This section is from the book "Practical Materia Medica And Prescription Writing", by Oscar W. Bethea. Also available from Amazon: Practical Materia Medica and Prescription Writing.
Ordered in the treatment of syphilis.
The continued application of the above will frequently produce irritation.
More than eight applications in succession are usually indicated, so may well be ordered at once for several reasons.
There is nothing to mix.
It is better to specify waxed or oiled paper.


Complete written instructions should, of course, be left with patient as to baths, site of applications, etc.
The pharmacist will charge for putting this into doses; so when economy is a factor the ointment may be ordered in bulk and the directions made to read: Apply a teaspoonful every night.
Sulphur, unless otherwise specified, means the sublimed or common, which is not the best to use here.
Peru is not the full word wanted; so should either be carried out or a period used.
The quantity here would be too much for a 1-ounce jar and too little to look well in a 2-ounce jar.

Prescribed for a case of scabies.

Written instructions should be left as to duration of treatment, bathing, change of clothes, etc.
Note the fluid, balsam of Peru, is prescribed by weight. It adheres to the vessel to such an extent that in this quantity it is more conveniently weighed than measured.
This ointment was ordered for Mrs. Coleman to relieve an erythema resulting from the continued use of wet bichloride vulva pads.

The name of the patient is misspelled. The correctness of patient's name is important.
The name of the acid is misspelled.
Each word in each name in the inscription should begin with a capital letter.
It is hard to well incorporate zinc oxide in an extemporaneous ointment. It is better to order the ointment of zinc oxide.

Phenol may be added to this if marked itching is a factor. Boric Acid is often used in the above formula. After the ointment has been thoroughly applied the area may be with bismuth subnitrate for comfort and protection to clothing.

Prescribed for eczema, particularly of the scrotum.
Camphor is not a gum.
Petroleum Jelly is not the proper name of the agent wanted.
It is unnecessary to instruct that an ointment be made, as nothing else could result from mixing the above ingredients.
The ointment boxes used by the majority of druggists admit of only limited label space.
Camphor and hy-drated chloral will liquefy when triturated together, and with the petrolatum should form a smooth ointment.
Written instructions should be left as to manner and frequency of application, use of water, oil, etc.
From 1 to 5 grains of cocaine hydrochloride are sometimes added, but is usually unnecessary.
If it produces discomfort, instruct that it be diluted with vaseline.

This ointment is frequently ordered for sore eyelids.
There is no advantage in specifying the color of the patient, but age should be indicated.
Petroleum Jelly is not the official name of the agent wanted.
The quantity of the ointment is too large for the purpose intended, as it might become contaminated, and only a small amount is usually required.
An abbreviation should be followed by a period.
The prescription should be signed.


Experience has taught that it requires a considerable effort to get the salt distributed through the vehicle in a sufficient degree of fineness. Particles of any appreciable size are apt to be distinctly irritating. It is well, therefore, to instruct that the druggist
"rub well."
Prescribed for acute mastitis.

When a small quantity of an oil is wanted for flavoring it is better to prescribe drops, as 5 minims are not easily measured.
Cold Cream is not the official name of the preparation wanted.
The quantity of the ointment is entirely too small for the purpose intended.
The abbreviation a.a. is both improperly made and placed.

This formula is frequently employed for such conditions as orchitis, infected hands and feet, etc.
Ammoniated mercury is frequently added when an active antiseptic is desired.
The area is often painted with tincture of iodine before applying ointment. If iodine is used mercury must be omitted.
Camphor and phenol are frequently employed additions to the above.
This has been used for prickly heat.

The manner of giving the name of patient might be improved upon.
Boracic Acid is not the name of the drug wanted.
It would be well to emphasize the fact that the ingredients should be rubbed well.
If the directions for applying are too long to put on a label it would be well to remind patient that there is a special method of employment.

If there are too many children to specify, it would be better to write as Mr. Jones's Children. The ages are unimportant here, but it is a good habit to always specify, if possible.
Written instructions may be given the nurse, as "Put the powder in a cloth bag and apply three times daily by gently patting the affected parts after bathing." Frequency of bath would depend on the weather, condition of patient, etc.
 
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