Question: 1 Drugs That Need To Have An Effect On The Brain Or Unborn Baby Must Be Specially Designed. Why? O Both Membranes Have A Specialised Waxy Surface That Excludes Medications. The Immune System Is More Active In These Special Areas, And The Drug Needs To Be Protected From Those Attacks. O The Barriers Contain Pumps That Exclude Most Medications. This Is …

1 Drugs that need to have an effect on the brain or unborn baby must be specially designed. Why? O Both membranes have a specialised waxy surface that excludes medications. The immune system is more active in these special areas, and the drug needs to be protected from those attacks. O The barriers contain pumps that exclude most medications. This is false – most medications can cross these barriers, which is why pregnant women for example must be careful with their medications and have them assessed by a specialist for safety.