The annual cost of providing HIV treatment and care in the UK could be as high as Â£758 million by 2013, investigators suggest in the online journal PLoS One. When the researchers included social care into their calculations, the 2013 cost was estimated to be well over Â£1000 million.
Chlorpheniramine maleate is part of a class of drugs called antihistamines. Specifically, it is an H1 receptor antagonist. This means that it blocks a specific type of histamine receptor in the body known as H1 receptors.
Prochlorperazine is a phenothiazine drug. Most drugs in this category are used as anti-psychotics (neuroleptics). Neuroleptic means nerve seizing, and describes the semi-paralyzing effect these drugs have on the brain and nervous system. In the UK, prochlorperazine maleate is available as Buccastem M in buccal form as an over-the-counter treatment for migraine. 2  In this indication it blocks the chemoreceptor trigger zone (CTZ) in the brain, which is responsible for causing severe nausea and vomiting.