Drug addiction is a major public health problem that cost the U.S. a staggering $468 billion in 2005.

Benefiber is a widely used fiber supplement. We investigate the pros and cons to help you determine whether it will be beneficial for you.

While many of their peers are singing about getting drunk and blacking out, these eight country stars opt for a sober lifestyle.

After endorsing marijuana for several years, Miley Cyrus is sober and doesn't want to be around potheads because she thinks they are lazy.

Opioids killed more than 33,000 people across the country in 2015, more than any year on record, says the U.S. Centers for Disease Control and Prevention. Read on to find out which cities are struggling the most in the battle with this epidemic.

Opioid withdrawal symptoms are typically managed with medications. Vitamins are sometimes added to ease withdrawal, but their effectiveness remains uncertain.

Heavy marijuana users who give up smoking marijuana often face similar withdrawal effects as those addicted to other drugs. Because they have built up a tolerance to marijuana, their dependence on it may result in some unpleasant symptoms when abstaining from the drug.

Nyquil is a type of over-the-counter medicine that contains a combination of ingredients. It is designated to treat symptoms caused by bronchitis, sinusitis, allergies, flu and the cold virus. Nyquil contains dextromethorphan, acetaminophen, oral antihistamines and decongestants.

Thousands of drug tests are performed every day throughout the United States and the world. In the employment field, drug tests may be given for pre-employment consideration or randomly throughout the time you remain employed with the company.

Marijuana is the most frequently abused illegal drug in America. It's derived from the plant Cannabis sativa and its primary chemical is tetrahydrocannabinol (THC). To receive the desired effect, you either smoke or orally ingest marijuana.

Many organizations require drug screening, whether you're applying for a job, seeking child custody or in other situations. According to Laxmaiah Manchikanti, M.D., and colleagues in their article for "Pain Physician,"

Marijuana is the most common illicit drug that's used in the United States, according to the National Institute on Drug Abuse. Urine tests have been established to detect the use of marijuana.