Drop chances

ItemStage 10Stage 50Stage 100Avg count
Medical Journal100%100%100%1
Sewing Kit31%31%31%0.35
Bandage31%31%31%0.35
Aloe Cream31%31%31%0.35
Glue25%25%25%0.42
Blood Bag25%25%25%0.28
Duke's Casino Token25%25%25%17.26
Old Cash25%25%25%17.25
Splint11%11%11%0.11
Beer5.5%5.5%5.5%0.06
Red Tea5.5%5.5%5.5%0.06
Coffee5.5%5.5%5.5%0.06
Yucca Juice5.4%5.4%5.4%0.06
Goldenrod Tea5.4%5.4%5.4%0.05
Painkillers4.5%4.5%4.5%0.05
Vitamins4.4%4.4%4.4%0.04
Steroids4.0%4.0%4.0%0.04
First Aid Bandage3.0%3.0%3.0%0.03
Can of Pasta2.9%2.9%2.9%0.03
Can of Sham2.8%2.8%2.8%0.03
Can of Tuna2.7%2.7%2.7%0.03
Can of Salmon2.7%2.7%2.7%0.03
Can of Peas2.7%2.7%2.7%0.03
Can of Chili2.7%2.7%2.7%0.03
Large Beef Ration2.6%2.6%2.6%0.03
Can of Stock2.6%2.6%2.6%0.03
Lamb Rations2.6%2.6%2.6%0.03
Can of Dog Food2.5%2.5%2.5%0.03
Plaster Cast1.3%1.3%1.3%0.01
Jar of Honey1.2%1.2%1.2%0.01
Herbal Antibiotics0.30%0.30%0.30%0

Average count per open at loot stage 50. From 40,000 simulated opens per stage; perks that raise loot are not counted.