%\documentclass[tikz, border=10pt]{standalone}
%\usepackage{luatexja} % 日本語表示用
%\usetikzlibrary{matrix}
\begin{tikzpicture}[
line width=0.5pt,
font=\large,
% セルのスタイル定義
cell/.style={
draw,
minimum height=2.2cm,
anchor=center,
align=center,
inner sep=5pt
}
]
% --- 表のヘッダー ---
% 座標 (x, y)
% \node[cell, width=1cm] at (0, 0) {};
\node[cell, minimum width=1cm, minimum height=1cm] at (0, 0.6) {};
\node[cell, minimum width=4.5cm, minimum height=1cm] at (2.75, 0.6) {A 群};
\node[cell, minimum width=9cm, minimum height=1cm] at (9.5, 0.6) {B 群};
% --- 行1 ---
\node[cell, minimum width=1cm] at (0, -1) {\sffamily\bfseries 1};
\node[cell, minimum width=4.5cm] at (2.75, -1) {分布容積};
\node[cell, minimum width=9cm] at (9.5, -1) {単回急速静脈内投与後の\\血中濃度時間曲線下面積($AUC$)};
% --- 行2 ---
\node[cell, minimum width=1cm] at (0, -3.2) {\sffamily\bfseries 2};
\node[cell, minimum width=4.5cm] at (2.75, -3.2) {クリアランス};
\node[cell, minimum width=9cm] at (9.5, -3.2) {定速静脈内投与時の\\定常状態血中濃度};
% --- 行3 ---
\node[cell, minimum width=1cm] at (0, -5.4) {\sffamily\bfseries 3};
\node[cell, minimum width=4.5cm] at (2.75, -5.4) {消失半減期};
\node[cell, minimum width=9cm] at (9.5, -5.4) {定速静脈内投与時に定常状態血中濃度の\\50 \% に到達するまでの時間};
% --- 行4 ---
\node[cell, minimum width=1cm] at (0, -7.6) {\sffamily\bfseries 4};
\node[cell, minimum width=4.5cm] at (2.75, -7.6) {吸収速度定数};
\node[cell, minimum width=9cm] at (9.5, -7.6) {単回経口投与後の\\血中濃度時間曲線下面積($AUC$)};
% --- 行5 ---
\node[cell, minimum width=1cm] at (0, -9.8) {\sffamily\bfseries 5};
\node[cell, minimum width=4.5cm] at (2.75, -9.8) {消化管吸収率};
\node[cell, minimum width=9cm] at (9.5, -9.8) {等間隔・同投与量で繰り返し経口投与時の\\定常状態平均血中濃度};
\end{tikzpicture}