Prendo l’antibiotico dopo colazione e seguo la terapia fino a venerdì.

In Italian, the subject pronoun is often omitted because the verb ending already shows who is doing the action.

• Prendo = I take
• The -o ending tells you it is I

So Io prendo is possible, but Prendo is more natural unless you want emphasis, contrast, or clarity.

For example:

• Prendo l’antibiotico. = I take the antibiotic.
• Io prendo l’antibiotico, lui no. = I take the antibiotic, he doesn’t.

Because antibiotico begins with a vowel, il becomes l’.

This is called elision.

• il libro → the book
• l’antibiotico → the antibiotic

So:

• il
  • consonant
• l’
  • vowel

Since antibiotico starts with a, you say l’antibiotico.

In Italian, meals often appear without an article when speaking generally or in common time expressions.

So:

• dopo colazione = after breakfast
• prima di pranzo = before lunch
• a cena = at dinner / for dinner

Using an article is possible in some contexts, but dopo colazione is the normal way to say after breakfast in a general sense.

Both can exist, but they are used differently.

• dopo colazione is the usual, natural expression for after breakfast
• dopo la colazione sounds more specific: after the breakfast, perhaps a particular breakfast already mentioned

In everyday instructions like medicine schedules, dopo colazione is the standard choice.

Italian often uses the present tense where English might use either the simple present or a more contextual form.

Here Prendo and seguo are present tense forms:

• Prendo l’antibiotico = I take / I’m taking the antibiotic
• seguo la terapia = I follow / I’m following the treatment

In this kind of sentence, the present tense usually describes a current routine, instruction, or ongoing treatment plan.

Seguo literally means I follow, from the verb seguire.

In a medical context, seguire una terapia means:

• to follow a treatment
• to stick to a course of treatment
• to continue the prescribed therapy

So it does not mean physically walking behind something. It means following medical instructions or treatment.

Not necessarily. In Italian, terapia can mean treatment, especially in a medical context.

So:

• seguo la terapia is often best understood as I follow the treatment or I continue the treatment plan

A native English speaker might think only of psychological therapy, but in Italian terapia is broader and commonly refers to medication or medical treatment.

Fino a means until or up to.

So:

• fino a venerdì = until Friday

In Italian, fino is normally followed by a preposition such as a:

• fino a domani = until tomorrow
• fino a lunedì = until Monday
• fino alle otto = until eight o’clock

That is why you say fino a venerdì, not just fino venerdì.

In Italian, the days of the week are normally written in lowercase, unlike in English.

So:

• lunedì
• martedì
• mercoledì
• giovedì
• venerdì

This is standard Italian spelling.

The accent mark shows the stress on the final syllable.

• venerdì is stressed on -dì

Many Italian words stressed on the last syllable are written with an accent:

• città
• perché
• così
• venerdì

So the accent is part of the correct spelling.

Grammatically, parts of that are possible, but it sounds less natural in this context.

More natural:

• dopo colazione rather than dopo la colazione
• fino a venerdì rather than fino al venerdì

Why?

• dopo colazione is the usual idiomatic expression
• fino a venerdì means until Friday
• fino al venerdì can sound like until the Friday or may suggest a repeated/habitual idea in some contexts, so it is not the best choice here

So the original sentence is the most natural version.

The dictionary forms are:

• prendere = to take
• seguire = to follow

The forms in the sentence are first person singular present:

• io prendo
• io seguo

This is useful because Italian verbs are usually learned from the infinitive form:

• prendere
• seguire

Then the verbs would change to the tu form:

• Prendi l’antibiotico dopo colazione e segui la terapia fino a venerdì.

Changes:

• prendo → prendi
• seguo → segui

That would mean:

• You take the antibiotic after breakfast and follow the treatment until Friday.

This is useful because medical instructions are often addressed directly to the patient.