Controlled Substance Ordering Definition

Controlled Substance Ordering

Definition

DEA Form 222 for Schedule II and CSOS for electronic ordering.

Equipment & Tools

DEA Form 222 for Schedule II and CSOS for electronic ordering. CS ordering procedures tested on PTCB exam.

Related drug class: Beta blockers includes metoprolol, atenolol, propranolol, carvedilol. Mechanism: Block beta-adrenergic receptors, decrease heart rate and contractility.

Documentation

Proper documentation of controlled substance ordering follows facility policies and regulatory requirements. All entries must be dated, timed, and signed. Errors are corrected with a single line through the incorrect entry, initialed and dated. Never erase or cover with correction fluid.

Practical Example

Pharmacy Calculation Example: percentage strength

Formula: w/v: g/100mL, w/w: g/100g, v/v: mL/100mL

Worked example: 2% hydrocortisone cream = 2g HC per 100g cream

Safety Considerations

Safety standards for controlled substance ordering in pharmacy practice are governed by USP 795: Non-sterile compounding: formulation records, BUD assignment, stability testing, equipment calibration

Enforcing agency: USP. Compliance is mandatory and subject to inspection.

Professional Standards

Professional standards governing controlled substance ordering in pharmacy:

Combat Methamphetamine Act (DEA): Pseudoephedrine behind counter, photo ID, logbook, daily limit 3.6g, monthly limit 9g

USP 800 (USP): Hazardous drug handling: C-PEC (containment), deactivation/decontamination, PPE (double chemo gloves, gown), spill management

Why It Matters

CS ordering procedures tested on PTCB exam.

Ready to practice for the PTCB?

Adaptive practice powered by Item Response Theory targets your weak areas. Start with 3 free sessions.

Start free practice →

Frequently Asked Questions

What sig codes are commonly seen with controlled substance ordering prescriptions?▼

For controlled substance ordering: BID = twice daily, OS = left eye, PO = by mouth, SL = sublingual, PC = after meals.

What calculations are involved in controlled substance ordering?▼

For controlled substance ordering: days supply: quantity dispensed / (dose * frequency). Example: #90 tabs, 1 tab TID = 90/(1*3) = 30 days.

What drug interactions should be monitored for controlled substance ordering?▼

For controlled substance ordering: SSRIs (sertraline, fluoxetine, escitalopram, paroxetine): GI upset (nausea); Sexual dysfunction; Serotonin syndrome (with MAOIs); Suicide risk increase in under 25yo (black box). Always check for drug interactions before dispensing.