Biology · GCSE · Health & Disease
Testing new medicines
Testing new medicinesFree1:58Heddy Score 3 of 7, below the standard
What you need to know
- A new medicine is tested in the laboratory before people take it, to see whether it is safe.
- Clinical trials then test how well it works and what dose to use.
- A placebo is a dummy treatment, and a double-blind trial means neither the patient nor the doctor knows who received the real drug.
- That design stops expectations from distorting the results.
In this clip
Runs 1:58, from 1:27 to 3:25 of the full video.
Heddy ScoreSeven checks every clip must pass before students see it: trusted, on the map, accurate, focused, accessible, safe, and proven by students.3/7, Below the standard
See the seven stars
- Trusted source · passed. The creator's own upload, live and playable here.
- On the map · not judged yet. A teacher watched it: it mainly teaches this map topic.
- Spec-true · not judged yet. Accurate, and right for the current UK specification.
- Focused · passed. One idea, short enough to watch in one go.
- Accessible · passed. Good captions, clear sound and pictures.
- Safe for children · not judged yet. Right for 11 to 16 year olds, with no sales pitch.
- Proven · not judged yet. Earned from our students: they learn from it, find it helpful and watch it to the end.
Our students
Not enough students yet
Our own students' answers. These are what move ★7 Proven.On YouTube
How the Heddy Score works372K views · 4.11K likes · Freesciencelessons 995K subscribers
As reported by YouTube on 2026-11-01. Not part of the Heddy Score.Why we picked it
It separates where drugs come from from how a new medicine is tested, including placebos and double-blind trials.
Freesciencelessons on YouTubechecked 2026-10-18
Plays from youtube-nocookie.com. No YouTube cookies until you press play.