Well my friend, if you are asking how to prevent addiction, there are two methods. First, don't do drugs at all, then you won't be addicted.
Second, if you are addicted, a pharmacuetical drug called Seroquel is great for overcoming addictions, and it's fairly easy to obtain.
The Earth's gravitational attraction prevents gasses from escaping into outer space.
Lithium does NOT prevent pregnancy.
To prevent additional heart attacks, aspirin and an anticoagulant drug often follow the thrombolytic drug.
Digibind is a drug which can bind to digoxin so as to prevent possible overdose.
Zidovudine (ZDV, AZT, Retrovir) is the only drug that has been proven to help prevent fetal HIV infection.
This drug (Tramadol) is a pain killer and it does not prevent the stroke or heart attack.
The dosage of which drug must be tapered off slowly to prevent acute adrenal insufficiency?
Yes
It is for people who get seizures and is used to control them.
PCP is a drug, the only real way to prevent it would be to not do it.... not sure if that's what you are asking
An antidysrhythmic is a drug used to treat or prevent dysrhythmia.
Tamiflu