Three students organizing vials in a lab classroom

Pharmacology and Toxicology (PharmTox) is an undergraduate major offered by the School of Pharmacy, leading to a Bachelor of Science in Pharmacology and Toxicology. This major covers two related biomedical sciences:

  • Pharmacology: The study of drug actions, including their sites, properties, effects, and mechanisms.
  • Toxicology: The study of harmful effects of chemicals on humans and animals, including exposure assessment, hazard identification, dose response, and risk characterization.

Both fields integrate various scientific disciplines and use advanced biotechnological methods to understand drug and toxicant actions at the molecular level. The curriculum is multidisciplinary, spanning several biomedical sciences. This major can prepare students for a variety of future careers and paths, including graduate school in the biomedical sciences, health professions like medical or dental school, or to work in the biotech or pharmaceutical industry. 

The PharmTox major is a limited enrollment, selective admission major. An application is required along with prerequisite courses - for details, see How to Get In. Pre-PharmTox students are usually enrolled in the College of Letters & Science or the College of Agricultural and Life Sciences during their first two years. Students should stay in contact with the PharmTox advisor to keep up with admission requirements and program updates. Once admitted, the core curriculum takes two years to complete (typically junior and senior years).

For those interested in becoming pharmacists, information about the Doctor of Pharmacy (PharmD) program is available here: https://pharmacy.wisc.edu/programs/pharmd/. The PharmD is required to take the North American Pharmacist Licensure Examination (NAPLEX) and become a registered and licensed pharmacist.

How to Get in

Requirements Details
How to get in Application required. Meeting the requirements listed below does not guarantee admission. (https://pharmacy.wisc.edu/academics/pharm-tox/admissions/)
Courses required to get in Students must complete the following by the end of the summer semester prior to entering the program.

Calculus I (one of)
General Chemistry (one of)
Organic Chemistry
Introductory Biology (one of)
Communication A

Social Science
  • Any Social Sciences (S) or Humanities or Social Sciences (Z) (3 credits)
GPA requirements to get in None.
Credits required to get in 60 credits must be completed by the end of the summer semester prior to entering the program. AP, IB, retrocredits, and credit-granting transfer coursework from other institutions (including coursework completed while in high school) count.
Other None.
Semester Deadline to apply Decision notification timeline
To apply for a fall start Early February End of March
To apply for a spring start This program does not accept applications to start in the spring.
To apply for a summer start This program does not accept applications to start in the summer.

Prospective Transfer Applicants

Transfer students apply separately for admission to both the University of Wisconsin-Madison and the Pharmacology and Toxicology program during the spring term for fall enrollment. Information for prospective transfer students can be found on the School of Pharmacy Information for Transfer Students page.

University Requirements

All undergraduate students must complete both the following Core General Education (Core GenEd) and University Degree and Quality of Work requirements. The requirements below apply to students whose first term at UW-Madison or whose earliest post-high school college attendance at any institution is Summer 2026 or later. 

Students whose first term at UW-Madison or whose earliest post-high school college attendance at any institution occurred before Summer 2026 should refer to the archived Guide for the requirements that apply to them.

Core General Education (Core GenEd) Requirements

Civics & Perspectives 3 credits of Civics & Perspectives coursework.
Communication & Literacy 6 credits of Communication & Literacy coursework. This requirement may be partially satisfied by a qualifying placement test score. For more information see this tiny url:
Humanities & Arts 6 credits of Humanities & Arts coursework.
Mathematics & Quantitative Reasoning 6 credits of Mathematics & Quantitative Reasoning coursework. This requirement may be partially satisfied by a qualifying placement test score. For more information see this tiny url:
Natural Science & Wellness Complete both:
  • 6 credits of Natural Science & Wellness or Natural Science & Wellness + Laboratory coursework.
  • one course must be in Natural Science & Wellness + Laboratory coursework.
Social & Behavioral Science 3 credits of Social & Behavioral Science coursework.
Total Credits 30 credits.

For more information see [this url].

University Degree and Quality of Work Requirements

All undergraduate degree recipients must complete the following minimum requirements. Requirements for some programs will exceed these requirements; see program requirements for additional information.

Total Degree 120 degree credits.
Residency Complete 30 credits in residence. A course is considered “in residence” if it is taken when in undergraduate degree-seeking status and:
  • is offered by UW-Madison and completed on the UW-Madison campus or at an approved off-site location, or
  • is offered by UW-Madison in an online or distance format, or is completed during participation in a UW-Madison study abroad/study away program.
Quality of Work Achieve at least the minimum grade point average specified by the school, college, and/or academic program.
Math Demonstrate minimal mathematics competence by:
English Language If required to take the UW-Madison English as a Second Language Assessment Test (MSN-ESLAT), demonstrate minimal English language competence by:
  • earning credit for ESL 118 at UW-Madison, or
  • achieving a qualifying MSN-ESLAT placement test score.
Language Complete one:
  • 2 high school units of a single language other than English, or
  • one course with the second semester Language designation.
Major Declaration Declare and complete the requirements for at least one major.

School of Pharmacy BS Requirements

Communications A Complete either:
  • one course with the Communication A designation, or
  • satisfaction of Communication A based on UW Placement Test.
Communications B One course with the Communications B designation.
Quantitative Reasoning A Complete either:
  • one course with the Quantitative Reasoning A designation, or
  • satisfaction of Quantitative Reasoning A based on UW Placement Test.
Quantitative Reasoning B One course with the Communications B designation.
Ethnic Studies One course with the Ethnic Studies designation.
Natural Science 6 credits with the Biological, Natural, or Physical Science designations.
Social Science 3 credits with the Social Science designation.
Humanities 6 credits with the Humanities, Literature, or Language designations.

School of Pharmacy BS degrees require the following groups of coursework:

  • Core General Education
  • School of Pharmacy BS Requirements
  • Major/prerequisite requirements

Courses can satisfy multiple requirement groups. For example, courses used to fulfill School of Pharmacy BS requirements can also fulfill major requirements and/or Core GenEd requirements. A course can fulfill multiple School of Pharmacy BS requirements if it carries those designations (e.g. Ethnic Studies and Social Science).

Overview of Requirements

The Pharmacology and Toxicology BS degree requires the following groups of coursework:

  • University general education requirements (above - those that are also prerequisite requirements will be completed before entering the program; remaining gen ed requirements can be completed at any time prior to graduation)
  • Prerequisite requirements (completed prior to admittance/entrance to the program)
  • Pharmacology and Toxicology major requirements (mostly completed after entering the program, though some courses can be completed earlier)

The PharmTox degree does not require any additional breadth courses beyond the university general education requirements. World language coursework can count towards the "Humanities/Literature/Arts" gen ed requirement.

School of Pharmacy academic policies (regarding matters such as academic and professional conduct, academic progress/probation, honor roll, pass/fail registration, and independent study coursework) are found in the PharmTox student policy handbook

Prerequisites

Calculus I

Select one of the following options: 1
MATH 221Calculus and Analytic Geometry 15
MATH 171
& MATH 217

and
10
1

MATH 211 Survey of Calculus 1 taken at UW-Madison does not fulfill the Calculus I requirement for this major.

General and Organic Chemistry

Complete one of the following general chemistry options:
CHEM 103
CHEM 104
General Chemistry I
and General Chemistry II
9
CHEM 109Advanced General Chemistry5
CHEM 115Chemical Principles I5
Complete all of the following organic chemistry courses:
CHEM 343Organic Chemistry I3
CHEM 345Organic Chemistry II3
CHEM 344Introductory Organic Chemistry Laboratory2

Introductory Biology

Complete one of the following options:
BIOLOGY/​BOTANY/​ZOOLOGY  151
BIOLOGY/​BOTANY/​ZOOLOGY  152
Introductory Biology
and Introductory Biology
10
BIOLOGY/​ZOOLOGY  101
BIOLOGY/​ZOOLOGY  102
BOTANY/​BIOLOGY  130
Animal Biology
and Animal Biology Laboratory
and General Botany
10
BIOCORE 381
BIOCORE 382
BIOCORE 383
BIOCORE 384
Evolution, Ecology, and Genetics
and Evolution, Ecology, and Genetics Laboratory
and Cellular Biology
and Cellular Biology Laboratory
10

Communication

The UW–Madison communication A requirement must be fulfilled.

Social Science

Any course that qualifies as social science (S or Z) credit, 3 credits required.

Other College Courses

Sixty (60) credits must be completed by the end of the summer semester prior to entering the program. AP, IB, retrocredits, and credit-granting transfer coursework from other institutions (including coursework completed while in high school) all count toward the 60 credits.

Pharmacology and Toxicology Major Requirements

Students must take most of their major-level coursework in very specific semesters in order to graduate within four semesters of starting the program, due to prerequisites and fall or spring-only courses - see four year plans for course sequences. It may be possible to take some major-level courses earlier if prerequisites are met; consult the advisor.  The five credits of elective coursework, statistics, genetics, and physics requirements can be completed at any time, including prior to admission to the program. The directed/independent study requirement must be performed after matriculation into the program (i.e. the first fall semester officially declared in the major or any semester thereafter).

Directed/Independent Study (699), 2 Credits

Must be completed after matriculation into the major (i.e. the first fall semester officially declared in the major or any semester thereafter) and have prior approval to meet PharmTox major requirements. Students should not wait until the final semester to try to fulfill this requirement, as it can be difficult to find a research opportunity close to graduation. The research-based directed/independent study (typically a course numbered 699) must be in a biological, chemical, or biomedical sciences department, and can include laboratory-based research, library or literature-based research, or clinical research. Experiences such as peer mentoring or teaching assistance, even if a 699 course is used for credit, cannot fulfill this requirement.

Physics I and II

Complete one of the following sequences: (consult with advisor on recommended sequences):
PHYSICS 103
PHYSICS 104
General Physics
and General Physics
8
PHYSICS 201
PHYSICS 202
General Physics
and General Physics
10
PHYSICS 207
PHYSICS 208
General Physics
and General Physics
10

Statistics

Complete one of the following:
STAT 240Data Science Modeling I4
STAT 301Introduction to Statistical Methods3
STAT 371Introductory Applied Statistics for the Life Sciences (recommended)3
STAT 324Introduction to Statistics for Science and Engineering3
STAT/​B M I  541Introduction to Biostatistics3

Biochemistry

BIOCHEM 507
BIOCHEM 508
General Biochemistry I
and General Biochemistry II
6

Physiology

Complete one of the following:
ANAT&PHY 335Physiology5
BIOCORE 485
BIOCORE 486
Principles of Physiology
and Principles of Physiology Laboratory
5

 Genetics

Complete one of the following:
GENETICS 466Principles of Genetics3
GENETICS 467
GENETICS 468
General Genetics 1
and General Genetics 2 1
6
BIOCORE 381
BIOCORE 382
BIOCORE 383
BIOCORE 384
Evolution, Ecology, and Genetics
and Evolution, Ecology, and Genetics Laboratory
and Cellular Biology
and Cellular Biology Laboratory 2
10
1

If students choose GENETICS 467 & GENETICS 468, 3 credits from this sequence will count towards the 5 required elective credits.

2

Students who have taken BIOCORE for introductory biology will have typically also completed the genetics requirement via BIOCORE courses taken sophomore/second year.

 Pathology

PATH 404Pathophysiologic Principles of Human Diseases3

Pharmacology and Toxicology Core 

Complete all of the following:
PHM SCI 558Laboratory Techniques in Pharmacology and Toxicology2
PHM SCI 679Pharmacology and Toxicology Seminar (taken twice) 11
PHM SCI 510Pharmacology Principles and Applications2
PHM SCI/​M&ENVTOX/​ONCOLOGY/​PHMCOL-M/​POP HLTH  625Toxicology I3
PHM SCI/​M&ENVTOX/​PATH/​PHMCOL-M/​POP HLTH  626Toxicology II3
1

Students need to take PHM SCI 679 in both their first and second years in the major in spring semesters (typically junior and senior years); the course is repeatable for degree credit.

 Additional Pharmacology

Complete one of the following:
BIOCHEM/​NUTR SCI  560Principles of Human Disease and Biotechnology2
BOTANY 575Special Topics (Topic: Medical Botany)3
PATH-BIO 307Superbugs, Sex, & Drugs: Why Modern Medicine Needs Evolutionary Biology2
PHM SCI 581Molecular and Cellular Principles in Pharmacology4
PHM SCI/​PHM SCI  680Principles of Pharmaceutical Sciences3

Electives in the Major

Students must complete at least 5 elective credits in the Pharmacology and Toxicology major from the below list, in any subject. Another option for fulfilling a portion or all of these 5 credits are additional directed/independent study (699) credits beyond the minimum 2 credits required for the major.  Additional 699 credits must be approved by the PharmTox program to count towards the elective requirement if they are not done under the same principle investigator that was approved for the original two credits required.

ANAT&PHY 337Human Anatomy3
ANAT&PHY 338Human Anatomy Laboratory2
AN SCI/​DY SCI  434Reproductive Physiology3
BIOCHEM/​NUTR SCI  510Nutritional Biochemistry and Metabolism3
BIOCHEM 551Biochemical Methods4
BIOCHEM/​M M & I  575Biology of Viruses2
BIOCHEM 601Protein and Enzyme Structure and Function2
BIOCHEM/​GENETICS/​MICROBIO  612Prokaryotic Molecular Biology3
BIOCORE 587Biological Interactions3
BOTANY/​AMER IND/​ANTHRO  474Ethnobotany3-4
CHEM 547Advanced Organic Chemistry3
CHEM 561Physical Chemistry I3
CHEM 562Physical Chemistry II3
CHEM 563Physical Chemistry Laboratory I1
CHEM 564Physical Chemistry Laboratory II1
CHEM 665Biophysical Chemistry3
DERM 601Skin Biology and Skin Diseases3
ENVIR ST/​POP HLTH  471Introduction to Environmental Health3
ENVIR ST/​POP HLTH  502Air Pollution and Human Health3
FOOD SCI 550Fermented Foods and Beverages2
GENETICS 545Genetics Laboratory2
GENETICS 588Immunogenetics 3
GENETICS/​MD GENET  662Cancer Genetics3
M M & I 301Pathogenic Bacteriology2
M M & I 341Immunology3
M M & I/​PATH-BIO  528Immunology3
MED PHYS/​H ONCOL  410Radiobiology2-3
MICROBIO 303Biology of Microorganisms3
MICROBIO 304Biology of Microorganisms Laboratory2
MICROBIO 305Critical Analyses in Microbiology1
MICROBIO 357General Bioinformatics for Microbiologists3
MICROBIO 626Microbial and Cellular Metabolomics3
M&ENVTOX/​CIV ENGR/​SOIL SCI  631Toxicants in the Environment: Sources, Distribution, Fate, & Effects3
ONCOLOGY 401Introduction to Experimental Oncology2
ONCOLOGY/​M M & I/​PL PATH  640General Virology-Multiplication of Viruses3
PHARMACY/​PHM SCI  632Neuroscience of Psychedelics3
PHM SCI/​B M E  430Biological Interactions with Materials3
PSYCH 450Primate Psychology: Insights into Human Behavior3-4
PSYCH 454Behavioral Neuroscience3-4
PSYCH/​ZOOLOGY  523Neurobiology3
SOC WORK 453Substance Use Disorders3
ZOOLOGY 425Behavioral Ecology3
ZOOLOGY 430Comparative Anatomy of Vertebrates5
ZOOLOGY 470Introduction to Animal Development3
ZOOLOGY 555Laboratory in Developmental Biology3
ZOOLOGY 570Cell Biology3

Quality of Work Requirements and Pass/Fail

Students must have a 2.000 cumulative grade point average at the time of graduation in order to earn a Pharmacology and Toxicology BS degree. 

No course that is used for Pharmacology and Toxicology degree requirements may be taken as pass/fail and must be taken for a letter grade (AP, IB, or other test credits or placement exemptions are excluded from this requirement).  This includes all prerequisite coursework, major requirements, and university general education requirements.

Learning Outcomes

  1. Demonstrate a knowledge and understanding of the supportive biomedical fields.
  2. Demonstrate a knowledge and understanding of Pharmacology.
  3. Demonstrate a knowledge and understanding of Toxicology.
  4. Understand scientific principles of laboratory design and presentation of scientific data.

Four-Year Plan

A minimum of 120 credits is required to earn the BS in Pharmacology and Toxicology.  Below are sample four-year plans for the Pharmacology and Toxicology major, incorporating both prerequisites and major coursework. They focus on science coursework sequencing and do not take into account factors such as AP or advance standing credits, additional summer courses, study abroad, or preparing for standardized tests like the MCAT or PCAT.

It is critical that you talk with your advisor about your tentative plan for course sequences and prerequisites, which courses are offered fall vs. spring vs. summer, etc.

Example Plan: Chemistry 103/104

First Year
FallCreditsSpringCredits
CHEM 1034CHEM 1045
MATH 2215STAT 371 or 3013
Communication A3Social Science3-4
Electives3-4Electives3-4
 15-16 14-16
Second Year
FallCreditsSpringCredits
CHEM 3433CHEM 3453
BIOLOGY/​BOTANY/​ZOOLOGY  151 (or Biocore)5CHEM 3442
Ethnic Studies3-4BIOLOGY/​BOTANY/​ZOOLOGY  152 (or Biocore)5
Electives3Humanities 3
 Electives3
 14-15 16
Third Year
FallCreditsSpringCredits
BIOCHEM 5073BIOCHEM 5083
PHM SCI 5582PATH 4043
ANAT&PHY 335 (or Biocore)5PHM SCI 6791
Humanities3PHYSICS 1034
Research (699) credits2-3Electives in the Major or add'l research credits2-3
 15-16 13-14
Fourth Year
FallCreditsSpringCredits
PHM SCI/​M&ENVTOX/​ONCOLOGY/​PHMCOL-M/​POP HLTH  6253PHM SCI/​M&ENVTOX/​PATH/​PHMCOL-M/​POP HLTH  6263
PHYSICS 1044PHM SCI 6791
Additional Pharmacology2-4GENETICS 466 (not req. if Biocore taken)3
Electives in the Major or add'l research credits2-3PHM SCI 5102
Electives3Electives4
 14-17 13
Total Credits 114-123

Example Plan: Chemistry 109, Biology in First Year

First Year
FallCreditsSpringCredits
CHEM 1095CHEM 3433
MATH 2215ZOOLOGY/​BIOLOGY/​BOTANY  1515
Communication A3Social Science3-4
Electives3-4Electives3-4
 16-17 14-16
Second Year
FallCreditsSpringCredits
ZOOLOGY/​BIOLOGY/​BOTANY  1525CHEM 3442
CHEM 3453PHYSICS 1034
Ethnic Studies3-4Humanities3-4
Humanities3-4Electives3-4
 14-16 12-14
Third Year
FallCreditsSpringCredits
BIOCHEM 5073BIOCHEM 5083
PHM SCI 5582PATH 4043
ANAT&PHY 3355PHM SCI 6791
Research (699) credits2PHM SCI 5102
Electives3Electives in the Major or add'l research credits2-3
 15 11-12
Fourth Year
FallCreditsSpringCredits
PHM SCI/​M&ENVTOX/​ONCOLOGY/​PHMCOL-M/​POP HLTH  6253PHM SCI/​M&ENVTOX/​PATH/​PHMCOL-M/​POP HLTH  6263
STAT 3713PHM SCI 6791
PHYSICS 1044GENETICS 4663
Electives in the Major or add'l research credits2-3Additional Pharmacology2-4
Electives3Electives3-4
 15-16 12-15
Total Credits 109-121

Example Plan: Chemistry 103 in Spring of First Year

First Year
FallCreditsSpringCredits 
MATH 1123CHEM 1034 
Social Science3-4MATH 2215 
Communication A3Humanities3-4 
Electives3-4Electives3-4 
 12-14 15-17 
Second Year
FallCreditsSpringCreditsSummerCredits
CHEM 1045CHEM 3433CHEM 3453
ZOOLOGY/​BIOLOGY/​BOTANY  1515ZOOLOGY/​BIOLOGY/​BOTANY  1525CHEM 3442
Ethnic Studies3-4Humanities 3-4 
Electives3-4Electives in the Major3 
 16-18 14-15 5
Third Year
FallCreditsSpringCredits 
BIOCHEM 5073BIOCHEM 5083-4 
PHM SCI 5582PATH 4043 
ANAT&PHY 3355PHM SCI 6791 
STAT 371 or 3013PHYSICS 1034 
 Research (699) credits2 
 13 13-14 
Fourth Year
FallCreditsSpringCredits 
PHM SCI/​M&ENVTOX/​ONCOLOGY/​PHMCOL-M/​POP HLTH  6253PHM SCI/​M&ENVTOX/​PATH/​PHMCOL-M/​POP HLTH  6263 
PHYSICS 1044PHM SCI 6791 
Additional Pharmacology2-4PHM SCI 5102 
Electives in the Major or add'l research credits2-3GENETICS 4663 
 Electives3 
 11-14 12 
Total Credits 111-122

Advising and Careers

Advising

During their first two college years, pre-PharmTox students are typically in the College of Letters & Science or the College of Agricultural and Life Sciences. This time is spent completing prerequisite courses and preparing to apply to the PharmTox major. Students can request to be assigned to the PharmTox advisor in addition to their primary academic advisor from their current school. They are welcome to meet with the PharmTox advisor at any time for guidance. There is no official "pre-PharmTox" designation or program to declare or be in administratively.

The PharmTox advisor supports both current undergraduates and prospective high school or transfer students interested in the major. High school and transfer students can schedule appointments by calling 608-262-6234 or emailing the advisor, while current UW–Madison students can book their sessions online via Starfish. Advising is also available during SOAR for incoming students, which includes help with curriculum planning and introductions to enrollment tools. The advisor can also connect prospective undergraduates with upperclassmen and alumni who share similar interests.

Once admitted to the major, students will have the PharmTox advisor as their primary academic advisor, ensuring they receive continuous support throughout their academic journey.

Careers

Graduates of the program are well-prepared for entry-level scientific jobs in various industries like biotechnology, consumer products, contract research, regulatory affairs, and pharmaceuticals. They can also work in academic research labs or government agencies focused on science, health, or the environment. The program provides a strong foundation for graduate education in pharmacology, toxicology, or other biomedical sciences, as well as for health professions like medical, veterinary, dental, optometry, and public health programs. With the right general education and elective courses, students can also pursue careers in scientific writing, business, regulatory roles, environmental positions, or law school. Graduates are equipped to make significant contributions to human and animal health.

The program has strong connections with its 400+ alumni who are located across the country and the globe. The PharmTox advisor can help students connect with alumni to explore careers and learn about employers.

Available Career Resources

  • The PharmTox advisor can assist with resume building, interview preparation, and career exploration, and also gives all PharmTox students access to a virtual career center via Canvas.
  • Many L&S and CALS career workshops and fairs are open to all students, including PharmTox students. The Career Exploration Center (CEC) is also available to students who are in the early stages of career exploration, especially those who have lots of ideas or no ideas yet. 
  • Current students can join the Pharmacology and Toxicology LinkedIn group to network with fellow students and alumni.
  • Handshake features employer job postings specifically available to UW–Madison students and is a great place to browse for internships and full-time jobs. Students can also post resumes and allow employers to contact them regarding potential employment.
  • The Center for Prehealth Advising assists students with preparing for and applying to professional healthcare programs, including medicine, physical therapy, physician assistant, dentistry, and more.

Wisconsin Experience

The following opportunities can help students connect with other students interested in pharmacology, toxicology, and other biomedical sciences, build relationships with faculty and staff, and contribute to out-of-classroom learning:

  • The program's small size and cohort-based model makes it easy to arrange study groups, tutoring, and social events, and funds can be requested to support these activities.
  • Students have access to a student commons, group study rooms, lockers, and a variety of gathering spaces in Rennebohm Hall. Ebling Library, located adjacent to Rennebohm Hall in the Health Sciences Learning Center, serves the School of Pharmacy student body, in addition to that of students from medicine, veterinary medicine, and nursing.
  • The School of Pharmacy hosts a variety of student organizations, several of which are available to PharmTox students. Junior and senior class presidents are elected each year and represent each cohort by providing feedback, as well as serve on various School of Pharmacy committees to represent the PharmTox program.
  • Students are required to participate in a scientific research experience for at least one semester after being admitted to the major, though continued research involvement before and after admission to the major is highly encouraged. The WISCIENCE website has step-by-step information on how to find a research opportunity, and students can also speak with the advisor for additional guidance.
  • Study abroad is definitely possible, although a winter session, spring break, or summer session experience fits most easily with the PharmTox curriculum. Visit the Study Abroad Major Advising Page for PharmTox to learn more.
  • One to two travel awards are given annually to allow seniors to attend a national conference in a field related to pharmacology or toxicology.
  • The annual School of Pharmacy research poster session provides students with an opportunity to present their research projects each spring.