Puzzled is a Half-Life mod about solving puzzles. There is very little combat and all of it can be avoided with a little thought.
Each medkit is different by how much health it gives you except the Half-Life 2 style and the Bloody medkit (bloody medkit not shown in video) The here is the health they give
Adrealine Shot
item_medical_adrenaline
heals 60
Medical Supply Box
heals 50
Medical Supply Bag
heals 80
Donut Box
heals 100
Millitary Medkit
heals 15
Pizza
heals 75
Half-Life 2 Style
heals 25
Bloddy medikit
heals 25