinone, with antipneumocystic activity. It is a medication used to treat or prevent pneumocystis pneumonia, toxoplasmosis, malaria and babesia.

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Atracurium

Atracurium is a nondepolarizing skeletal muscle relaxant. Atracurium can be used most advantageously if muscle twitch response to peripheral nerve stimulation is monitored to assess degree of muscle relaxation.

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Atracurium Besylate

Atracurium besylate is a neuromuscular-blocking drug or skeletal muscle relaxant in the category of non-depolarizing neuromuscular-blocking drugs, used adjunctively in anesthesia to facilitate endotracheal intubation and to provide skeletal muscle relaxation during surgery or mechanical ventilation. Atracurium besylate was first synthesized in 1974 by George H. Dewar. Atracurium Besylate can be used most advantageously if muscle twitch response to peripheral nerve stimulation is monitored to assess degree of muscle relaxation.

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Atropine

Atropine is a naturally occurring tropane alkaloid extracted from deadly nightshade Jimson weed, mandrake and other plants of the family Solanaceae. Atropine is a racemic mixture of d-hyoscyamine and l-hyoscyamine. It is a secondary metabolite of these plants and serves as a drug with a wide variety of effects. It is a competitive antagonist for the muscarinic acetylcholine receptor types M1, M2, M3, M4 and M5. It is classified as an anticholinergic drug. Atropine increases firing of the sinoatrial node (SA) and conduction through the atrioventricular node (AV) of the heart, opposes the actions of the vagus nerve, blocks acetylcholine receptor sites, and decreases bronchial secretions. Atropine is also useful in treating second-degree heart block Mobitz Type 1, and also third-degree heart block with a high Purkinje or AV-nodal escape rhythm. It is usually not effective in second-degree heart block Mobitz type 2. Atropine is rapidly and well absorbed after intramuscular administration. Atropine disappears rapidly from the blood and is distributed throughout the various body tissues and fluids.

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Avanafil

Avanafil is a PDE5 inhibitor being developed for erectile dysfunction. It acts by inhibiting a specific phosphodiesterase type 5 enzyme which is found in various body tissues, but primarily in the corpus cavernosum penis, as well as the retina.

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