Translate medical terminology on report from convict ship

[Girl Guide]

I wonder if was meant to be one third of a fluid ounce.  It is somewhat unclear isn't it.

[Robert Fletcher]

You have to remember this was a medical measure and the doctor would write up using the Apothecaries' measure. From Dictionary.com we have. "In Great Britain 20 minims = 1 fluid scruple; 3 fluid scruples = 1 fluid dram; 8 fluid drams = 1 fluid ounce; 20 fluid ounces = 1 pint; 8 pints = 1 imperial gallon (277.42 cubic inches)." Carefull you are not overdosing him.:-)

[bbart]

If this record is from 1864 or earlier, that strange 3 is the symbol for ounce. 
It could be a  long s and regular s following the strange 3,  making the dosage one half ounce. (ss =  semis = half).

[sumay]

Thank you all for your help.  The document was from 1830. I had wondered if the strange 3 was a symbol for an amount. 
It had been suggested by a friends sister that the MOM could stand for milk of magnesium.

I have another section of the report which I will post. Not quite sure which is the correct way to go about this. Could someone let me know if I add it to this post or do I start it as a new post?

[mckha489]

Add it to this post as it is part of the same document

[sumay]

Thank you Mckha489. 
This is another part of the report. Again it is the treatment he was given which has me scratching my head. which is the first 3 lines and the 2nd and 3rd last lines.

Thankfully he was given a flannel waistcoat and trousers to keep him warm and some fruit.
Thanking you

[mckha489]

The last part

I don’t know what the two words after weakness are.

Pilula, which appears twice, is Pill.
Is omit Pilula = stop taking the pills?

Cont . frict^o a. a.

a.a. = of each

Not sure how to make sense of that.

[josey]

I think it may be 'n a' or 'u a' after 'frict^o'...

[arthurk]

The exact Latin fails me at the moment, but I wonder if the first three lines begin:

Omit. - treatment to be discontinued
Capt. - treatment to take (ie start)
Cont. - treatment to continue

and could u.a. be ut ante - as before?

Other words:
2nd line Antim[ony]
Frict^o - maybe some kind of massage or rubbing (cf friction)?