Exam 3 Flashcards
Opiates - Common Types
Opium, Codiene (syrup), Morphine, Herion
Opiates- three primary effects
Analgesic - relieves pain.
Antitussive - relieves cough.
Constipation - firms the stool
Opiates: Side effects
- Drowsiness, mental clouding
- Respiratory depression
- Nausea, vomiting, & constipation
- Inability to urinate
- Drop in blood pressure
- Abuse potential
Opiates: withdrawal symptoms
- Craving for drugs, anxiety.
- Yawning, perspiration, runny nose, tears.
- Pupil dilatation, goose bumps, muscle twitches, muscle aches, hot & cold flashes, anorexia.
- Increased intensity of above, insomnia, raised BP, fever, faster pulse, nausea.
- Increased intensity of above, curled-up position, vomiting, diarrhea, increased blood sugar, & “kicking the habit”.
Opiates: Oxycontin
Popularity soared in the late 90s. Users grind up the tablets & snort the powder, or mix it with water & inject it like heroin.
Opiates: Krokodil (Desomorphine)
A derivative of morphine (1932-US) that has sedative and analgesic effects 8-10x stronger than morphine. Fast onset and short duration, little nausea or respiratory depression compared to morphine. Often highly impure, scale-like appearance of skin. High is similar to heroin, but lasts 1-1.5 hours instead of 4-8 hours.
Opiates: Tramadol (Ultram)
(1994 in US) A centrally acting synthetic analgesic used to treat moderate to moderately severe pain. Agonist that induces serotonin release, and inhibits the reuptake of norephinephrine. Several states have elected to make it a Schedule IV drug.
Opiates: Tapentadol
A new synthetic atypical opioid. Made to mimic the agonistic properties of tramadol’s metabolite, M1. Schedule II, potency is somewhere between tramadol & morphine, closest chemical relative of tramadol.
Commonly Used Opiates
Heroin (smack), Morphine, Methadone, Meperidine, Hydromorphone, Oxycodone, Propoxyphene, Codeine, Loperamide, Diphenoxylate, Opium tincture
Etc. - tylenol w/ codiene, percocet, tylox, vicodin
NSAID Classification
Salicylates - includes: Aspirin, Acetaminophen (Tylenol)
Others - Ibuprofen (Advil, Motrin), Naproxen (Aleve), Ketoprofen (Orudis KT)
Naproxen (Aleve)
Single dose lasts for 8-12 hours, used for patients with persistant pain. Available as prescription since 1976 & became available OTC in 1994.
NSAID Physiological Effects
- Analgesia - Works for somatic rather than visceral pain.
- Antipyretic - Reduces fever. (<101°F)
- Anti-inflammatory - Reduces swelling (except acetaminophen). Need high, sustained doses for this effect.
NSAID: Common Side Effects
- Aspirin- Gastrointestinal irritation, bleeding, ulcer aggravation, interference with clotting; prolongs bleeding, chronic high doses cause tinnitus & hearing loss. Reyes Syndrome <15
- Acetaminophen-acute high doses or chronic exposure can cause severe damage to liver and kidney
- Ibuprofen (& newer NSAIDS)-similar to aspirin but less severe gastrointestinal and blood symptoms, damage in elderly or those with existing kidney disease.
Reye’s Syndrome
Potentially fatal complication of colds, flu or chicken pox in children. Believed to be caused by salicylate. Swelling of the brain and liver.
Amphetamines: History
1887- Synthesized
1927- effects are discovered: reduced fatigue, increased alertness, & a sense of confident euphoria.
1932- Marketed as Benzedrine in an OTC inhaler for nasal congestion. Abused.
193- Available by prescription as a pill. Used to treat narcolepsy and hyperactivity
1940- Was widely used to reduce fatigue in soldiers (still is & note: Provigil). Both dextroamphetamine (Dexedrine) & methamphetamine (Methedrine) became readily available
1971-All potent amphetamine-like compounds in nasal inhalers were withdrawn from the market.
Methamphetamine I
Especially strong amphetamine with a high abuse potential.
Currently, 3-6% of U.S. adolescents use it annually.
Due to ease of production, it is often clandestinely manufactured.
Toxic chemicals in these labs pose a threat to residents, neighbors, & the environment.
Methamphetamine I: Names and Administration
Speed or crystal: swallowed or sniffed
Crank: injected
Ice: smoked
Amphetamine Approved Uses
Narcolepsy
Short term weight reduction
Hyperkinetic Behavior (ADD/ADHD)
ADHD Facts
≈11% of children 4-17 years of age (or 6.4 million) have been diagnosed with ADHD as of 2011. Rates of diagnosis have been increasing by about 3-5%/year since 1997. Is 2-3x more common in boys than girls.
About 30-50% of people diagnosed in childhood continue to have symptoms into adulthood & between 2-5% of adults have it. Stimulant medication is used as treatment, therapeutic doses are administered.
ADHD Medications: Trade and Generic
Adderall; amphetamine (& XR - eXended Release)
Dexedrine and Dextrosta; dextroamphetamine
Vyvanse; lisdexamfetamine
Concerta and Ritalin; methylphenidate (long acting)
Metadate; methylphenidate (& ER=Extended Release)
Daytrana; methylphenidate (a patch)
Focalin; dexmethylphenidate
Cylert; pemoline
Strattera; atomextine
ADHD - Medication Side Effects
-Irritability, anorexia, insomnia, tics, psychotic symptoms, & hypertension.
Most common side effect of long term concern is growth suppression. Recommend stopping dosage during weekend & summer holidays if possible.
ADHD Meds: Effects on Neurotransmission
- Are NE agonists (act as if they are NE)
- Stimulates release of monoamines (E, NE, Seratonin)
- Inhibit MAO
- Block catecholamine reuptake
Nasal Decongestants: Generic and Brand name
ephedrine; Primatene metaraminol; Aramine naphazoline; Privine oxymetazoline; Afrin, Dristan phenylephrine; Neo-Synephrine phenylpropanolamine; Contac, Dimetapp, etc. pseudoephedrine; Sudafed, Comtrex, etc. tetrahydozoline; Visine, Tyzine, etc.
Appetite Suppressants: Generic and Brand name
diethylpropion; Tenuate fenfluramine; Pondimin mazindol; Sanorex phendimetrazine; Bondril, Plegine, Preludin phenylpropanolamine; Acutrim, Dexatrim
Cocaine History 1
2500 B.C.: Coca chewing (South America) Believed to be a gift from God.
1855: Cocaine first extracted from coca leaves.
1870: Vin Mariani, 6 mg/oz of wine. Exported Vin Mariani contained 7.2 mg/oz.
1884: Use as a local anesthetic in eye surgery. Also came to be used for toothache & in cigarettes.
1886: Coca-Cola- cocaine laced syrup & caffeine.
1901: Coca-Cola removed coca from their formula.
1905: Snorting cocaine becomes popular.
1910: First cases of nasal damage from cocaine snorting are seen in hospitals.
1912: U.S. government reports 5,000 cocaine related fatalities in one year.
1914: Cocaine banned in the U.S.
1976: Freebase cocaine first developed.
1980’s: Popularity rose. Cost decreased during this decade.
Coca Chewing
Aymaras & Quechuas of Bolivia, Peru & other Andean countries. Used to alleviate pain. Chewing is done softly to break the cell membranes, and the bolus formed is kept in the mouth lining. Lllijta is added, made of several types of vegetal ashes & stimulates the action of the alkaloids in the leaf.
Anesthetic effect on the mucosa next to the bolus, & the mouth/throat. Miners & farmers may chew 2-4 times/day when work is hard.
Smoking Description
Coca paste, freebase cocaine, & crack: smoked in glass pipes. Cocaine smokers achieve maximum effects, 1-2 min after inhalation. Similar to iv administration, the effects of inhaled cocaine last 30 min.
Xanthine Family
Caffeine or trimethylxanthine.
Theophyline - Found in tea.
Theobromine - Found in chocolate.
Xanthine: Behavioral Effects
- Low doses enhance mental alertness & reduce fatigue.
- High doses impair performance (restlessness, nervousness, irritability, insomnia, diuresis, muscle twitching, tremors, rambling thoughts/speech, & stomach complaints & headaches).
- May effect introverts/extroverts differently, effects children more.
- Reduces boredom.
Caffeine Withdrawal
Cold turkey is problematic. Easing back over a few days minimizes the problem. The symptoms reach a peak after a day or two & taper off within a week.
Caffeine: Physiological Effects
Diuretic, increases basal metabolic rate, alleviates some types of headache pain, stimulates gastric acid & pepsin secretion, dilates bronchi of the lungs
At high doses it may increase heart rate & BP.
Lethal Dose: 30-80 cups
>500 mg - panic, chills, nausea, clumsiness
5 to 10 gms - seizures, respiratory failure, & death
Six overdose deaths have been reported (1976).
Khat (Cot)
Shrub native to E. Africa & Southern Arabia. Chewed, smoked, brewed, or mixed with soft drinks or alcohol. Similar to amphtamines but less potent effects. No physical dependence or tolerance. Leaves <48 hrs old are preferred, it can be preserved by freezing. Contains cathinone & cathine. Cathinone is 10x more potent than cathine & is only present in fresh leaves.
Bath Salts
Designer drugs containing substituted cathinones. Most varieties contain methylenedioxypyrovalerone (MPDV), mephedrone & pyrovalerone. Side effects– intense paranoia, hyperthermia & hallucinations.
-Over 6,100 emergencies involving bath salts were reported by poison-control centers in 2011, up from 303 cases in 2010 (Daily Beast).
CAT or Methcathinone
Structural analogue of methamphetamine & cathinone, made illegal in 1993. Most commonly snorted, can be taken orally (by mixing it with a beverage) or diluted in water & injected iv. Has abuse potential equivalent to methamphetamine & produces amphetamine-like effects.