OF this kind are the _Syr. Diasari Fernelij_, _Syr. Scabios. compos. Oxymel. Scillit._ and chiefly the _Sal Vitrioli_; but the Antimonial Preparations are not so advisable. The Dose of the _Emetick_ ought to be large enough to Empty the Stomach soon; and the Posset-drink used in the Operation, in order to rince off its Coats all Filthiness, is to be impregnated with _Carduus_, _Scordium_, _Meadow-sweet_, _Butterbur_, &c. boiled in it. In my own Practice, I have always found good Service from large Draughts of the Posset-drink above-mentioned, sweetned with _simple Oxymel_, without any other previous _Emetick_ given. AFTER Vomiting is over, in order to enable the Stomach the better to keep any Alexipharmick Medicines, its Force may be greatly strengthned by adding Stomachicks to the Alexipharmicks: But if a Reaching to vomit prove Symptomatical, _Emeticks_ are by all Means to be avoided; least the Physician (like old Nurses, who are altogether ignorant of the Rules of Practice) should promote that Symptom, which by fruitless Strains waste the Spirits, and sollicit the pestilential Venom into the Stomach from distant Parts; which when fixed there, still irritates into more violent Reachings, that cannot be asswaged by any Remedies. ALTHOUGH in other Cases a Vomiting may be removed by _Emeticks_, yet in a Pestilence it is dangerous to follow such Practice; because the Malignity, or rather Nitro-saline _Effluvia_, vellicate the Mouth of the Stomach, and so invert its nervous Coats, although empty, as to bring on Convulsions: And some Persons seem to have their Stomachs full, as overloaded with Food, who crave to be freed by Vomiting, which it is by no Means safe to indulge them in, because such a Sensation of Fulness proceeds only from the pestilential Poyson vellicating the Membranes, while the Stomach is it self free from Food, or bad Humours; but what further concerns this Matter, will come to be further considered under the Cure of Symptoms. MOREOVER, Purges are justly reckoned amongst Medicines of great Efficacy; but whether or no they are to be used in the Case before us, is a Difficulty, and full of Controversy amongst Physicians; and indeed the Varieties in pestilential Diseases, the Differences of Constitutions, the various Complication of Circumstances, the Uncertainty of Seasons, _&c._ do make it impossible to give any general Rules hereupon; wherefore I shall go no further than what my own Practice hath enabled me to judge concerning it. A Turgescency or Distemperature of Humours do certainly call for an Evacuation this Way; that is, when the Humours are troublesome more by their Quantity than any stimulating Quality; when therefore the Constitution is not able to conquer such a Burthen, neither by Digestion nor Expulsion, Catharticks are certainly necessary to help away the Load, and especially if a Person hath been before eating to Excess.