यह दवा इस तरह लेनी है।

A word-by-word breakdown is:

• यह = this
• दवा = medicine
• इस = this (but in an oblique form, because it goes with a postposition-like expression)
• तरह = way / manner
• लेनी = to take, but in a feminine form agreeing with दवा
• है = is

So the structure is roughly:

• यह दवा = this medicine
• इस तरह = in this way / like this
• लेनी है = has to be taken / is to be taken

Even though the English translation may not sound word-for-word the same, this is a very normal Hindi way to give instructions.

Because दवा is a feminine noun in Hindi.

In constructions like X करना है / X लेना है / X खानी है, the verbal form often agrees with the object or action noun being talked about. Since दवा is feminine singular, you get:

• दवा लेनी है = the medicine has to be taken

Compare:

• पानी पीना है — पानी is masculine, so पीना
• रोटी खानी है — रोटी is feminine, so खानी
• दवा लेनी है — दवा is feminine, so लेनी

So लेनी is not random; it matches दवा.

In Hindi, verb + ना/नी/ने + है often expresses necessity, obligation, or what is supposed to be done.

So:

• लेनी है does not just mean is taking
• it means something like has to take / has to be taken / is to be taken

In this sentence, the sense is instructional:

• यह दवा इस तरह लेनी है।
• This medicine should be taken like this.

Hindi often uses है in places where English uses should, must, or has to.

Yes. In context, the person being addressed is usually understood.

This sentence is commonly said by a doctor, pharmacist, nurse, or caregiver, and the implied sense is:

• You should take this medicine like this or
• This medicine is to be taken like this

Hindi often leaves out subjects when they are obvious from context.

So even though तुम / आप is not stated, it is understood.

Yes, they are both forms of this, but they are used in different grammatical roles.

• यह is the direct/basic form: this
• इस is the oblique form, used before postpositions or in fixed expressions like इस तरह

So here:

• यह दवा = this medicine
• इस तरह = in this way / like this

This is very common in Hindi:

• यह लड़का = this boy
• इस लड़के को = to this boy
• इस तरह = in this way

So the change from यह to इस is due to grammar, not meaning.

इस तरह means in this way, like this, or this way.

Yes, it is very close to ऐसे in many situations.

For example:

• यह दवा इस तरह लेनी है।
• यह दवा ऐसे लेनी है।

Both can mean This medicine should be taken like this.

A slight difference:

• इस तरह can sound a bit more explicit or formal: in this manner
• ऐसे is often a little more conversational: like this

Another common version is:

• इस तरह से

So all of these may be heard:

• इस तरह
• इस तरह से
• ऐसे

Hindi word order is more flexible than English, but this sentence follows a very natural pattern:

• यह दवा — topic/object
• इस तरह — manner
• लेनी है — verbal idea at the end

A very common Hindi pattern is:

[thing] + [how] + [what to do]

So this sounds natural.

Some possible variations are:

• यह दवा इस तरह से लेनी है।
• दवा इस तरह लेनी है।
• इसे इस तरह लेना है।

These are all understandable, though they may differ slightly in emphasis.

The original sentence is perfectly natural for giving instructions.

That is a very common question for English speakers.

In English, we often think in terms of the subject controlling the verb. But in Hindi, in constructions like लेना है / करना है / खाना है, the form can agree with the noun connected to the action.

So:

• दवा लेनी है — feminine because of दवा
• रोटी खानी है — feminine because of रोटी
• काम करना है — करना stays masculine/default because काम works differently here as a noun meaning work

This is one reason Hindi can feel different from English: agreement patterns are not always based on the same logic English learners expect.

Yes. That is completely natural.

• इस तरह = like this / in this way
• इस तरह से = also like this / in this way

The से often makes the phrase feel a little fuller, but the meaning is basically the same here.

So both are fine:

• यह dवा इस तरह लेनी है।
• यह दवा इस तरह से लेनी है।

Yes, that is also correct, but the structure shifts a little.

• यह दवा इस तरह लेनी है। = This medicine should be taken like this.
• इसे इस तरह लेना है। = This should be taken like this.

Here, इसे means this in the sense of this one / this thing / this medicine.

A small difference in feel:

• यह दवा... explicitly names the medicine
• इसे... refers back to it as it / this

So if the medicine is already obvious in context, इसे इस तरह लेना है is very natural.

It is fairly neutral and very natural in instructional contexts, especially medical ones.

It sounds like something you might hear from:

• a doctor
• a pharmacist
• a nurse
• a caregiver

It is not especially casual, but not stiffly formal either.

If someone wanted to sound a bit more formal or polite, they might say:

• यह दवा इस तरह लेनी चाहिए।
• आपको यह दवा इस तरह लेनी है।

If someone wanted to be more direct and simple:

• दवा ऐसे लेनी है।

So the original sentence is a good standard instructional sentence.

A simple pronunciation guide is:

yah da-vaa is ta-rah lay-nee hai

A slightly more natural flow:

yuh du-vaa is tu-ruh lay-nee hai

A few notes:

• यह is often pronounced more like yeh or yah
• दवा sounds like davaa
• तरह is often said quickly, roughly tarah or tarh
• लेनी has a long े sound: le-nee
• है is usually pronounced like hai or sometimes closer to heh in fast speech

You do not need to pronounce every written sound very sharply for everyday speech; native speakers often reduce them a bit in conversation.