Suing a big pharmaceutical company may seem like an uphill battle, and that is why you will want an experienced attorney to work on your case.
In one such case, a man wants to sue the pharmaceutical company on behalf of his mother. He says that her doctor prescribed a medication that created an ulcer, which led to internal bleeding, and then she had a massive stroke.
One of the first things you should do is to get an appointment with an attorney. Take them all the information you have about the product. Most law firms will be happy to talk with you and will offer a consultation at no charge.
The attorney is then able to find out if a product is indeed defective or has somehow been mis-prescribed or misused, or is responsible for the injuries you claim. There has to be a causal connection between the use of a product and the injury you claim.