The Compendium of Caraka 6.2.4

Now we shall expound the quarter on virilisation beginning with "When a Man Has Gained Strength".
How a man, once he has gained strength, may approach women as much as he desires,
and how he may quickly become possessed of offspring—that will be taught.
For not all men who have gained strength are blessed with offspring;
some of large body and strong are weak with women.
And some of small frame are strong with women and have many progeny;
some are weak by constitution, and some are weakened by disease.
Some men approach a woman repeatedly like a sparrow,
while some discharge like an elephant, but do not copulate often.
Some possess strength due to season and circumstances, some are steady through habituation;
some are made potent through efforts, while some are virile by nature.
Therefore, we shall explain regimens that bestow strength to the weak,
provide easy enjoyment to the strong, and further increase their strength.
Having first purified the body with unctuous and non-unctuous enemas,
one desiring strength should administer preparations that increase semen and offspring.
Enemas combined with ghee, oil, meat soup, milk, sugar, and honey
should be administered to those who eat a diet of milk and meat soup.
Having pounded pork, added black pepper and rock salt,
and made pills the size of a jujube berry, one should roll them in heated ghee.
And hardened by rolling, they should be thrown into chicken soup
rich in ghee, fragrant with spices, and blended with yoghurt and pomegranate juice.
One should cook that soup in such a way that the pills do not break;
drinking that soup and eating those pills, he obtains inexhaustible semen.
In this way the physician should prepare pills from other fatty meats
along with soup; their use increases semen.
(Thus end the virilising meat pills.)
Sprouted, cleaned, dehusked māṣa together with seeds of ajaḍā
should be thrown, in measured quantity, into buffalo meat soup rich in ghee,
blended with yoghurt and pomegranate juice, along with coriander, cumin, and dry ginger.

Eaten and drunk, that soup produces inexhaustible semen.
(Thus ends the virilising buffalo soup.)
He who eats fresh fish or well-fried carp
in heated ghee would not suffer exhaustion among women.
One desiring offspring should consume rohita fish fried in ghee, in goat meat soup,
blended with fruit juice, unctuous, with soup drunk afterwards.
(Thus ends the virilising fish fried in ghee.)
One should cook pancakes in ghee from minced fish
combined with asafoetida, rock salt, and coriander, along with wheat flour.
And one should cook fish in buffalo meat soup, unctuous, sour, and salted;
when the soup is reduced, one should mash the flesh and toss in there:
black pepper, cumin, coriander, a little asafoetida, and fresh ghee;
one should prepare that as stuffing for pancakes of māṣa.
These two pancake formulations are nourishing, strength-increasing,
givers of excitement and good fortune, productive of sons, and supremely semen-increasing.
(Thus end the two virilising pancake formulations.)
A dough of māṣa, ātmaguptā, wheat, śāli, and ṣaṣṭika rice,
with powder of sugar, vidārī, and ikṣuraka,
mixed in smooth milk, one should cook into pancakes in ghee;
taken with milk as an after-drink, they quickly produce supreme virility.
(Thus end the virilising pancakes of māṣa and other ingredients.)
There should be one tulā of sugar, one of cow's ghee,
a prastha of vidārī powder, and also a prastha of long pepper,
half an āḍhaka of tugākṣīrī, and [the same of] fresh honey;
all that, thoroughly mixed, should be kept in an earthen vessel coated with ghee.
One should administer a dose of it equal to one's digestive fire every morning;
this formulation is supremely virilising, strengthening, and nourishing.
Having prepared separate decoctions in water of śatāvarī and vidārī,
as well as of māṣa, ātmaguptā, and śvadaṃṣṭrā,
and then cooking a prastha of ghee in eight times as much milk,
one desiring offspring should consume it mixed with sugar and honey.
(Thus ends the offspring-producing ghee.)

One should cook a pātra of ghee in a hundred times as much fresh juice of vidārī;
when prepared, one should cook it again in a hundred times as much cow's milk.
Combined with one-fourth parts each of sugar, tugākṣīrī,
honey, ikṣuraka, long pepper, and ajaḍā,
the physician should make pills the size of a large udumbara fruit;
from their use, a man becomes excited like a sparrow.
(Thus end the virilising pills.)
A hundred palas of rock sugar, half of that of fresh ghee,
combined with a one-fourth part of honey, one should cook with a fourth part of water.
Spreading a quarter part of thick wheat flour on a clean, smooth,
wide stone slab, one should knead it into a paste.
Pure pancakes resembling the disc of the moon should be made;
from their use, a man can satisfy women like an elephant.
(Thus ends the virilising pancake.)
Whatever is sweet, unctuous, life-giving, nourishing, heavy,
and gladdening to the mind, all that is called virilising.
Therefore, saturated with such substances, one should approach a woman,
aroused by one's own urge and delighted by the woman's qualities.
Having copulated, bathed, and drunk milk or meat soup, a man should lie down;
in that way, his semen and strength are replenished further.
Just as the fragrance of a flower bud is not perceived,
but is perceived once it blossoms, so indeed is semen in embodied beings.
Not before sixteen years and not beyond seventy
should a man desiring longevity engage in union with women.
For a boy who is too young, whose tissues are all incomplete, in approaching a woman,
would dry up suddenly, like a pond with little water.
Just as wood that is dry, un-unctuous, insect-eaten, and dilapidated
crumbles quickly when touched, so does an old man in approaching women.
Through old age, anxiety, diseases, over-exertion from physical labor,
fasting, and excessive indulgence in women, semen suffers depletion.
From depletion, fear, lack of confidence, grief, seeing faults in a woman,
being insensitive to the aesthetic pleasure of women, absence of desire, and lack of indulgence—
even when well-nourished, one does not have the capacity to approach women.

Excitement depends on the strength of the body and the mind, and capacity is born of excitement. / Just as juice is present throughout sugarcane, ghee in curds, and oil in sesamum, / so semen is present throughout the entire body in the sense of touch. / In the union of woman and man, through movement, intention, and pressure, / that semen slips from its place, like water from a wet cloth. / Through excitement, through yearning, through mobility, through sliminess, and through heaviness, / through subtle fluidity, and through the speed of the wind— / from these eight causes, semen is poured out from the body. / What is called the substance of form of that manifold [semen] as it moves: / thick, sweet, unctuous, not foul-smelling, heavy, slimy, / white, and abundant—that semen is fruitful beyond doubt. / That by which a man attains capability with women like a stallion, / and by which he approaches them with great vigor, is indeed virilisation. / When women are not to be approached, the entire determination of semen, / and its definition are set forth here in [the section] beginning with "When a Man Has Gained Strength".