Lignocaine Different forms

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I now have comprehensive information from multiple authoritative textbooks. Here is the full answer:

Lignocaine (Lidocaine) - Different Forms

Lignocaine (also called lidocaine) is an amide-type local anesthetic and Class Ib antiarrhythmic. It is available in a remarkably wide range of formulations, each designed for a specific clinical purpose.

1. Injectable Solutions (Parenteral)

These are the most widely used forms.

Concentration	Strength	Use
0.5%	5 mg/mL	Infiltration, regional blocks
1%	10 mg/mL	Infiltration, nerve blocks, epidural
1.5%	15 mg/mL	Epidural, nerve blocks
2%	20 mg/mL	Epidural, dental, nerve blocks
4%	40 mg/mL	Topical (NOT for injection)
5%	50 mg/mL	Spinal (heavy / hyperbaric)

With Epinephrine (adrenaline)

1:100,000 epi: 1%, 2% lignocaine - prolongs action, reduces absorption
1:200,000 epi: 0.5%, 1%, 1.5%, 2% lignocaine - wider use including digital blocks (with caution)

Maximum dose without epi: 4.5 mg/kg (up to 300 mg); with epi: 7 mg/kg (up to 500 mg)

Harriet Lane Handbook, p. 1212; Pye's Surgical Handicraft

2. IV Infusion (Antiarrhythmic Use)

Pre-mixed in D5W for cardiac use (Class Ib antiarrhythmic - suppresses ventricular ectopy):

0.4% (4 mg/mL) - in 250 mL or 500 mL bags
0.8% (8 mg/mL) - in 250 mL bags
IV bolus: 1-1.5 mg/kg; maintenance infusion: 1-4 mg/min
Used for hemodynamically stable VT, post-ROSC after VF
Tintinalli's Emergency Medicine

3. Topical Forms

Ointment

4% (50 g), 5% (30, 50 g)
Applied to skin or mucous membranes

Cream (Topical)

3% (30, 85 g)
4% - LMX-4 [OTC] (5-45 g) - intact skin anesthesia
5% - LMX-5 [OTC] (15-30 g) - intact skin / anorectal
Harriet Lane Handbook, p. 1212

Rectal Cream

5% (15-30 g) - for anorectal pain; contains benzyl alcohol

Gel (External)

2%, 3%, 4%, 5% (5-113 g sizes)
Applied to mucous membranes, urethral instillation, wound surfaces, nasogastric tube lubrication
May contain benzyl alcohol or EDTA

Lotion

3% (118, 177 mL), 4% (88 mL)

Solution (External/Topical)

2% oral solution (15-100 mL) - for mouth and throat (e.g., before endoscopy, teething)
4% oral solution (4 mL)
4% external solution (50 mL) - may contain parabens

Aerosol Spray

4% (104 mL) - used for topical anesthesia of the oropharynx, airway, and mucous membranes
Also available as 10% pump spray (e.g., Xylocaine 10%) for rapid mucosal anesthesia during intubation

4. Transdermal Patch

Product	Strength	Notes
Lidoderm	5% (700 mg/patch)	For postherpetic neuralgia (PHN); 1-3 patches, 12h on/12h off
Gen7T Plus	3.5%	May contain menthol
OTC patches	4%	May contain menthol, capsaicin, methyl salicylate

Primary use: neuropathic pain (PHN), localized musculoskeletal pain
Morgan & Mikhail's Clinical Anesthesiology, p. 2036; Goodman & Gilman's

5. Combination Products

EMLA Cream (Eutectic Mixture of Local Anesthetics)

Lidocaine 2.5% + Prilocaine 2.5%
Forms a eutectic mixture with a lower melting point than either component alone, allowing penetration of intact keratinized skin
Applied under occlusive dressing 45-60 min before venipuncture; widely used in pediatrics
Katzung's Basic and Clinical Pharmacology; Miller's Anesthesia

Lidocaine + Tetracaine / Triple-mix gels

Compounded topical preparations (e.g., 10% lidocaine + 10% prilocaine + 4% tetracaine "Profound") used for deep mucosal anesthesia in emergency procedures

6. Summary: Techniques by Form

Route / Technique	Concentration Used
Topical (skin/mucosa)	2-5%
Local infiltration	0.5-1%
Peripheral nerve block	1-2%
Epidural	1-2%
Spinal (intrathecal)	5% (hyperbaric)
IV regional (Bier block)	0.5%
IV antiarrhythmic	0.4-0.8% infusion
Transdermal patch	3.5-5%

Morgan & Mikhail's Clinical Anesthesiology, Table 16-3, p. 492

Key Notes

Brand names: Xylocaine, Lidoderm, LMX-4, LMX-5, Gen7T Plus, Lidocaine Pain Relief, Xylotox, Lidothesin
Duration: Medium (intermediate) - generally 1-2 hours for nerve blocks, extendable with epinephrine
Metabolism: Hepatic (CYP enzymes) - reduce dose/infusion rate by 50% in liver disease or patients >70 years
Toxicity (dose-dependent, NOT allergic): perioral tingling, tinnitus, dizziness, drowsiness, seizures, cardiac depression (widening QRS, hypotension)
Lignocaine causes vasodilation at the injection site (unlike mepivacaine which causes mild vasoconstriction), hence why it has a shorter duration than mepivacaine when used without epinephrine
Pye's Surgical Handicraft; Katzung's Basic and Clinical Pharmacology

Make Pdf

Reading File

Running Command

mkdir -p /tmp/workspace/lignocaine && ls /tmp/workspace/lignocaine/

Writing File

~/lignocaine/generate_pdf.py

from reportlab.lib.pagesizes import A4
from reportlab.lib import colors
from reportlab.lib.styles import getSampleStyleSheet, ParagraphStyle
from reportlab.lib.units import cm
from reportlab.platypus import (
    SimpleDocTemplate, Paragraph, Spacer, Table, TableStyle,
    HRFlowable, KeepTogether
)
from reportlab.lib.enums import TA_CENTER, TA_LEFT
from reportlab.platypus import PageBreak

OUTPUT = "/tmp/workspace/lignocaine/Lignocaine_Different_Forms.pdf"

doc = SimpleDocTemplate(
    OUTPUT,
    pagesize=A4,
    rightMargin=2*cm, leftMargin=2*cm,
    topMargin=2.5*cm, bottomMargin=2.5*cm
)

styles = getSampleStyleSheet()

# Custom styles
BLUE_DARK  = colors.HexColor("#1a3a5c")
BLUE_MID   = colors.HexColor("#1e6091")
BLUE_LIGHT = colors.HexColor("#d6eaf8")
BLUE_PALE  = colors.HexColor("#eaf4fb")
ORANGE     = colors.HexColor("#e67e22")
WHITE      = colors.white
GREY_TEXT  = colors.HexColor("#333333")
TABLE_HEAD = colors.HexColor("#1e6091")

title_style = ParagraphStyle(
    "TitleStyle", parent=styles["Title"],
    fontSize=22, textColor=WHITE, spaceAfter=6,
    alignment=TA_CENTER, fontName="Helvetica-Bold"
)
subtitle_style = ParagraphStyle(
    "SubtitleStyle", parent=styles["Normal"],
    fontSize=11, textColor=colors.HexColor("#d6eaf8"),
    spaceAfter=4, alignment=TA_CENTER, fontName="Helvetica"
)
h1_style = ParagraphStyle(
    "H1", parent=styles["Heading1"],
    fontSize=13, textColor=WHITE, spaceBefore=10, spaceAfter=4,
    fontName="Helvetica-Bold", backColor=BLUE_MID,
    borderPad=(4, 6, 4, 6), leading=18
)
h2_style = ParagraphStyle(
    "H2", parent=styles["Heading2"],
    fontSize=11, textColor=BLUE_DARK, spaceBefore=8, spaceAfter=3,
    fontName="Helvetica-Bold"
)
body_style = ParagraphStyle(
    "Body", parent=styles["Normal"],
    fontSize=9.5, textColor=GREY_TEXT, spaceAfter=4,
    fontName="Helvetica", leading=14
)
bullet_style = ParagraphStyle(
    "Bullet", parent=styles["Normal"],
    fontSize=9.5, textColor=GREY_TEXT, spaceAfter=3,
    fontName="Helvetica", leftIndent=14, leading=14,
    bulletIndent=4
)
note_style = ParagraphStyle(
    "Note", parent=styles["Normal"],
    fontSize=8.5, textColor=colors.HexColor("#555555"),
    spaceAfter=3, fontName="Helvetica-Oblique", leading=12,
    leftIndent=10
)
source_style = ParagraphStyle(
    "Source", parent=styles["Normal"],
    fontSize=7.5, textColor=colors.HexColor("#777777"),
    spaceAfter=2, fontName="Helvetica-Oblique"
)

def section_header(text):
    return [
        Spacer(1, 0.3*cm),
        Table([[Paragraph(text, h1_style)]],
              colWidths=[17*cm],
              style=TableStyle([
                  ("BACKGROUND", (0,0), (-1,-1), BLUE_MID),
                  ("TOPPADDING", (0,0), (-1,-1), 5),
                  ("BOTTOMPADDING", (0,0), (-1,-1), 5),
                  ("LEFTPADDING", (0,0), (-1,-1), 8),
                  ("RIGHTPADDING", (0,0), (-1,-1), 8),
                  ("ROUNDEDCORNERS", [4]),
              ])),
        Spacer(1, 0.2*cm),
    ]

def make_table(header_row, data_rows, col_widths=None):
    col_widths = col_widths or []
    table_data = [header_row] + data_rows
    t = Table(table_data, colWidths=col_widths if col_widths else None, hAlign="LEFT")
    style = TableStyle([
        ("BACKGROUND",    (0,0), (-1,0),  TABLE_HEAD),
        ("TEXTCOLOR",     (0,0), (-1,0),  WHITE),
        ("FONTNAME",      (0,0), (-1,0),  "Helvetica-Bold"),
        ("FONTSIZE",      (0,0), (-1,0),  9),
        ("ALIGN",         (0,0), (-1,-1), "LEFT"),
        ("VALIGN",        (0,0), (-1,-1), "MIDDLE"),
        ("FONTNAME",      (0,1), (-1,-1), "Helvetica"),
        ("FONTSIZE",      (0,1), (-1,-1), 9),
        ("ROWBACKGROUNDS",(0,1), (-1,-1), [WHITE, BLUE_PALE]),
        ("GRID",          (0,0), (-1,-1), 0.4, colors.HexColor("#aaccee")),
        ("TOPPADDING",    (0,0), (-1,-1), 4),
        ("BOTTOMPADDING", (0,0), (-1,-1), 4),
        ("LEFTPADDING",   (0,0), (-1,-1), 6),
        ("RIGHTPADDING",  (0,0), (-1,-1), 6),
        ("ROWBACKGROUNDS",(0,0), (-1,-1), [None]),
    ])
    # Re-apply alternating row colors properly
    t.setStyle(TableStyle([
        ("BACKGROUND",    (0,0), (-1,0),  TABLE_HEAD),
        ("TEXTCOLOR",     (0,0), (-1,0),  WHITE),
        ("FONTNAME",      (0,0), (-1,0),  "Helvetica-Bold"),
        ("FONTSIZE",      (0,0), (-1,0),  9),
        ("ALIGN",         (0,0), (-1,-1), "LEFT"),
        ("VALIGN",        (0,0), (-1,-1), "MIDDLE"),
        ("FONTNAME",      (0,1), (-1,-1), "Helvetica"),
        ("FONTSIZE",      (0,1), (-1,-1), 9),
        ("GRID",          (0,0), (-1,-1), 0.4, colors.HexColor("#aaccee")),
        ("TOPPADDING",    (0,0), (-1,-1), 4),
        ("BOTTOMPADDING", (0,0), (-1,-1), 4),
        ("LEFTPADDING",   (0,0), (-1,-1), 6),
        ("RIGHTPADDING",  (0,0), (-1,-1), 6),
    ]))
    for i in range(1, len(table_data)):
        bg = BLUE_PALE if i % 2 == 0 else WHITE
        t.setStyle(TableStyle([("BACKGROUND", (0,i), (-1,i), bg)]))
    return t

# ─── Build content ───────────────────────────────────────────────────────────
story = []

# ── Cover Banner ──
banner = Table(
    [[Paragraph("LIGNOCAINE (LIDOCAINE)", title_style)],
     [Paragraph("Different Forms &amp; Formulations — Clinical Reference", subtitle_style)]],
    colWidths=[17*cm],
    style=TableStyle([
        ("BACKGROUND",     (0,0), (-1,-1), BLUE_DARK),
        ("TOPPADDING",     (0,0), (-1,-1), 14),
        ("BOTTOMPADDING",  (0,0), (-1,-1), 14),
        ("LEFTPADDING",    (0,0), (-1,-1), 12),
        ("RIGHTPADDING",   (0,0), (-1,-1), 12),
        ("ROUNDEDCORNERS", [6]),
    ])
)
story.append(banner)
story.append(Spacer(1, 0.4*cm))

# Classification box
class_box = Table(
    [[Paragraph(
        "<b>Class:</b> Amide-type Local Anesthetic &amp; Class Ib Antiarrhythmic  |  "
        "<b>Brands:</b> Xylocaine, Lidoderm, LMX-4, LMX-5, Xylotox, EMLA  |  "
        "<b>Duration:</b> Intermediate (medium)",
        ParagraphStyle("ClassBox", parent=styles["Normal"], fontSize=9,
                       textColor=BLUE_DARK, fontName="Helvetica", leading=14)
    )]],
    colWidths=[17*cm],
    style=TableStyle([
        ("BACKGROUND",    (0,0), (-1,-1), BLUE_LIGHT),
        ("BOX",           (0,0), (-1,-1), 1, BLUE_MID),
        ("TOPPADDING",    (0,0), (-1,-1), 6),
        ("BOTTOMPADDING", (0,0), (-1,-1), 6),
        ("LEFTPADDING",   (0,0), (-1,-1), 10),
        ("RIGHTPADDING",  (0,0), (-1,-1), 10),
    ])
)
story.append(class_box)
story.append(Spacer(1, 0.3*cm))

# ── 1. Injectable Solutions ──
story += section_header("1.  Injectable Solutions (Parenteral)")
story.append(Paragraph(
    "The most commonly used forms. Plain solutions or combined with epinephrine (adrenaline) to "
    "prolong action and reduce systemic absorption.",
    body_style
))
story.append(Spacer(1, 0.15*cm))

inj_table = make_table(
    ["Concentration", "Strength", "Primary Use"],
    [
        ["0.5%", "5 mg/mL",  "Infiltration, IV regional (Bier block)"],
        ["1%",   "10 mg/mL", "Infiltration, peripheral nerve blocks, epidural"],
        ["1.5%", "15 mg/mL", "Epidural anesthesia, nerve blocks"],
        ["2%",   "20 mg/mL", "Epidural, dental blocks, nerve blocks"],
        ["4%",   "40 mg/mL", "Topical use ONLY — NOT for injection"],
        ["5%",   "50 mg/mL", "Spinal (intrathecal) — hyperbaric preparation"],
    ],
    col_widths=[3.5*cm, 3.5*cm, 10*cm]
)
story.append(inj_table)
story.append(Spacer(1, 0.2*cm))

story.append(Paragraph("<b>With Epinephrine:</b>", h2_style))
epi_table = make_table(
    ["Preparation", "Lidocaine Concentrations Available"],
    [
        ["With 1:100,000 epinephrine",  "1%, 2%"],
        ["With 1:200,000 epinephrine",  "0.5%, 1%, 1.5%, 2%"],
    ],
    col_widths=[7*cm, 10*cm]
)
story.append(epi_table)
story.append(Spacer(1, 0.15*cm))

dose_box = Table(
    [[Paragraph(
        "<b>Max Dose (plain):</b> 4.5 mg/kg (up to 300 mg) — do not repeat within 2 hr<br/>"
        "<b>Max Dose (with epi):</b> 7 mg/kg (up to 500 mg) — do not repeat within 2 hr",
        ParagraphStyle("DoseBox", parent=styles["Normal"], fontSize=9,
                       textColor=colors.HexColor("#7b241c"), fontName="Helvetica", leading=15)
    )]],
    colWidths=[17*cm],
    style=TableStyle([
        ("BACKGROUND",    (0,0), (-1,-1), colors.HexColor("#fdf2f2")),
        ("BOX",           (0,0), (-1,-1), 1, ORANGE),
        ("TOPPADDING",    (0,0), (-1,-1), 6),
        ("BOTTOMPADDING", (0,0), (-1,-1), 6),
        ("LEFTPADDING",   (0,0), (-1,-1), 10),
        ("RIGHTPADDING",  (0,0), (-1,-1), 10),
    ])
)
story.append(dose_box)
story.append(Paragraph("Source: Harriet Lane Handbook; Pye's Surgical Handicraft", source_style))

# ── 2. IV Infusion (Antiarrhythmic) ──
story += section_header("2.  IV Infusion — Antiarrhythmic Use (Class Ib)")
story.append(Paragraph(
    "Pre-mixed in 5% Dextrose (D5W) for cardiac use. Reduces automaticity and suppresses "
    "ventricular ectopy. Used for hemodynamically stable VT and post-ROSC after VF/pulseless VT.",
    body_style
))
story.append(Spacer(1, 0.15*cm))

iv_table = make_table(
    ["Preparation", "Concentration", "Volume"],
    [
        ["IV Infusion in D5W", "0.4% (4 mg/mL)",  "250 mL, 500 mL bags"],
        ["IV Infusion in D5W", "0.8% (8 mg/mL)",  "250 mL bags"],
    ],
    col_widths=[5.5*cm, 5.5*cm, 6*cm]
)
story.append(iv_table)
story.append(Spacer(1, 0.15*cm))

for txt in [
    "• <b>IV Bolus:</b> 1–1.5 mg/kg; repeat bolus 0.5 mg/kg if rhythm persists",
    "• <b>Maintenance infusion:</b> 1–4 mg/min after ROSC",
    "• Reduce infusion by 50% in patients with liver disease or age &gt;70 years",
    "• Routine post-ROSC use is no longer recommended per 2015 guidelines; may be considered on a case-by-case basis",
]:
    story.append(Paragraph(txt, bullet_style))
story.append(Paragraph("Source: Tintinalli's Emergency Medicine", source_style))

# ── 3. Topical Forms ──
story += section_header("3.  Topical Forms")

topical_table = make_table(
    ["Form", "Concentration(s)", "Size / Notes"],
    [
        ["Ointment",         "4%, 5%",             "50 g / 30–50 g"],
        ["Cream (topical)",  "3%, 4% (LMX-4 OTC), 5% (LMX-5 OTC)", "5–45 g; intact skin anesthesia"],
        ["Rectal cream",     "5%",                 "15–30 g; contains benzyl alcohol; anorectal pain"],
        ["Gel (external)",   "2%, 3%, 4%, 5%",     "5–113 g; urethral instillation, NG tube lubrication, mucosa"],
        ["Lotion",           "3%, 4%",             "88–177 mL"],
        ["Solution (oral)",  "2%, 4%",             "15–100 mL; mouth/throat, endoscopy prep, teething"],
        ["Solution (ext.)",  "4%",                 "50 mL; may contain parabens"],
        ["Aerosol Spray",    "4% / 10%",           "104 mL; oropharynx, airway, pre-intubation"],
    ],
    col_widths=[3.5*cm, 5.5*cm, 8*cm]
)
story.append(topical_table)
story.append(Paragraph("Source: Harriet Lane Handbook, p. 1212", source_style))

# ── 4. Transdermal Patch ──
story += section_header("4.  Transdermal Patch")
story.append(Paragraph(
    "Used primarily for neuropathic pain, especially postherpetic neuralgia (PHN). "
    "Each patch delivers lidocaine through intact skin over 12 hours.",
    body_style
))
story.append(Spacer(1, 0.15*cm))

patch_table = make_table(
    ["Product", "Strength", "Additional Ingredients", "Notes"],
    [
        ["Lidoderm",              "5% (700 mg/patch)", "—",                                     "Rx; 1–3 patches, 12h on/12h off; PHN"],
        ["Gen7T Plus",            "3.5%",              "May contain menthol",                   "Rx; packs of 5/10/15"],
        ["OTC Lidocaine patches", "4%",                "May contain menthol, capsaicin, methyl salicylate", "OTC; musculoskeletal pain"],
    ],
    col_widths=[3.8*cm, 3.2*cm, 5.5*cm, 4.5*cm]
)
story.append(patch_table)
story.append(Paragraph("Source: Morgan & Mikhail's Clinical Anesthesiology, p. 2036; Goodman & Gilman's", source_style))

# ── 5. Combination Products ──
story += section_header("5.  Combination Products")

story.append(Paragraph("<b>EMLA Cream (Eutectic Mixture of Local Anesthetics)</b>", h2_style))
story.append(Paragraph(
    "Contains <b>Lidocaine 2.5% + Prilocaine 2.5%</b>. The two agents form a eutectic mixture "
    "with a lower melting point than either component alone, allowing penetration of intact "
    "keratinized skin. Applied under an occlusive dressing 45–60 minutes before venipuncture. "
    "Widely used in pediatrics.",
    body_style
))
story.append(Spacer(1, 0.1*cm))
story.append(Paragraph("<b>Triple-mix / Compounded topical gels</b>", h2_style))
story.append(Paragraph(
    "e.g., Profound: 10% Lidocaine + 10% Prilocaine + 4% Tetracaine. Used for deep mucosal "
    "anesthesia in emergency procedures (e.g., nasopharyngeal, wound care).",
    body_style
))
story.append(Paragraph("Source: Katzung's Basic and Clinical Pharmacology; Miller's Anesthesia", source_style))

# ── 6. Techniques by Form ──
story += section_header("6.  Summary: Technique vs. Concentration")

tech_table = make_table(
    ["Route / Technique", "Concentration Used", "Max Dose"],
    [
        ["Topical (skin/mucosa)",        "2–5%",   "4.5 mg/kg (up to 300 mg)"],
        ["Local infiltration",           "0.5–1%", "4.5 mg/kg plain; 7 mg/kg with epi"],
        ["Peripheral nerve block",       "1–2%",   "4.5 mg/kg plain; 7 mg/kg with epi"],
        ["Epidural anesthesia",          "1–2%",   "Varies with volume used"],
        ["Spinal (intrathecal)",         "5%",     "Hyperbaric preparation; ~75–100 mg"],
        ["IV regional (Bier block)",     "0.5%",   "3 mg/kg"],
        ["IV antiarrhythmic (infusion)", "0.4–0.8% (in D5W)", "Bolus 1–1.5 mg/kg; infusion 1–4 mg/min"],
        ["Transdermal patch",            "3.5–5%", "Max 3 patches simultaneously (12h on/off)"],
    ],
    col_widths=[5.5*cm, 5*cm, 6.5*cm]
)
story.append(tech_table)
story.append(Paragraph("Source: Morgan & Mikhail's Clinical Anesthesiology, Table 16-3, p. 492", source_style))

# ── 7. Key Clinical Notes ──
story += section_header("7.  Key Clinical Notes")

notes = [
    ("<b>Mechanism:</b>", "Blocks voltage-gated sodium (Na⁺) channels → prevents action potential propagation."),
    ("<b>Class:</b>", "Amide-type local anesthetic; also Class Ib antiarrhythmic."),
    ("<b>Onset:</b>", "Rapid. Lignocaine diffuses readily through tissues."),
    ("<b>Duration:</b>", "Intermediate (medium) — 1–2 hours for nerve blocks; prolonged with epinephrine."),
    ("<b>Metabolism:</b>", "Hepatic (CYP enzymes). Reduce dose/infusion by 50% in liver disease or age >70 years."),
    ("<b>Vasoactivity:</b>", "Causes vasodilation at injection site (unlike mepivacaine which causes mild vasoconstriction) → shorter duration than mepivacaine without epinephrine."),
    ("<b>Toxicity:</b>", "Dose-dependent, NOT allergic. Signs: perioral tingling → tinnitus → dizziness → drowsiness → seizures → cardiac depression (wide QRS, hypotension). Risk increases above 3 mg/kg bolus."),
    ("<b>Allergy:</b>", "True allergy is extremely rare. Most 'reactions' are vasovagal or epinephrine-mediated or due to overdose."),
    ("<b>Contraindications:</b>", "Severe SA, AV, or intraventricular block (without pacemaker); hypersensitivity to amide-type local anesthetics."),
]

notes_data = [[Paragraph(k, ParagraphStyle("NoteKey", parent=styles["Normal"],
                fontSize=9, fontName="Helvetica-Bold", textColor=BLUE_DARK, leading=14)),
               Paragraph(v, ParagraphStyle("NoteVal", parent=styles["Normal"],
                fontSize=9, fontName="Helvetica", textColor=GREY_TEXT, leading=14))]
              for k, v in notes]

notes_table = Table(notes_data, colWidths=[4.5*cm, 12.5*cm])
notes_table.setStyle(TableStyle([
    ("VALIGN",        (0,0), (-1,-1), "TOP"),
    ("TOPPADDING",    (0,0), (-1,-1), 4),
    ("BOTTOMPADDING", (0,0), (-1,-1), 4),
    ("LEFTPADDING",   (0,0), (-1,-1), 4),
    ("LINEBELOW",     (0,0), (-1,-2), 0.3, colors.HexColor("#ccddee")),
]))
for i in range(0, len(notes_data), 2):
    notes_table.setStyle(TableStyle([("BACKGROUND", (0,i), (-1,i), BLUE_PALE)]))

story.append(notes_table)
story.append(Spacer(1, 0.3*cm))

# Footer note
story.append(HRFlowable(width="100%", thickness=0.5, color=BLUE_MID))
story.append(Spacer(1, 0.1*cm))
story.append(Paragraph(
    "References: Harriet Lane Handbook (23rd ed.) · Tintinalli's Emergency Medicine · "
    "Morgan & Mikhail's Clinical Anesthesiology (7th ed.) · Goodman & Gilman's Pharmacological Basis "
    "of Therapeutics · Katzung's Basic & Clinical Pharmacology (16th ed.) · Miller's Anesthesia (10th ed.) · "
    "Pye's Surgical Handicraft (22nd ed.)",
    ParagraphStyle("Footer", parent=styles["Normal"], fontSize=7.5,
                   textColor=colors.HexColor("#666666"), fontName="Helvetica-Oblique", leading=11)
))

# ─── Build PDF ───────────────────────────────────────────────────────────────
doc.build(story)
print("PDF created:", OUTPUT)

Running Command

python /tmp/workspace/lignocaine/generate_pdf.py

Your PDF is ready! Here's the download link:

Lignocaine Different Forms

PDF Document · PDF

The PDF includes all 7 sections in a clean, colour-coded clinical reference layout:

Injectable Solutions - concentrations (0.5%–5%), plain and with epinephrine, max doses
IV Infusion (Antiarrhythmic) - D5W pre-mix concentrations and dosing protocol
Topical Forms - ointment, cream, gel, lotion, solution, spray with sizes
Transdermal Patch - Lidoderm, Gen7T Plus, OTC patches
Combination Products - EMLA cream, triple-mix gels
Techniques vs. Concentration table - quick-reference by route
Key Clinical Notes - mechanism, toxicity, metabolism, contraindications

Sources cited from 7 major textbooks at the bottom.

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