だが定期的な服用が必須であり、一日でも服用しなければたちまち死に至る。

Sentence Analyzer

English Translation

However he has to take it at fixed intervals, just one day without taking it is swiftly fatal.

Furigana

だが定期的(ていきてき)な服用(ふくよう)が必須(ひっす)であり、一(いち)日(にち)でも服用(ふくよう)しなければたちまち死(し)に至(いた)る。

Romanji

Daga teikiteki na fukuyō ga hissu de ari, ichi nichi demo fukuyōshinakereba tachimachi shini itaru.

Words

だが (だが、ですが)

but; however; (and) yet; nevertheless; still; for all that

定期的 (ていきてき)

periodic; regular; routine

だ (だ)

be; is; indicates past or completed action; indicates light imperative

服用 (ふくよう)

taking medicine; dosing

が (が)

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

必須 (ひっす、ひっしゅ、ひっすう)

indispensable; required

或 (ある)

a certain ...; some ...

一 (いち)

one; best; first; foremost; beginning; start; bottom string (on a shamisen, etc.)

日 (にち)

Sunday; day (of the month); counter for days; Japan

でも (でも)

but; however; though; nevertheless; still; yet; even so; even; however; no matter how; even if; even though; ... or something; either ... or ...; neither ... nor ...; pseudo-; quack; in-name-only; for lack of anything better to do

忽ち (たちまち)

at once; in a moment; suddenly; all at once; quickly; promptly; immediately

死ぬ (しぬ)

to die; to pass away; to lose spirit; to lose vigor; to look dead; to cease; to stop

至る (いたる)

to arrive at (e.g. a decision); to reach (a stage); to attain; to lead to (a place); to get to; to come; to arrive; to result in

Kanji

定

Readings: テイ、ジョウ、さだ.める、さだ.まる、さだ.か

Meanings: determine, fix, establish, decide

期

Readings: キ、ゴ

Meanings: period, time, date, term

的

Readings: テキ、まと

Meanings: bull's eye, mark, target, object, adjective ending

服

Reading: フク

Meanings: clothing, admit, obey, discharge

用

Readings: ヨウ、もち.いる

Meanings: utilize, business, service, use, employ

必

Readings: ヒツ、かなら.ず

Meanings: invariably, certain, inevitable

須

Readings: ス、シュ、すべから.く、すべし、ひげ、まつ、もち.いる、もと.める

Meanings: ought, by all means, necessarily

一

Readings: イチ、イツ、ひと-、ひと.つ

Meanings: one, one radical (no.1)

日

Readings: ニチ、ジツ、ひ、 -び、 -か

Meanings: day, sun, Japan, counter for days

死

Readings: シ、し.ぬ、し.に-

Meanings: death, die

至

Readings: シ、いた.る

Meanings: climax, arrive, proceed, reach, attain, result in