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.

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).

Acupuncture is a complementary therapy, which is sometimes used alongside more conventional approaches, to treat a number of symptoms in MS. Learn more in this A-Z entry.

Advance care planning (ACP) is the process of thinking, and having conversations, about the care you would like in the future if your health were to change.

Advanced multiple sclerosis (AMS) describes severe burden or disabilities caused by MS, requiring complex care. Here are some ideas to help you and your carers get the support you need.

Alprostadil (known as Caverject, Muse, Viridal Duo, or Vitaros) is a treatment for erectile dysfunction, a symptom which can affect men with multiple sclerosis (MS).

Altered sensations, such as pins and needles, burning or crawling feelings, numbness or tightness are common in multiple sclerosis. Find out more in this A-Z entry.

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