The many surprising uses of Pfizer's newest acquisition: Botox
Reuters/ Jim Young
Allergan, the pharmaceutical company that makes Botox, just agreed
to be sold to pharma giant Pfizer.
The $160 billion deal is the year's largest takeover.
One of the reasons Allergan is worth so much is Botox, which had more than $2 billion in annual sales in 2013.
One of the most common pharmaceutical products, Botox is currently known as an anti-wrinkle treatment. However, the drug has many other approved medical uses...
Meet the bacterial neurotoxin that went on to be a medicine.
Botox's most famous use — treating wrinkles — started as an "off-label" use in the 1990s, but was officially approved by the FDA in 2002.
But Botox was actually first used to treat crossed eyes.
Next, eye doctors tried it to treat a condition that causes abnormal blinking.
Next up: A condition that causes people to turn their heads to the side involuntarily.
It also treats extreme underarm sweating.
And some people use it to stop sweating in other areas, like the scalp.
More recently, it's been used to treat muscle spasms in the upper arm.
It works on chronic migraines.
It can be injected into the bladder muscle to stop incontinence.
And it's the only approved treatment for crows' feet.
There could be more on the way, including cerebral palsy and heart conditions.