Yes
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OTC means "Over the Counter", which is a test that you can buy at the store and do not need a prescription for. Many medication are called OTC which means you can just go by them without a doctor's prescription. Or it could also be an OTC stock trade.
Yes, you can't buy them otc.
No. It is a decongestant.
There are lots of websites detailing information on how to buy and sell OTC online. To get some more info on OTC check out http://www.investopedia.com/ask/answers/06/buyOTC.asp
most of consumer laxatives are OTC meds.
Are snacks medicine? Of course not.
It will be cheaper to buy OTC teeth whitening, but you may want to focus on quality. A professional can ensure an even treatment and quality ingredients.
You can not to my knowledge buy neocate or neocate jr OTC,you have to get it at a pharmacy or from the web site.
No. Tylenol is an OTC (over-the-counter) medication.
permethrin 5% is not available OTC, it is a prescription-only cream. However, it may be available at a garden store for non-human use.