DENVER — Colorado wants to set up a first-in-the-nation tracking system of medical marijuana purchases to deter people from buying vast amounts of pot and selling it on the black market.

Forest Pharmaceuticals agrees to pay more than $313M, enter guilty plea regarding Celexa

Drug company to pay more than $313M over Celexa

FDA panel recommends against making Robitussin, others prescription drugs, despite abuse

Japan confirms its first case of new superbug gene in man returning from India

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UK drug regulators want GSK’s controversial diabetes pill Avandia pulled from market

UK regulators want Avandia diabetes pill pulled

Study: Drugs to strengthen bones may slightly raise the chances of throat cancer

Mexico’s crackdown on pharmacies selling antibiotics without prescriptions begins Wednesday

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3 biggest US drug chains sell flu shots months earlier; feds have advised for all but newborns

FDA panel says antidepressant looks effective for back pain, but not osteoarthritis

Summary Box: FDA concerned about expanding use of antidepressant Cymbalta to treat pain

Summary Box: FDA reviews Cymbalta for chronic pain

FDA questions whether Lilly’s antidepressant Cymbalta is safe and effective for chronic pain

FDA panel of advisers backs GlaxoSmithKline seizure drug, despite side effects

British doctors warn new superbug found in patients from India, Pakistan could spread widely

Montana health officials say loophole allows out-of-state residents to get medical marijuana

Out-of-state residents can get medical pot cards

Bodyguard testifies that Anna Nicole Smith’s boyfriend, doctor supplied her with drugs

Bodyguard: Anna Nicole’s boyfriend supplied drugs

In DC, no such thing as too poor for medical pot; City is first to give discounts to the needy

In DC, no such thing as too poor for medical pot

Rutgers University just says no to growing pot for NJ’s new medical marijuana initiative

Rutgers just says no to pot growing for NJ

AIDS breakthrough: Vaginal gel helps prevent HIV, herpes infections, African study finds

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Columbia University halts some research at brain-imaging center after FDA complaints

FDA cites quality problems at NY brain-imaging lab

New Mexico experiences pot shortage under tight medical marijuana rules

Looking for medical marijuana in NM? Get in line

FDA panel raises concerns over memory lapses seen with experimental weight loss drug

FDA panel worries about psych effects of diet pill

Experimental diet pill promising, with fewer health risks; one of 3 awaiting FDA approval

Experimental diet pill shows promise, little risk

FDA panel says heart risks with diabetes drug Avandia significantly higher than other meds

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FDA staffers disagree on safety of one-time blockbuster diabetes drug Avandia

Summary Box: Drug safety debate exposes FDA rift

Summary Box: FDA meets to review first in trio of obesity drugs seeking approval

Mich. man using medical marijuana to treat brain tumor symptoms sues after firing from Walmart

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Using statins in people with normal cholesterol divides heart doctors, confuses patients

Cholesterol drugs for the healthy still debatable

Experts: Misguided policies that criminalize drug users fuel AIDS epidemic

Experts urge reform of global drug policy

VIENNA — Experts preparing for an international conference are saying policies that criminalize drug users fuel the spread of AIDS and should be reformed.