Pharmaceutical companies or pharmacists can make errors and mistakes that qualify as medical malpractice. If a pharmaceutical company or manufacturer failed to warn physicians of a drug’s potential side effects or dangers and the drug then caused a patient injuries, they may be held liable in medical malpractice cases.
Since physicians have the primary duty of care to their patients, though, they are responsible for communicating medication risks and side effects. If the pharmaceutical company informed the physician, then they are generally not responsible.