Now for a themed set which was bouncing around in my skull all afternoon.
Pastilles of Winter
Perdo Corpus 13 (Base 5, R: Touch, D: Momentary, T: Individual, +3 targeted effect) charged item
An ash wood box of sour cherry and honey medicinal lozenges, with the covenant's crest moulded on top of each. Biting down on a lozenge renders any woman temporarily infertile, an effect which heals as a Light Wound. As a side effect, women using a Pastille of Winter skip their mensural cycle while infertile. Folk Witches using this medicine are still ravaged by the Blood Moon, but the damage is internal and leaves no tell-tale marks. The lab text for this item offers a +3 bonus for cherries' sympathy with bloodshed, which could be higher if the apprentice worked on it further.
These lozenges were a side project by a young Tremere apprentice, destined to be a great healer. Part of his medical training was to cook up inert sugar pills for practice, but he eventually grew bored and wanted to make something the covenants' grogs would appreciate.
Pastilles of Summer
Rego Corpus 15 (Base 4, R: Touch, D: Sun, T: Individual) charged item
A white pine box of dried fig and honey lozenges, spiced with cumin and asafoetida resin. Biting down on a lozenge makes a person's body sexually aroused until the next sunrise or sunset, even if they were previously unable. The person's will is unaffected and the choice to make coitus is their own. The lab text includes a +3 bonus from the fig's sympathy with fertility.
Another early creation by the young Tremere healer. He famously warned his patients to take the Pastille only a few hours after midday, and that an arousal lasting more than four hours may cause harm (not entirely incorrect; this effect causes the loss of a Fatigue level if it lasts more than Sun duration). Even more famously, one of the lozenges fell into the hands of an elderly couple unaffiliated with the covenant, who bore a child while past the age of 60.
Pastilles of Autumn
Creo Corpus 15 (Base 4, R: Touch, D: Sun, T: Individual) charged item
A hastily repurposed white pine box of birch syrup and honey lozenges, wrapped in sweet basil leaves. Biting down on a lozenge affords an expecting mother +3 to Childbirth rolls until the next sunrise or sunset. Because of how long giving birth can take, multiple doses might be required. The lab text includes the +3 bonus towards childbirth granted by the birch tree.
The young Tremere healer found himself in dire straits after his parens heard about the miracle conception he indirectly caused. Under very close supervision, the apprentice was ordered to do everything in his power to clean up the mess he created, including making sure the elderly mother-to-be survived.
Pastilles of Spring
Perdo Vim 15 (base 5, R: Touch, D: Momentary, T: Individual, +5 for Penetration 10) charged item
A rounded tin canister filled with lozenges of frankincense, honey and a pinch of hot paprika. Biting down on a lozenge triggers a Demon's Eternal Oblivion effect, stripping 5 points of Might from any demon which happens to be possessing the target. This is enough to slay a demon of Childbed Fever or drive them away, unless the demon is both very powerful and very petty. The lab text grants the +3 bonus frankincense provides to Perdo Vim effects in particular.
As a final precaution, the young Tremere's parens had them practice their anti-magic talents for a season. This medicine never had to be used on the elderly mother, but the potion became common in the Transylvanian Tribunal regardless.