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Pharmacology
PHARM BASICS
• Therapeutic Drugs- agents which have a medicinal purpose
• Recreational Drugs- agents with no medicinal purpose or being used in a non-medicinal manner
Pharmacology- the study of medicines and their effects on the body
• Right Patient• Right Medication• Right Route• Right Dose• Right Time/Date
5 Rights for Safety
• Drug Action• Drug Indications• Drug Contraindications• Side Effects• Dose
What you should you understand about medications?
Route of Administration
• Oral• Sublingual• Inhalant• Injection• Topical
• IV• Vaginal• Rectal
• Over the counter medications- anyone can purchase; safe for public to use as directed
• Prescription medications- medications that are recommended by a physician or psychiatrist
Legal Issues
• Medications should be kept in well-labeled containers
• Minors (those under age 18) cannot be given OTC medication by anyone other than parent or someone with written permission from parent or physician
Legal Issues
• Administering Medications: providing a single dose to person
• Dispensing Medications: providing several doses to a person
• An Athletic Trainer may administer a dose, but cannot dispense any medication!
Administering vs. Dispensing Medications
COMMON THERAPEUTIC MEDS
• Antibiotics: agents that fights bacterial infections– Prescription– Penicillins, Erythromycins, Sulfa Drugs,
Tetracycline• Antifungals: agents that fight tineas (fungal
infections)– OTC or prescription – Lamisil, Tinactin, Desenex, Micatin
Infection Fighters
• Can be OTC or prescription• Narcotics: depress pain impulse and
respirations; mainly opiates– Oxycontin, codeine, vicodin
• Topical Analgesics: counter irritants or local anesthetics– Flexall, Ben Gay, Icy Hot, Aspercreme, Tiger
Balm, Theragesic– Injectables like Lidocaine, Novocain
Analgesics- Pain Relievers
Pain Relievers: Acetaminophen vs. Aspirin
Tylenol
• Pain reliever• Antipyretic: fever
reducer• More tolerable than
aspirin
Aspirin• Pain reliever• Antipyretic• Anti-inflammatory• Anti-coagulant• GI irritating• Should not be used by
minors • Higher risk of allergic
reaction
NSAID- Non-steroidal Anti-inflammatory Drugs
• Analgesic• Antipyretic• Anti-inflammatory
• Can cause GI upset, headaches, tinnitus
• Advil, Motrin, Ibuprofen, Naproxen Sodium, Aleve
Stomach Medications• Antacids: reduce
stomach acid– Relief of heartburn,
ulcers, indigestion– Tums, Rolaids, Alka-
Seltzer
• Laxatives– Poor diet can cause
constipation(Could be symptom
of disease)
– Can cause electrolyte imbalance
– ExLax, Dulcolax
• Anti-diarrheals– Diarrhea is
symptom of problem-infection?
– Imodium, Lomotol, Kaopectate
ASTHMA
Asthma
• Air passages swell and narrow
• Signs/Symptoms:– Coughing– Wheezing– Shortness of Breath– Tingling/chest tightness
http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0001196/
Emergency Symptoms:CyanosisRapid pulseRapid heart rateSweatingExtreme breathing
difficulty
Medicinal Care
http://www.momsteam.com/health-safety/common-myths-about-asthma-tips-for-parents-to-prevent-asthma-attacks
• Control Medications– Prevent the attack
from occurring
• Quick Relief Medications– Rescue drugs used
during attacks
• Long acting Beta2-agonists– Symbicort
• Inhaled corticosteroids– Flovent, Pulmicort
• Leukotriene inhibitors– Singular
Control Medications
Quick Relief Meds
“What You and Your Family Can Do About Asthma” by the Global Initiative for Asthma Created and funded by NIH/NHLBI
• Short acting Beta2-agonists (bronchodilators)– Advair, Albuterol,
Proventil, Ventolin
• Oral (cortico) steroids– Prednisone– Pills, liquid, capsules
How do you know an asthma attack is coming?
http://www.pamf.org/asthma/selfcare/peakflow.html
• Allergens and pollution exposure
• Use Peak Flow Meter– Can be used prior to
symptoms– Should be used daily
morning and evening to determine averages
How to use a Peak Flow Meter
http://www.tree.com/health/asthma-symptoms.aspx
Set measuring arrow at zero• Inhale deeply• Place mouthpiece in mouth sealing lips tightly• Exhale as strongly as possible• Record reading• Repeat for a total of 3 times, keeping the best
reading• http://www.mayoclinic.com/health/asthma/MM00399 - video
demonstration
Interpreting the Results
• Green zone- good breathing
• Yellow zone- moderate asthma attack– Use rescue drugs
• Red zone- severe asthma attack– May need EMS
activation
http://www.bcbsks.com/behealthy/DiseaseMgmt/Asthma/peakFlow.htm
COLD & ALLERGY MEDS
• Most are viruses– Antibiotics do not work well!– Increase chance of developing allergies/tolerance
to antibiotics• Treat the symptoms with OTC meds
– Analgesics, antipyretics
Colds and Flu
• Decongestants: stop runny nose– Sudafed, pseudoephedrine
• Antitussive: stops cough– Robitussin
• Expectorants: makes productive coughs– Delsym
Runny Nose and Cough
• Local reaction to the body• Antihistamines: decrease immune system
response to itching and nasal swelling– Benadryl, Claritin, Allegra– Can cause drowsiness, dizziness, headache
Allergies: Seasonal and Minor Reactions
• Hives, itching, swelling• Antipruritics: anti-itch
– Benadryl, hydrocortisone cream, topical corticosteroids
• Ice can reduce itch, swelling
Skin Allergic Responses
• Systemic reaction to body-all over body response
• Body releases histamine and airways begin to swell shut
• Breathing difficulty, anxiety, hives, swelling, cough, vomiting, congestion, wheezing
• Activate EMS
Anaphylaxis: severe allergic reaction
• Epinephrine: sympathomimetic drug that relaxes airway muscles and constricts blood vessels
• Injected into large muscle mass (thigh)• Can be injected through clothing
Epipen
Epipen Instructions1. Hold the device firmly in your fist with the black tip
pointing down. Do not touch the black tip; hold only the cylinder.
2. Remove the gray activation cap.3. Move your hand so the black tip is near your outer
thigh.4. Swing your hand away from your body, then jab the
black tip firmly into your outer thigh at a 90-degree angle. You may inject the needle through clothing that is covering your thigh.
5. Keep the device firmly in this position for ten seconds.
6. Remove the device from your thigh and rub the area with your fingers.
7. Look at the black tip to see if the needle is showing. If the needle is not showing, repeat steps 3-6.
8. If the needle is showing, you have received the full dose of epinephrine. You will notice that most of the liquid remains in the device. This is extra liquid that cannot be used.
9. Press the needle against a hard surface to retract.10. Replace the device in the carrying tube (without the
activation cap) and cover with the cap.
Epipen Instructions
ACTIVE INGREDIENTS IN OTC
• Over the counter medications are easy method to treat colds, flu and illness without intervention of a physician. It is important to understand the role of active ingredients in these medications and the link between these medications with side effects and medicinal purpose.
Active Ingredients: Purpose
Terminology
• Active Ingredient: the substance in a pharmaceutical drug or a pesticide that is biologically active
STIMULANTS
• Ergogenic Aid: performance enhancer
Terminology
Purpose of most Ergogenic Aids• Increase alertness• Increase blood
pressure• Increase tissue
temperature• Increase
competitiveness• Increase heart rate
• Increase metabolism• Increase power or
endurance• Delay fatigue• Speed up protein
synthesis• Help them feel better
• Most performance enhancers are not regulated by the FDA!– Ingredients not regulated– Claims are not always true
• Most important thing is to read the ingredient label and learn the actions of the ingredients!
Claims vs. Actual Actions
• Can have dangerous outcomes with usage• Can have short term effects
– Headache, tremors, heart arrhythmia• Can have long term effects
– Tumors, cancers, needle diseases, changes to sex organs
Downfall: Side Effects
Stimulants: Actions on the body
• Increase alertness• Increase heart rate• Increase blood
pressure• Increase
competitiveness• Increase hostility
• Delay fatigue• Increase metabolism• Increase body
temperature• Promote quickness
and agility
Types of Stimulants
• Amphetamines• Sudafed • Beta2-agonists• Cocaine/crack• Methamphetamine
• Tobacco• Caffeine• Ephedra• Guanara• Willow Bark• Bitter Orange
Stimulant Side Effects
• Tremors• Nervousness• Headaches• Heart arrhythmia• Insomnia
• Tinnitus • Dilated pupils• Increased tolerance• Withdrawal symptoms
• Anabolic: muscle-building• Androgenic: increases masculine
characteristics• Cycling: taken over a short period of time
then stopped• Stacking: taking multiple substances to
enhance desired effect
Terminology
STEROIDS
• Natural or synthetic hormones– Oral or injected
• Increase protein synthesis– Increase lean tissue and weight
• Intended use with people who:– Produce low levels of testosterone– Need to battle muscle wasting issues/diseases
• Increase or exaggerate secondary sex characteristics
Anabolic and Androgenic Steroids
• Cycling: taken over a short period of time then stopped
• Stacking: using multiple types of steroids to maximize effectiveness
• Athletes use to maximize strength and power
• Non-athletes use to look good
Steroid Use Patterns
Types of secondary effects of Anabolic-Androgenic Steroids
• Deep voice• Acne• Possible increase in
chance of cancers/tumors
• Joint pain• Increased
aggressiveness• Stunted growth
• Needle-related diseases
• Increased blood pressure
• Increase in LDL (bad cholesterol)
• Increased mood swings
Gender-specific Side Effects
Males
http://www.ehd.org/health_steroids_5.php
Females• Enlarged clitoris• Male-pattern baldness• Increased body hair
• Shrunken testes• Decreased sperm
count• Increased breast
tissue• Baldness
• Steroids get disguised in supplements
• Store-Bought Steroid Scandal: http://www.youtube.com/watch?v=pEo2YMil5Sc Tren Xtreme supplement sold at retail stores contained anabolic steroids
Steroids can be hidden in non-FDA regulated products
http://www.dipity.com/timeline/Tren-Xtreme/
Androstenedione
Most famous user was Mark McGwire. The year he surpassed Roger Maris’ home run record, he gladly admitted using Andro to increase his mass and power.
Before and After: http://www.steroidsinmlb.com/wp-content/uploads/2009/12/roids_mcgwire.jpg
• Precursor to testosterone BUT can convert to estrogen in some– High level testosterone= testosterone
produced– High level estrogen= estrogen produced
• Effects on body can be similar to steroids including side effects
• Popular supplement in late 1990s but made illegal to possess in 2005
Androstenedione
• Naturally produced in pituitary gland• Now synthetically produced• Increases conversion of amino acids into
proteins– Increases protein synthesis
• Increases fat burn
Human Growth Hormone (HGH)
• Abnormal body growth• Increased chance of heart disease• Impotence• Osteoporosis/premature growth plate
closure• Pancreatic issues (cancer, diabetes)• Death
HGH Side Effects
• All banned in sport– Steroids, andro easier to detect– HGH more difficult to detect because
produced naturally in body
Steroids, Andro and HGH…
NATURAL STIMULANTS
• Doping: unnatural use of any substance to gain an unfair advantage
Terminology
• Methods to increase oxygen delivery to tissues
• Altitude Training• Blood Doping: remove pint of blood, wait 6-8
weeks then reinject into body• Erythropoietin (EPO): natural and synthetic
method of increasing red blood cell count– Anemic athletes may be prescribed EPO
Endurance: Specific Aids
• Increase RBC count so more oxygen can be carried/utilized by muscles
• Delays fatigue thus improving performance• Found in endurance sports- cycling, distance
running, cross country skiing, endurance swimming
Blood Doping and EPO: Actions
• Increase blood viscosity• Increase blood pressure• Kidney damage• Needle/blood diseases and infections• If using another’s blood, need to have same
blood type
Blood Doping/EPO: Side Effects
• Amino Acids (AA) chain together to form proteins– Proteins build/repair tissues
• Many AAs by themselves are speculated to increase fat burning and enhance protein synthesis for muscle production
Amino Acids
• Leucine– Slows atrophy in atrophied patients– Inconclusive if increases muscle mass
• Taurine– Claims that it will increase mental performance
Common AA Supplements:
• Naturally made in liver/kidneys• Increases energy production to allow for more
sustained strenuous exercise• Shows most promise in untrained athletes
starting strength program
Creatine Monohydrate
• Muscle cramping• GI distress• Muscle strains• Harms body ability to produce creatine• Kidney/liver damage? (no long term studies)
Creatine Use Side Effects
• Medicinal use since ancient times• Some herbs, taken in small amounts, can be
harmless• Some can have negative interactions with
foods, medications• Generally not FDA approved
Herbal Supplements
• Ginseng: reduce stress, increase stamina, prevent infections
• St. Johns Wort: decrease anxiety, depression and assist with sleeping
• Wild Yam Extract: claim it can convert to a steroid (in a lab only)
• Yohimbe bark: claim it aids in weight loss; it does increase blood pressure
Herbal Examples
DRUG ABUSE
Medicines and Supplements…
• Can be abused • Become habit forming• Can become Recreational Drugs: used for
non-medical reasons with the intent of getting high, or altering mood or behavior
Causes for Drug Abuse
• Stress• Access to drugs• Peer pressure• Low self esteem• Increased
performance
• Painkiller• Experimentation• Copy role model• Escape from reality
– Psychological dependence: the drive to continue to medicate to produce pleasure or avoid discomfort
– Physical dependence: state of drug adaptation in the body
• Tolerance builds• When consumption stops abruptly unpleasant
withdrawal occurs
Psychological vs. Physical Dependence
• Cocaine• Caffeine• Tobacco • Narcotics-oxycontin• Alcohol• Marijuana
Common Addictive Recreational Drugs Seen in Athletics
• Injury/illness associated with use• Behavior/personality change• Failed drug tests• Ban from sport• Alienation from teammates• Strained social relationships
Abusive Behavior can lead to…
Recognition of Abuse
The Clinician’s Role
• Identify signs• Show concern/interest• Be prepared to discuss
ethics/legal issues• Provide emotional support• Assist in finding the right
helpYOU CANNOT SOLVE THEIR PROBLEMS!
DRUG TESTING
• Purpose is to find individuals who have problems with drug abuse
• Controversial• Where do they test?
– Some High Schools– NCAA– USOC/IOC– Some workplaces
Drug Testing
• Began in 1986• About 11,000 athletes tested annually in
Division I and II• Random testing and at some
championship events• Many colleges conduct their own testing
in addition to NCAA standardized testing
Collegiate Level Testing
• 1st positive: Lose 1 year of eligibility (and out for a full sport season)
• 2nd positive; – Street drugs: another year eligibility lost– Performance enhancing drugs: permanent
ineligibility
Positive Tests
• 1968 testing at Olympics began in order to:– Promote health– Respect for medical and sport ethics– Ensure equality for all athletes
Olympic Committee
• Athlete provides A and B sample• Sanctions range from 3months-24
months depending on the drug for a first time offense
• Lifetime ban for subsequent positive tests• Banned drug list much more extensive
that NCAA
Olympic Protocols
• Testing policies mainly based on collective bargaining units– Not uniform policies!
• Positive tests lead to treatment rather than sport bans
• MLB, NBA, NFL, NHL, PGA, MLS, Professional Tennis, Boxing
Professional Athletics