NOT TRUE.
Pulmicort has been around for 30 years and is only manufactured by AstraZeneca. It is also the only inhaled corticosteroid approved for children under 12 years, which puts it into a very narrow range of drugs. Hardly any drugs are approved for children under 12 -- Even OTC drugs like ASA.
Many other drugs are like this. Drugs can have been around for only 1-2 years and have generic markets. Your rule of thumb isn't a rule of thumb... it's a rule of thumb and broomstick and hockey stick and twig and .5 dowel. All generic means is that the patent ran out and the company chose to sell the patent to other companies. The approval process is 95% over once the drug is approved for human consumption -- it can be pulled from shelves after that, but I'm really sorry, I'm afraid you're misinformed.
RESEARCH the drugs you're going to be on. Research them more once you're on them. Information is really the only way you can be sure of what's going on. Rules of thumb like that are like comparing apples to oranges.
Remember too that sometimes asthma drugs like Beclovent and Becloforte are phased out by a company in favor of drugs like Flovent because Flovent was proven to have fewer side-effects. Just because they're mostly tried-and-true doesn't necessarily mean they're any safer than a newer drug that's been released. It doesn't even mean it's effective! Did you know that there are STILL conflicting independent reports about whether guaifensin (a commonly used OTC expectorant) has any effects at all?
And just because a drug has a generic brand name doesn't make it perfectly safe either! Think of Prednisone. Or any number of more toxic, cytotoxic meds given for cancer. Medicine is still medicine, it's not a magic bullet that will cure a condition without any side-effects whatsoever.
And phen-phen was a herbal. Herbals are not regulated the same way drugs are, they are regulated as 'foods' and not as 'drugs'. What's a little more in context is something like... 'remember thalidomide'.
[This message has been edited by wrin (edited 07-17-2002).]