Classes of medication

revised 2025-09-04 11:30:27 AM EDT

Educational overview for massage therapy students. This chapter is informational only and not medical advice.

---

Most clients take at least one medication. You won’t diagnose or prescribe, but knowing the class of a drug helps you anticipate side effects, tailor positioning and pressure, and recognize red flags that call for caution or referral. On the MBLEx, medication questions emphasize: (1) what a class does, (2) its mechanism in simple terms, and (3) practical safety implications for bodywork. This chapter organizes common medication classes with massage-relevant notes and plain‑language mechanisms.

Sidenote

Vocabulary for drug categories

• Generic vs. brand: The generic name is the active drug; multiple brand names may exist.
• Therapeutic class vs. mechanism: “Antihypertensive” tells you the goal (lower blood pressure); “beta‑blocker” tells you how it works (blocks β‑adrenergic receptors).

Analgesic & anti‑inflammatory classes

Analgesic drugs reduce pain through different mechanisms. Two everyday groups show up on exams and in practice:

• Acetaminophen (paracetamol): pain/fever relief without anti‑inflammatory action. Generally gentle on the stomach; high doses stress the liver.
• Non‑steroidal anti‑inflammatory drugs (NSAIDs): ibuprofen, naproxen, aspirin. By dampening inflammatory enzymes, they reduce pain and swelling. Massage implications: higher risk of bruising or GI irritation—be conservative with deep pressure over bony prominences and check comfort.
• Opioid analgesics (“opiates”): sometimes called narcotic analgesics; very effective for pain but can cause sedation, euphoria, and tolerance. Clients may under‑report pressure discomfort. Hydrotherapy and deep work warrant caution when opioids are on board.

Antitussive drugs reduce the urge to cough—not a contraindication by itself, but sedation can overlap with other meds.

Antiemetic drugs target nausea, vomiting, and motion sickness. For clients with active nausea, choose positions of ease and avoid strong abdominal work.

Antihistamine drugs block histamine during allergic reactions. First‑generation agents (e.g., diphenhydramine) are sedating; newer options are less so. Expect drowsiness in some clients—slower transitions off the table help.

Antifungal drugs treat fungal infections (often skin). Avoid direct work over active lesions; follow standard precautions.

Antibiotic drugs treat bacterial infections (not viruses). Some raise photosensitivity or GI upset; postpone massage if systemic infection is present.

Cardiovascular & hematologic classes

Antihypertensive drugs lower blood pressure via several mechanisms:

• Beta‑blockers: reduce heart rate and blood pressure (blunt exercise HR). Clients may feel fatigued; use gradual position changes.
• Diuretics: increase urine production by the kidneys; can lead to dehydration or cramps—offer water and avoid excessive heat.
• Additional mechanisms (ACE inhibitors, ARBs, calcium‑channel blockers) follow the same massage logic: watch for dizziness when rising.

Anti‑anginal drugs improve blood flow to the heart to ease chest discomfort. Vasodilation can produce dizziness or headache—assist to sitting/standing and check orientation before discharge.

Anti‑arrhythmics restore or stabilize heart rhythm (examples include beta‑blockers, sodium‑ and potassium‑channel blockers, and adenosine). Clients may report palpitations history; respect fatigue and avoid extreme temperature shifts.

Anticoagulant and antiplatelet drugs—often called blood thinners—help prevent blood clots that could cause strokes or heart attacks. A common, testable implication: easy bruising. Use lighter pressure, avoid vigorous percussion, and be cautious over fragile skin or recent injection sites. Examples in this category include clopidogrel and ticlopidine.

Antilipemic / antilipidemic / antihyperlipidemic drugs lower cholesterol and lipids. Some clients on lipid‑lowering therapy report myalgia; communicate and modulate depth where muscles are tender.

Endocrine & metabolic classes

Insulin therapy supports glucose control in diabetes by helping cells absorb sugar/glucose from the blood. To reduce risk of hypoglycemia during a session, confirm recent meals/snacks and avoid prolonged heat.

Metformin is another cornerstone diabetes medication; it helps lower blood sugar by improving insulin efficiency and modulating liver glucose output. Clients may note GI changes; schedule sessions around comfort.

Corticosteroids (prednisone, hydrocortisone topicals, cortisone injections, triamcinolone inhaled) are strong anti‑inflammatory agents that suppress immune activity. Long or frequent use can thin skin and lower tissue resilience—limit shear, keep strokes broad, and avoid aggressive work over delicate areas. Remember that anabolic steroid hormones (e.g., testosterone) are not the same: they support protein synthesis and tissue building and may be administered by cream or intramuscular injection.

Neurologic & psychiatric classes

Anticonvulsant drugs reduce neuronal excitability to prevent seizures; some (gabapentin, pregabalin) are also used for neuropathic pain. Clients may feel dizzy or sleepy—move slowly between positions.

Benzodiazepines enhance GABA signaling, producing anxiolytic, sedative, anticonvulsant, and muscle‑relaxing effects. Expect sedation and potential falls—escort carefully after sessions.

Barbiturates are older CNS depressants with sedative and anticonvulsant uses but higher risk for tolerance and overdose; today they’re less common. The massage takeaway is similar: anticipate drowsiness and protect airway/positioning comfort.

Lithium is a mood stabilizer. A characteristic side effect can be brittle hair, which makes scalp massage undesirable or uncomfortable—ask and adapt. Hydration status also matters for lithium safety, so keep water available.

Dopaminergic drugs treat Parkinson’s symptoms by increasing dopamine signaling or replacing dopamine. You may see improvements in tremor and movement initiation; still, allow rest breaks and avoid rapid changes in head position (balance can be variable).

Muscle relaxants temporarily lower tone to ease spasm or hypertonicity. Because they can blunt pain perception and reduce precise feedback, start with lighter pressure and progress based on client report.

Anti‑infective & antiparasitic classes

Antiparasitic drugs eradicate lice or mites when applied topically and internal parasites when taken orally. Postpone massage until the infestation is fully treated and contagious risk has passed; clean linens meticulously.

Antifungal, antibiotic, and antiviral medications each target a different pathogen family (fungi, bacteria, viruses). Avoid direct contact with active lesions, monitor for skin irritation from topicals, and reschedule if systemic illness is present.

Putting mechanism, effects, and bodywork together

Here are a few examples of how to translate what you have learned about a class of medication into adaptations for your massage plan. (Mechanism → Expected effects → Massage plan.)

• Vasodilators/anti‑anginal/antihypertensives: Expect dizziness or orthostatic drops. Plan: assist transitions, keep a hand on the client as they sit up, and give a minute before standing.
• Anticoagulant/antiplatelet/NSAID use: Expect easy bruising. Plan: avoid deep or percussive techniques over bony areas; document any unexpected bruises and inform the client.
• Sedating meds (opioids, benzodiazepines, first‑gen antihistamines, some muscle relaxants, barbiturates): Expect sleepiness, slowed reaction, reduced pain reporting. Plan: slower pacing, careful draping and transfers, clear post‑session safety cues.
• Corticosteroids (chronic use): Expect skin fragility and slower tissue recovery. Plan: broad contact, minimal shear, caution with cupping/scraping tools.
• Diuretics/diabetes meds: Expect fluid and glucose shifts. Plan: avoid excessive heat, have water available, and check that the client has eaten if prone to lows.

Class-by-class quick reference with MBLEx hints

• Analgesic: reduces pain; choose pressure by feedback.
• NSAIDs: anti‑inflammatory pain relievers; bruising risk—go lighter over bony areas.
• Opioid analgesics (“opiates”/“narcotics”): sedation/euphoria; caution with deep work and hydrotherapy.
• Antitussive: suppresses cough; watch for sedation overlap.
• Antiemetic: for nausea/motion sickness; select positions of ease.
• Antihistamine: allergy control; 1st‑gen may sedate.
• Antifungal: treats fungal infections; avoid active lesions.
• Antibiotic: targets bacteria (not viruses); postpone if febrile/systemically ill.
• Antihypertensive: lowers blood pressure; slow transitions.
• Beta‑blockers: lower heart rate/BP; HR response to exertion is blunted.
• Diuretic: increases urine output; offer water; avoid excessive heat.
• Anti‑anginal: improves cardiac oxygenation; expect dizziness.
• Anti‑arrhythmic: manages rhythm; avoid extremes and confirm comfort.
• Anticoagulant / antiplatelet (“blood thinners”): easy bruising—lighten pressure.
• Antilipemic / antilipidemic / antihyperlipidemic: lower cholesterol/lipids; ask about muscle soreness.
• Insulin / Metformin: glucose control; plan around meals, watch for lows.
• Corticosteroids: immune‑suppressing anti‑inflammatories; protect fragile skin.
• Anabolic steroids (e.g., testosterone): tissue‑building, not anti‑inflammatory; note injection/patch sites.
• Anticonvulsant: prevents seizures; expect dizziness/somnolence.
• Benzodiazepines: enhance GABA; sedation/falls risk.
• Barbiturates: CNS depressants; similar sedation precautions.
• Dopaminergic: Parkinson’s support; allow rest breaks.
• Muscle relaxants: lower tone; feedback may be dulled.