Weakness in multiple sclerosis can be a direct result of MS, caused by poor transmission of messages by damaged nerves, mainly within the spinal cord. Read more about weakness in this A-Z entry.

Meet our Board of Trustees, who together monitor our strategic objectives and direct the running of MS Trust.

Are you interested in using the MS Trusts website? Find out more about the MS Trust's website policy here.

Acceptance and commitment therapy (ACT), is a type of psychological therapy used for multiple sclerosis symptoms such as anxiety, pain and depression. Read more in this A-Z entry.

Action potential simulation (APS) is a complementary therapy which some people use as a treatment for pain in multiple sclerosis (MS).

Amantadine (Symmetrel) is a drug used for treating fatigue in multiple sclerosis. Find out more about Amantadine in this A-Z entry.

Learn how amitriptyline, an antidepressant, can help relieve nerve pain for people with multiple sclerosis (MS). Discover more in this A-Z guide.

The Association of British Neurologists (ABN) is the professional association for neurologists in the UK. Its aim is to advance standards of care, education, and research.

Avonex (interferon beta 1a) is a disease modifying drug treatment for relapsing remitting multiple sclerosis. You self-inject Avonex into a muscle once a week.