← Top 200 Drugs – PTCB Pharmacy Technician Certification

PTCB Pharmacy Technician Certification Study Guide

Key concepts, definitions, and exam tips organized by topic.

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Top 200 Drugs – PTCB Pharmacy Technician Certification Study Guide


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Overview


The Top 200 Drugs is one of the most heavily tested areas on the PTCB exam, requiring technicians to recognize brand and generic names, understand drug classifications, identify therapeutic uses, and know critical counseling points and safety warnings. Mastery of this material is essential for safe medication dispensing and patient care. This guide organizes key drug knowledge into focused categories with exam-ready tips and review checklists.


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Section 1: Brand & Generic Name Recognition


Overview

The PTCB exam frequently tests your ability to match brand names to generics and vice versa. Memorizing these pairs — along with their drug class and primary use — is the most efficient study strategy.


Core Drug Pairs to Know


| Brand Name | Generic Name | Drug Class | Primary Use |

|---|---|---|---|

| Lipitor | Atorvastatin | Statin (HMG-CoA reductase inhibitor) | Lower cholesterol |

| Glucophage | Metformin | Biguanide | Type 2 diabetes (first-line) |

| Synthroid | Levothyroxine | Thyroid hormone | Hypothyroidism |

| Norvasc | Amlodipine | Calcium channel blocker (CCB) | Hypertension, angina |

| Zithromax | Azithromycin | Macrolide antibiotic | Bacterial infections (pneumonia, sinusitis) |

| Prilosec | Omeprazole | Proton pump inhibitor (PPI) | GERD, peptic ulcer disease |

| Plavix | Clopidogrel | Antiplatelet agent | Reduce MI and stroke risk |

| Zoloft | Sertraline | SSRI | Depression, anxiety disorders |

| Neurontin | Gabapentin | Anticonvulsant | Neuropathic pain, seizures, postherpetic neuralgia |

| Prinivil / Zestril | Lisinopril | ACE inhibitor | Hypertension, heart failure |


Key Terms

  • • Brand name – The trademarked name given by the manufacturer (always capitalized)
  • • Generic name – The non-proprietary, chemical name of the drug (lowercase)
  • • HMG-CoA reductase inhibitor – Enzyme-blocking mechanism of statins that reduces cholesterol synthesis in the liver
  • • SSRI – Selective Serotonin Reuptake Inhibitor; increases serotonin availability in the synapse
  • • PPI – Proton Pump Inhibitor; blocks the gastric H+/K+ ATPase pump to reduce stomach acid

    • Watch Out For

    > ⚠️ Lisinopril has TWO brand names — Prinivil AND Zestril. Both may appear on the exam. Know both.


    > ⚠️ Neurontin (gabapentin) is often mistaken for a sedative or opioid. It is an anticonvulsant — but its off-label uses (pain, anxiety) are very common in practice.


    > ⚠️ Do not confuse Prilosec (omeprazole) with Prevacid (lansoprazole) — both are PPIs but are different drugs with different generics.


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    Section 2: Drug Classification & Mechanism of Action


    Overview

    Understanding how a drug works allows you to predict its uses, side effects, and interactions — even for drugs you haven't directly memorized. Group drugs by class to maximize your study efficiency.


    Key Drug Classes & Examples


    #### Cardiovascular Drugs

  • • Beta-Blockers – Block adrenergic receptors to reduce heart rate and blood pressure

    • - Metoprolol succinate (Toprol XL) – Beta-1 selective; used for hypertension, angina, heart failure

    - Tip: "-olol" suffix = beta-blocker (e.g., atenolol, carvedilol, metoprolol)

  • • ACE Inhibitors – Block angiotensin-converting enzyme; used for HTN and heart failure

    • - Lisinopril (Prinivil/Zestril)

    - Tip: "-pril" suffix = ACE inhibitor

  • • ARBs (Angiotensin II Receptor Blockers) – Block AT1 receptor; similar to ACE inhibitors but no cough

    • - Losartan (Cozaar)

    - Tip: "-sartan" suffix = ARB

  • • Calcium Channel Blockers (CCBs) – Block calcium influx in vascular smooth muscle; reduce BP and heart rate

    • - Amlodipine (Norvasc)

    - Tip: "-dipine" suffix = dihydropyridine CCB

  • • Loop Diuretics – Inhibit Na-K-2Cl transporter in the loop of Henle → increased urine output

    • - Furosemide (Lasix)

  • • Antiplatelet Agents – Prevent platelet aggregation to reduce clot formation

    • - Clopidogrel (Plavix) – Blocks ADP P2Y12 receptor on platelets


    #### Anticoagulants

  • • Warfarin (Coumadin) – Vitamin K antagonist; blocks vitamin K epoxide reductase

    • - Prevents activation of clotting factors II, VII, IX, and X

    - Monitored with INR (target 2–3 for most indications)


    #### Respiratory Drugs

  • • SABAs (Short-Acting Beta-2 Agonists) – Relax bronchial smooth muscle → bronchodilation

    • - Albuterol (ProAir, Ventolin) – Quick-relief/"rescue" inhaler for asthma

  • • LTRAs (Leukotriene Receptor Antagonists) – Block cysteinyl leukotriene receptors → reduce inflammation

    • - Montelukast (Singulair) – Used for asthma maintenance and allergic rhinitis


    #### CNS/Psychiatric Drugs

  • • SSRIs – Block serotonin reuptake transporter (SERT) → increased synaptic serotonin

    • - Sertraline (Zoloft)

  • • CNS Stimulants (Schedule II) – Increase dopamine and norepinephrine release

    • - Amphetamine/dextroamphetamine (Adderall) – Used for ADHD and narcolepsy


    Key Terms

  • • Beta-1 selective – Acts primarily on the heart (not lungs); safer in asthma/COPD patients
  • • Bronchodilation – Widening of the airways; key goal in asthma treatment
  • • Leukotriene – Inflammatory mediator that causes bronchoconstriction and mucus production
  • • Vitamin K epoxide reductase – Enzyme blocked by warfarin; essential for clotting factor activation
  • • INR (International Normalized Ratio) – Lab test used to monitor warfarin therapy

    • Watch Out For

    > ⚠️ ARBs vs. ACE Inhibitors: Both lower blood pressure via the renin-angiotensin system, but ARBs do NOT cause a dry cough. If a patient develops a cough on lisinopril, they are often switched to losartan.


    > ⚠️ Albuterol is a RESCUE inhaler (short-acting). Do not confuse with salmeterol (Serevent), which is a long-acting beta agonist (LABA) used for maintenance only — never as a rescue inhaler.


    > ⚠️ Adderall is Schedule II — zero refills allowed. High abuse potential must always be flagged.


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    Section 3: Indications & Therapeutic Uses


    Overview

    Knowing why a drug is prescribed helps you catch dispensing errors and answer clinical scenario questions on the exam. Many drugs have multiple approved uses — know the primary indications.


    Drug Indications Summary


    | Drug (Brand) | Primary Indication(s) | Notes |

    |---|---|---|

    | Methotrexate | Rheumatoid arthritis (DMARD), psoriasis | At low weekly doses = DMARD; at high doses = chemotherapy |

    | Sildenafil (Viagra / Revatio) | Erectile dysfunction; pulmonary arterial hypertension | Two brand names, two indications |

    | Tamsulosin (Flomax) | Benign prostatic hyperplasia (BPH) | Alpha-1 blocker; improves urine flow |

    | Ondansetron (Zofran) | Nausea and vomiting (chemotherapy, postoperative) | 5-HT3 serotonin receptor antagonist |

    | Duloxetine (Cymbalta) | MDD, GAD, diabetic neuropathy, fibromyalgia, musculoskeletal pain | SNRI with broad FDA-approved indications |

    | Rosuvastatin (Crestor) | Hyperlipidemia; cardiovascular prevention | Reduces LDL and triglycerides |

    | Acetaminophen/Codeine (Tylenol #3) | Mild to moderate pain | Codeine is Schedule III; converted to morphine in body |

    | Gabapentin (Neurontin) | Neuropathic pain, postherpetic neuralgia, seizures | Off-label: anxiety, restless leg syndrome |

    | Montelukast (Singulair) | Asthma (maintenance), allergic rhinitis | NOT a rescue medication |


    Key Terms

  • • DMARD – Disease-Modifying Antirheumatic Drug; slows progression of autoimmune conditions
  • • BPH – Benign Prostatic Hyperplasia; non-cancerous prostate enlargement causing urinary symptoms
  • • 5-HT3 antagonist – Blocks serotonin receptor subtype 3; controls nausea
  • • SNRI – Serotonin-Norepinephrine Reuptake Inhibitor; affects both serotonin and norepinephrine
  • • PDE-5 inhibitor – Phosphodiesterase-5 inhibitor; increases cGMP → vasodilation

    • Watch Out For

    > ⚠️ Methotrexate dosing matters critically. Low weekly doses = autoimmune treatment. High doses = cancer chemotherapy. Dispensing the wrong frequency could cause fatal toxicity.


    > ⚠️ Sildenafil has two brand names: Viagra (erectile dysfunction) and Revatio (pulmonary arterial hypertension). The doses are different — Revatio is typically 20 mg; Viagra is 25–100 mg.


    > ⚠️ Duloxetine (Cymbalta) is one of the most broadly indicated drugs on the exam. Memorize all five FDA-approved indications — they are common trick questions.


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    Section 4: Counseling Points & Adverse Effects


    Overview

    Patient counseling knowledge is directly tested on the PTCB exam. Focus on the most clinically significant side effects, black box warnings, and drug-food/drug-drug interactions.


    Critical Counseling Points by Drug


    #### Atorvastatin (Lipitor) — Statins

  • • ⚠️ Myopathy/Rhabdomyolysis: Report unexplained muscle pain, weakness, or dark (cola-colored) urine immediately
  • • Avoid grapefruit juice (inhibits CYP3A4 metabolism, raising drug levels)
  • • Take in the evening for most statins (except atorvastatin and rosuvastatin, which can be taken any time)

    • #### Warfarin (Coumadin)

  • • ⚠️ Consistent Vitamin K intake – Do NOT avoid leafy greens; simply keep intake consistent
  • • Dozens of drug interactions — always check before adding new medications
  • • Requires regular INR monitoring; target range 2.0–3.0 for most indications
  • • Signs of bleeding: unusual bruising, blood in urine/stool, prolonged bleeding from cuts

    • #### Lisinopril (ACE Inhibitors)

  • • Dry cough – Most common reason for discontinuation (up to 20% of patients)

    • - Caused by bradykinin accumulation

    - Switch to an ARB (e.g., losartan) if intolerable

  • • ⚠️ Hyperkalemia – Avoid excess potassium supplements or salt substitutes
  • • ⚠️ Angioedema – Rare but life-threatening; swelling of tongue/throat; discontinue immediately

    • #### Levothyroxine (Synthroid)

  • • Take 30–60 minutes before breakfast on an empty stomach
  • • Interactions that reduce absorption: calcium, iron supplements, antacids, sucralfate, coffee
  • • Separate levothyroxine from interacting substances by at least 4 hours
  • • Signs of too much: palpitations, weight loss, sweating, insomnia (hyperthyroid symptoms)

    • #### Fluoroquinolones (e.g., Ciprofloxacin — Cipro)

  • • ⚠️ BLACK BOX WARNING:

    • - Tendinitis and tendon rupture (especially Achilles tendon)

    - Peripheral neuropathy

    - CNS effects (seizures, confusion)

  • • Highest tendon risk: elderly patients, those on corticosteroids, organ transplant recipients
  • • Avoid in children (effects on developing cartilage)
  • • Avoid antacids/calcium/iron within 2 hours (reduces absorption)

    • #### MAOIs + SSRIs — Serotonin Syndrome

  • • ⚠️ NEVER combine MAOIs (e.g., phenelzine) with SSRIs, SNRIs, meperidine, or tramadol
  • • Serotonin Syndrome symptoms: Hyperthermia, agitation, tremor, hyperreflexia, neuromuscular instability
  • • Washout period required: 14 days after stopping an SSRI before starting an MAOI (5 weeks for fluoxetine due to long half-life)

    • #### Metformin (Glucophage)

  • • ⚠️ Lactic acidosis – Rare but serious; risk increases significantly with renal impairment
  • • Contraindicated when eGFR < 30 mL/min
  • • Hold before contrast dye procedures (risk of acute kidney injury)
  • • Common GI side effects (nausea, diarrhea) – take with food to minimize
  • • Does NOT cause hypoglycemia when used alone

    • Key Terms

  • • Rhabdomyolysis – Severe muscle breakdown that releases myoglobin into the bloodstream, potentially causing kidney failure
  • • Bradykinin – Inflammatory peptide that accumulates with ACE inhibitor use, causing cough
  • • Angioedema – Rapid swelling beneath the skin; medical emergency when affecting airway
  • • Lactic acidosis – Dangerous buildup of lactate in the blood; signs include weakness, abdominal pain, difficulty breathing
  • • Serotonin Syndrome – Life-threatening condition from excessive serotonin activity

    • Watch Out For

    > ⚠️ Warfarin counseling trap: Many patients think they must AVOID vitamin K foods completely. The correct advice is to keep intake CONSISTENT — not eliminate it.


    > ⚠️ Fluoroquinolone black box warning includes THREE categories — tendon rupture, peripheral neuropathy, AND CNS effects. Know all three for the exam.


    > ⚠️ Metformin is NOT an insulin secretagogue — it does not cause hypoglycemia on its own. This is a common exam distinction.


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    Section 5: Controlled Substances & Special Handling


    Overview

    The PTCB exam tests your knowledge of DEA scheduling, refill rules, and proper handling of controlled substances. This is a high-priority area with clear-cut regulatory rules.


    DEA Schedule Quick Reference


    | Schedule | Abuse Potential | Medical Use | Refills | Examples |

    |---|---|---|---|---|

    | Schedule I (CI) | Highest | None (in U.S.) | N/A | Heroin, LSD, marijuana (federal) |

    | Schedule II (CII) | High | Yes | 0 refills | Oxycodone, hydrocodone, Ad

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