Pharmacology For Dummies Pdf -
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Drugs that turn receptors "off" or block them. They sit in the receptor "lock" so the real key cannot get in (e.g., beta-blockers block adrenaline receptors to lower heart rate). The Therapeutic Index (Safety Margin)
Put the drug class suffix on the front (e.g., "-statin"). Put the mechanism, major side effects (e.g., muscle pain), and nursing considerations on the back. pharmacology for dummies pdf
Slowest route because the drug must pass through the stomach and intestines.
Write the generic name on one side and the class, mechanism, and side effects on the other. Put the mechanism, major side effects (e
How a drug is delivered drastically changes how fast it works and how much of it actually reaches the systemic circulation (). Description Oral (PO) Swallowing pills, capsules, or liquids. Convenient, safe, pain-free. Slow onset; drug can be destroyed by stomach acid. Intravenous (IV) Injecting directly into a vein. 100% bioavailability; instant effect. Irreversible; higher risk of infection or toxicity. Subcutaneous (SubQ) Injecting into the fatty layer just below the skin. Good for slow, sustained release (e.g., Insulin). Can cause local irritation; requires needles. Transdermal Patches stuck to the skin (e.g., Nicotine patches). Continuous delivery; bypasses the stomach. Only works for specific, highly potent drugs. Inhalation Breathing in gases or aerosols. Rapid delivery straight to the lungs. Requires proper technique; can irritate airways. 4. Major Drug Classes You Should Know
Every drug has a dose that is effective, and a dose that is toxic. The safety margin between these two points is called the . How a drug is delivered drastically changes how
The body (mostly the liver ) tries to break the drug down to make it easier to get rid of. This is where "Prodrugs" come in—drugs that only become active after the liver processes them.
Severe, unexpected, and potentially dangerous reactions to a medication.
