Even if you are ill, don't take more medicine than is necessary.

[Daruma]

Hello

Even if you are ill, don't take more medicine than is necessary.
Even if you are ill, don't take more medicine than necessary.
Even if you are ill, don't take an unnecessary amount of medicine.

Do these all sound grammatically good? I think that "..., don't take too much medicine" is an easier way of saying the same idea.

Thank you.

[dragn]

Even if you are ill, don't take more medicine than is necessary.
Even if you are ill, don't take more medicine than necessary.
Even if you are ill, don't take an unnecessary amount of medicine.

All these are OK and mean the same thing.

However, be aware that saying "don't take too much medicine" may not necessarily suggest the exact same thing. If you "take too much medicine," the suggestion may be that you take an amount that not only is more than necessary, but an amount that is actually detrimental in some way. Saying "don't take more than necessary" doesn't necessarily suggest this. It's more like suggesting that there's no point in wasting medicine. The difference is subtle, but it's there.

Hope this makes sense.

Greg

[PROESL]

Hello

Even if you are ill, don't take more medicine than is necessary.
Even if you are ill, don't take more medicine than necessary.
Even if you are ill, don't take an unnecessary amount of medicine.

Do these all sound grammatically good? I think that "..., don't take too much medicine" is an easier way of saying the same idea.

Thank you.

Hello

They don't sound correct. They are correct. They sound good, as well as natural. However, they would sound more natural, and logical, if you add one more word, and that word is "extremely". Using "extremely" gives more justification to the entire statement.

Even if you are extremely ill, don't take more medicine than is necessary.
Even if you are extremely ill, don't take more medicine than necessary.
Even if you are extremely ill, don't take an unnecessary amount of medicine.

Yes, there could be an easier or more efficient way to express the idea in your example sentences. However, sometimes this sort of notion is not relevant. Variations, and nuances, in the way we express an idea add meaning, feeling, personality, and dimension to our words. Now, for some reason, your question evoked this response. I hope you don't have a writing teacher who is instructing you to use as few words as possible. In business writing, and other types of writing perhaps, this is mostly advisable, but not in all writing. It depends on what your purpose in writing is as to whether or not focusing on brevity is practical.

Here's a way to paraphrase your sentences. I think it adds a few more words, but the statement comes across stronger and comes across sounding more urgent.

No matter how sick you are, don't take more than the prescribed dosage of your medication.

On another note, I should say that when I talk about how something sounds, I'm talking about how familiar it sounds, how natural it sounds, and how usual or typical it might be - or might not be.