Health Profile
Logging Medication Doses with the Barcode Scanner
Learn how to scan GS1 DataMatrix barcodes on medication packaging to log doses with complete traceability.
For certain medications, you can log a specific dose by scanning the GS1 DataMatrix barcode on the packaging. This is a highly accurate way to track compliance and capture important details like lot number and expiration date.
What is a GS1 DataMatrix Barcode?
Visual Identification
What it looks like:
- Square, pixelated barcode
- Usually black and white
- Looks like a QR code but denser
- Contains much more information than traditional barcodes
Where to find it:
- On medication boxes
- On vials and bottles
- On blister packs
- On prefilled syringes or pens
What Information It Contains
Data encoded:
- GTIN (Global Trade Item Number): Product identifier
- Lot Number: Manufacturing batch
- Expiration Date: When medication expires
- Serial Number: Unique unit identifier (sometimes)
Why this matters:
- Complete traceability
- Product authenticity verification
- Recall management
- Precise dose tracking
- Safety and compliance
How to Log a Dose by Scanning
Step 1: Open the camera by tapping the Camera Button (📷) on the Home tab
Step 2: Point the camera at the DataMatrix code on your medication's box or vial
Step 3: Hold steady for a moment while the app recognizes the code
Step 4: The app automatically opens the "Log Medication" screen
The Log Medication Screen
Scanned Information Display
What you'll see:
GTIN:
- Product identification number
- Verifies exact medication
- Links to product database
Lot Number:
- Manufacturing batch code
- Important for recalls
- Quality tracking
Expiration Date:
- When medication expires
- Safety verification
- Helps track inventory
Selecting Your Medication
Step 1: From the dropdown menu, select the corresponding medication from your list
Why this step:
- Connects scan to your profile
- Maintains your medication history
- Enables proper tracking
- Links to reminders and schedule
If medication not in list:
- Add it first to your profile
- Then return to scan and log
- Or skip and log manually
Adjusting Details
Date & Time:
- Defaults to current time
- Adjust if logging past dose
- Important for accurate tracking
Dose Amount:
- Confirm dosage
- Adjust if different from usual
- Note any changes
Notes (Optional):
- Why dose was different
- How you felt
- Any side effects
- Other relevant context
Injection Location (if applicable):
- For injectable medications
- Rotate injection sites
- Track for pattern management
- Examples: left arm, right thigh, abdomen
Saving the Log
Step 1: Review all information for accuracy
Step 2: Tap "Save Log"
Result:
- Dose recorded with timestamp
- Linked to medication profile
- Scanned data preserved
- Available in dose history
Viewing Dose History
Step 1: Go to Profile > Medications
Step 2: Tap on the medication
Step 3: Scroll to "Log History" section
What you'll see:
- All recorded doses
- Date and time taken
- Scanned information (if available)
- Method of logging
- Any notes added
Benefits of Barcode Scanning
Accuracy
Eliminates errors:
- No manual typing required
- Exact product identification
- Correct lot and expiration captured
- Reduces logging mistakes
Traceability
Complete record keeping:
- Which specific unit you took
- When it expires
- Manufacturing batch
- Recall tracking possible
Compliance Documentation
Proof of adherence:
- Timestamped dose records
- Verified product information
- Insurance requirements
- Clinical trial participation
- High-value medication tracking
Safety
Important for:
- Medication recalls
- Adverse event reporting
- Product authentication
- Counterfeit detection
Common Use Cases
High-Value Medications
Ideal for:
- Biologics and biosimilars
- Specialty pharmaceuticals
- Injectable medications
- Expensive treatments
- Clinical trial medications
Why it's important:
- Cost accountability
- Insurance documentation
- Safety monitoring
- Efficacy tracking
Chronic Condition Management
Perfect for:
- Daily insulin injections
- Biologic injections
- Autoimmune treatments
- Long-term therapies
Benefits:
- Pattern tracking
- Dose verification
- Lot tracking for reactions
- Comprehensive records
Medications Requiring Documentation
Required for:
- Clinical trials
- Insurance prior authorization
- Medicare Part B drugs
- Specialty pharmacy programs
What it provides:
- Proof of administration
- Date and time verification
- Product authentication
- Compliance evidence
Troubleshooting
Barcode Not Scanning
Possible causes:
- Poor lighting
- Camera not focused
- Barcode damaged or dirty
- Wrong type of barcode
Solutions:
- Improve lighting conditions
- Clean the barcode
- Hold camera steady
- Try different angle
- Ensure it's a DataMatrix code
- Manual entry if barcode unusable
Wrong Medication Suggested
Why it happens:
- GTIN not in database
- Multiple products share code
- Product information outdated
How to fix:
- Select correct medication manually from list
- Contact support to update database
- Log manually if persistent issue
Cannot Find Medication in List
Solution:
Step 1: Cancel the scan
Step 2: Go to Profile > Medications
Step 3: Add the medication manually
Step 4: Return to scan and try again
Step 5: Now select from dropdown
Limitations
Not All Medications Have DataMatrix Codes
May not be available on:
- Older medication packaging
- Generic prescriptions
- Some over-the-counter drugs
- Non-US medications
- Compounded medications
Alternative:
- Log doses manually
- Use reminders for tracking
- Traditional barcode may not work
- Standard UPC codes not supported
Scanning vs. Manual Logging
When to scan:
- DataMatrix code available
- High-value medication
- Traceability important
- Clinical trial participation
When to log manually:
- No barcode present
- Barcode won't scan
- Faster for routine medications
- Retrospective logging
Privacy and Data Security
What Gets Stored
Your log includes:
- Date and time
- Scanned product information
- Lot number and expiration
- Notes you add
- Selected medication
Not stored:
- No images of barcode
- No camera footage
- Only extracted data
- Encrypted storage
Who Can See This Data
Private by default:
- Only you within the app
- Not shared automatically
- You control exports
- Optional sharing only
Sharing options:
- Export for healthcare providers
- Insurance documentation
- Clinical trial reporting
- Personal records
Best Practices
Consistent Scanning
For best results:
- Scan every dose
- Don't skip for convenience
- Build it into routine
- Complete record keeping
Verify Information
Always check:
- Correct medication selected
- Date and time accurate
- Expiration date reasonable
- All details correct before saving
Keep Packaging
Until fully used:
- Retain box with barcode
- Needed for each dose if injectable
- Keep until medication finished
- Dispose safely after
📊 Tracking Tip
For injectable medications that require rotation of injection sites, use the notes field to document where each dose was administered. This helps ensure proper rotation and prevents site irritation.
🔒 Safety Note
If you receive a medication recall notice, check your dose history to see if you've taken any doses from the affected lot number. The lot information from your scanned doses makes it easy to verify if you're affected.