KDP categories · Top KDP authors
Toxicology (Pharmacology, Books): Amazon KDP category data
Amazon Books Best Sellers data for Toxicology (Pharmacology, Books), updated Nov 3, 2026: median price $25.30, median 51 reviews, average rating 4.6 and a KDPTop opportunity score of 27/100 (highly competitive).
| Price range (middle 50%) | $18.95 – $66.48 |
|---|---|
| Average rating | 4.6 |
| New releases (90 days) | 6% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 20% of the parent category Pharmacology (252), one of the easier corners under it.
- At $25.30 its median price beats 85% of Books categories, leaving more margin per copy.
- Prices spread wide: the middle half runs from $18.95 to $66.48, so budget editions and premium or boxed sets sell side by side.
Top 10 Toxicology best sellers
-
The Poisoner's Handbook: Murder and the Birth of Forensic Medicine in Jazz Age New York
by Deborah Blum
- List rank#1
- Price$11.29
- Rating4.6
- Reviews2,359
-
Toxic, 2nd Edition: Heal Your Body from Mold Toxicity, Lyme Disease, Multiple Chemical Sensitivities, and Chronic Environmental Illness
by Neil Nathan
- List rank#2
- Price$31.23
- Rating4.7
- Reviews94
-
NURSING DRUG GUIDE: 1100+ Medications Organized by Risk, Flagship Drugs, Core Reference & Quick-Look Tables for NCLEX
- List rank#3
- Price$21.90
- Rating4.8
- Reviews53
-
Christopher Hobbs's Medicinal Mushrooms: The Essential Guide: Boost Immunity, Improve Memory, Fight Cancer, Stop Infection, and Expand Your Consciousness
by Christopher Hobbs L.Ac. AHG
- List rank#4
- Price$10.37
- Rating4.8
- Reviews882
-
The League of Lady Poisoners: Illustrated True Stories of Dangerous Women
by Lisa Perrin
- List rank#5
- Price$20.20
- Rating4.6
- Reviews279
-
The Rain Barrel Effect: How a 6,000 Year Old Answer Holds the Secret to Finally Getting Well, Losing Weight & Feeling Alive Again!
by Stephen Cabral
- List rank#6
- Price$13.74
- Rating4.7
- Reviews1,023
-
NURSING DRUG GUIDE NEW EDITION: The Complete Nurse’s Handbook to Medications, Dosages, Side Effects, and Safe Administration for Clinical Practice and Exam Prep
by Morgan L. Whitaker
- List rank#7
- Price$28.98
- Rating3.8
- Reviews83
-
The Sensitive Patient's Healing Guide: Top Experts Offer New Insights and Treatments for Environmental Toxins, Lyme Disease, and EMFs
by M.d. Nathan, Neil
- List rank#8
- Price$31.41
- Rating4.6
- Reviews131
-
Bitten: True Medical Stories of Bites and Stings
by Pamela Nagami M.D.
- List rank#9
- Price$3.99
- Rating4.3
- Reviews205
-
Toxic Legacy: How the Weedkiller Glyphosate Is Destroying Our Health and the Environment
by Stephanie Seneff
- List rank#10
- Price$15.99
- Rating4.9
- Reviews382
Same niche in Kindle eBooks: Toxicology
FAQ
Is Toxicology a good niche for Amazon KDP?
Its KDPTop opportunity score is 27/100, which makes it highly competitive. The median best seller has 51 reviews and sells for $25.30.
How many reviews do you need to rank in Toxicology?
The median best seller has 51 reviews, and 71% of them have fewer than 100.
What do Toxicology best sellers cost?
The median price is $25.30; half of the best sellers are priced between $18.95 and $66.48.
Can new books break into Toxicology?
6% of the current best sellers were released in the last 90 days.
About this data
Data comes from KDPTop's daily crawl of Amazon's public Best Sellers pages; medians use the latest list. The opportunity score (0–100, higher is easier to enter) combines the review barrier, the share of low-review books, list turnover, new-release share and price.