A regulatory framework Although common in other process manufacturing industries (e.g., food and chemicals), continuous processing is at a nascent stage in the pharmaceutical industry, where batch manufacturing is the prevailing mode.
When the motor neurons in the brainstem are affected (bulbar ALS), the muscles used in speech and swallowing are impaired. ALS only affects muscles that are moved voluntarily (such as those in the mouth or arm) and does not impact those muscles involved in involuntary movements, such as digestion.
Signs of ALS can appear gradually. You may notice a funny feeling in your hand that makes it harder to grip the steering wheel. Or, you may start to slur your words before any other symptoms show up. Each person with the disease feels different symptoms, especially at first.