Unit 6 Drugs Random Order Flashcards
Saw Palmetto
Use: BPH
May be eff. but not as eff. as existing drugs (azosins”
Mech: Inh test synth (enz inh)+Inh test binding to receptor
SE:
- Minimal SE
- Drug interactions due to hormone effects
Aluminum hydroxide
Al(OH)3
Antacid
Speed-slow
Duration-long
Neutralizing-low
SE:
- Constipation
- Adsorbs drugs
- Loss of phosphate
- Al toxicity
Polyethylene glycol
GI Drug
Cathartic–Osmotic agent
DOC for colonoscopy
Castor oil
GI Drug
Cathartic–Gastric Irritants
Mech: Stimulate gastric nn
Increase motility
Decrease electrolyte secretion into gut
SE:
- Nephritis
- Liver damage
Linaclotide
GI Drug
Cathartic–Secretion enhancer
Mech: Activate guanylate cyclase
Increase Cl secretion in stomach
Garlic
Uses: Decrease blood lipids
May slightly lower blood lipids
1 fresh clove/day
SE:
- Induce P450
- Bad breath
- Decrease clotting
- Decrease conc. of some reverse transcriptase inh.
Mg(OH)2
GI Drug
Cathartic–Osmotic agent
AKA Milk of Magnesia
Codeine
Tx: Diarrhea
Narcotic agent
Mech: act a specific receptor
Not generally used for obvious reasons
Digoxin
Emetic–central stimulant
Mech: Stimulates DA sites in CTZ
Sucralfate
GI drug-Enhance mucosal defense
Aluminum salt
Tx: Ulcers
Mech: Complex that becomes viscous and binds to damaged mucosa when exposed to acid
SE:
- Constipation
- Excess Al absorption
Contraindication: H+ depleters (PPI or antacids)
SucrALfate=ALuminum salt→Excess Al
Sucralfate=sucrose=sticky…so this sticks to damaged mucosa
Immunosuppressants for IBS
Methotrexate
Cyclosporine
Miglitol
Tx: Diabetes
Glucose abs. delayers
Mech: Inh. alpha glucosidase
Prevents breakdown of complex carbs in gut
SE:
- Unabsorbed carbs ferment in gut
- Cramps
- Diarrhea
- Flatulence
Mig--litol
_Midg_ets (Mack) are little b/c they don’t absorb any carbs
Dronabinol
Anti-emetic–THC derivative
Mech: Bind cannabinoid receptor
SE: Increased appetite
Calcitonin
Tx: Ca disorders
Mech: Binds to and inh. osteoclasts
Effects opposite of PTH
Secreted by thyroid gland
1st line of defense for Paget’s disease
SE:
- Increase risk of cancer
What are the short acting designer insulins?
Regular human insulin
Lispro
Aspart
Glulisine
2-5 hrs
Pramlintide
Tx: Diabetes
Amylin analogs
Mech: Activate amylin receptor→
Decrease gastric emptying
Decrease appetite
Route: SubQ before meals
SE:
- Severe hypoglycemia
- prAMLINtide=AMyLIN analog*
Scopolamine
Anti-emetic–anti-cholinergic
Mech: Block muscarinic receptor
Route: Patch
SE:
- Dry
- Drowsy
- Etc.
What are the gastric irritants used as cathartics?
Cascara
Senna
Castor oil
Bisacodyl
Psyllium
GI Drug
Cathartic–Bulk adding agent
Mech: Like eating fiber
Yohimbe
Use: ED
Mech: Alpha 2 blocker in CNS
SE:
- Hypertension
- MAOI
- CNS excitation
- Tachycardia
- Tremor
Ergocalciferol (D2)
Tx: Ca disorders
Mech: Vit D analog
Less potent than calcitriol
SE: Hypothyroidism
Tolbutamide
Tx: Diabetes
Oral hypoglycemic agents
First gen sulphonylureas
Mech: K channel blockers
Block K channels on B cells →Increase Ca→Insulin secretion
Duration: 6-12 hrs
Contra/Indications:
- Do not use if you have renal or hepatic damage
- Not overweight
- Have some islet fxn
SE:
- Hypoglycemia and hypoglycemia coma
- More common in drugs w/ longer duration
- Can be teratogenic
- Can increase death due to cardiovascular problems
What are the stool softeners?
Dioctal sodium sulfosuccinate
Mineral oil
Alpha galactosidase
Tx: Diarrhea
Mech: Increase metab. of oligosacc.→digestible sugars
Oligosacc. produce gas
- Alpha GAlactoSidase inh. GAS production*
- *Be careful there are alpha-glucosidase inh in the diabetes section**
Misoprostole
GI drug-Enhance mucosal defense
Tx: Ulcers
Drop in PGs→Ulcer
Asprin (NSAIDs) and GCs can decrease PGs
Mech: Prostaglandin analog
SE:
- Uterine contractility (abortifacient)
- You eat miso soup when you have a stomach ache because it is prostagrandin anarog (say that w/ a strong asian accent)*
Which antihistamines are used as anti-emetics?
Diphenhydramine
Dimenhydramine
Meclizine
Cyclizine
-prazole
GI drug
Decrease acid formation
Mech: ATPase inhibitor
Known as proton pump inhibitor (PPI) but actually irreversibly inhibit ATPase required to drive H+ pump
Best available class of GI drugs
Prodrug-activated by acid
They are weak bases though→ stay in parietal cell
SE:
- Hypochlorhydria-lack of H+ production
- Decrease Ca absorption→osteoporosis
- Decrease Vit B12 absorption
Isophane
Tx: Diabetes
Designer insulin
Protamine insulin
Intermediate acting
Glargine
Tx: Diabetes
Designer insulin
Short acting (24+ hrs)
Determined to get large (that a long time)
Detemir +glargine=long acting insulins
-setron
Ondansetron
Granisetron
Dolasetron
Palonosetron
Anti-emetic (for IBS+chemo)
Mech: 5HT receptor blocker
Affect CTZ +rec. in gut
SE: Constipation
_SE_lective _T_e_R_minators _O_f _N_ausea
-SETRON
-setron blocks serotonin
Echinacea
Use:
- Upper resp. inf.
- Wound healing
- Antifungal
Can decrease sympt. of flu if used early
SE:
- Allergies
- Related to ragweed
Cinecalcet
Tx: Ca disorders + hyperparathyroidism
Mech: Calcium mimetic
Sensitizes parathyroid Ca receptors to Ca→Decrese PTH secretion
Like there is a lot of Ca around
SE
- Hypocalcemia
- Nausea
- Diarrhea
Fluoride
Tx: Ca disorders
Effects: Increase osteoblasts
Makes bone harder but more brittle
Not for osteoporosis
Cyclizine
Anti-emetic–Antihistamine
Mech: Block H1 receptor
SE: Anticholinergic effects
Diphenoxylate
Tx: Diarrhea
Narcotic agent
Mech: act a specific receptor
Acts primarily in gut
Opiate like effects in CNS though too
Given in comb w/ atropine to avoid abuse
Nabilone
Anti-emetic–THC derivative
Mech: Bind cannabinoid receptor
SE: Increased appetite
What are the osmotic cathartics?
MgSO4
Mg(OH)2
Polyethylene glycol
Compazine
Anti-emetic
Mech: DA blocker
*Related to anti-psychotic drugs *(phenothiazine)
SE: Extrapyramidal effects
Magnesium hydroxide
Milk of magnesia
Antacid
Speed-slow
Duration-medium
Neutralizing-high
SE:
- Laxative
- Some Mg toxicity
Cascara
GI Drug
Cathartic–Gastric Irritants
Mech: Stimulate gastric nn
Increase motility
Decrease electrolyte secretion into gut
SE:
- Nephritis
- Liver damage
Ginseng
Uses: Increase energy
No clear effect
Scopolamine
Tx: Diarrhea
Anti-cholinergic agent
Mech: Blocks muscarinic receptor
SE: Many systemic