The patient had suffered a severe reaction to this particular drug.

There are many isomers of a particular drug, and each one will have its own effects.

Such letters could suggest that they demand a particular drug from their doctors, whether or not it was appropriate.

If that's not possible, ask your doctor to write an explanation about why you need this particular drug.

One insurance plan may have a $20 co-payment for a particular drug, while others charge $30 or $50.

Don't you think it's curious why they chose that particular drug to do the study on?

The effects are varied depending on the particular drug given.

The differences could affect the dose a person needed, or whether a particular drug should be used at all.

There, you are likely to find trustworthy information, but only on that particular drug.

If you suspect a particular drug or drugs, get more information on signs of use for those substances.