This is another mod that has been on my to-do list for a while.
As the title suggest, this mod gives your Sim the option to take HRT for transitioning or other story telling purposes. It adds 3 new items you can purchase on the Computer:
Tostran 2% Gel (Testosterone), EstradiolGel 0.1% Gel (Estrogen) and Anti-androgen Treatment
(there are various solutions for taking hormones, I chose to introduce only the gel ones for various reasons, one of them is that the shots are monthly and I don't know what lifespan/season length other people play)
To unlock the option to buy them, you need to visit a doctor to get the prescription:

Research Hormone Replacement Therapy on the web. Once done, the option to visit the Doctor will unlock on the phone:
- Making the research on the PC will also unlock the option to tell other sims about your sim's intention to start the therapy.
- Once the other sim knows, they can ask your sim about the therapy.

Your Sim will be away for a while

Once they got the prescription, you can purchase hormones from the PC under the "order" menu

To keep up with the therapy, you need to take hormones on a daily basis. The effect wears off in 24 hours. You'll not be able to take hormones twice a day.
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The effects of the hormones are different between estrogens and testosterone (they actually vary from person to person, like I never experienced more sex drive, for example, but I went for a standard approach in this mod)
The effect of taking hormones is also different if the gender in CAS is set to female or male. Females taking Estrogens will not experience the moods effects, same is valid for males taking testosterone. The effects on the body will be the same but less intense, this means that:
1. The mod can effectively be used to play other conditions than transition, like menopause ad hypogonadism;
2. You can decide when your sim is done with the transition and can pass to the maintenance therapy, going on taking hormones all life if you want. Once you change the gender in CAS, it will mean that the transitioning phase is over and the body doesn't experience anymore the fight between the biological hormones and the therapy, so the mood will be stable.
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You only need Testosterone.
Effects:
Immediate: gives a +1 energized buff and makes them more likely to exercise for a couple of hours
Increases muscle gain, increases fat loss, increases physical stamina, increases hunger, on an emotional level, makes your sim more irritable (anger will decrease slower and they will feel it a bit more) increases the sexual drive (flirty buffs) and all the energized buffs. Lasts 24 hours
Testosterone can give random angry, flirty or energized buffs;
ALSO testosterone should stop period if you have WW (needs testing)
You need both Estrogen and Anti-Androgen to have the full ride.
Estrogens:
Immediate: gives a +1 confident buff and makes them more likely to flirt for a couple of hours
Increases fat gain, decreases hunger, makes harder to build muscles, on an emotional level, makes the Sim generally more emotional. Lasts 24 hours.
Estrogen can give mood swings (Optional) - to add this, I would have had to replace a lot of tuning from Maxis. Since I didn't want to, I used a trick... the estrogen buff will add the uncontrolled emotions trait to your sim (unless they already have it, or have the controlled emotions one) and will remove it once it's removed. THE PROBLEM: this method will remove the trait also if the sim has it from aging up... you'll need to add it back manually at the end of the therapy. For this reason, this feature is optional (estrogen, though, gives moods swings on high doses like the ones for HRT, and I wanted this realism)
Anti Androgen:
Increases muscles loss
This is only for the transition phase, you'll still need to go in CAS and fix the gender options/sliders in case you want to... also, usually you need to take the therapy all life long, but in the game you can actually stop once you got the desired result, I chose to not cast this hassle on your sims.
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UPDATES:
09/23 Updated for Psychotherapy
Added: some interactions to the PC if you have the mental health mod and a diagnosis of gender dysphoria. Your sim can now decide when they're done, and request a change of documents. Be ware that it's pricey, and requires time. Once they get it, tough, the trait Gender Dysphoria will be removed and cannot be added anymore.
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Sims with a diagnosis or that made the therapy can also chat in dedicated chatrooms and research gender dysphoria.
>> Chatting and researching Gender Dysphoria will remove the permanent buffs for a while (they should come back if you go through a Loading Screen if your sim gender and clothing preference match) and will also slow down the random ones, in case your sim can't take the therapy for some reason, doing these things will help them cope with the dysphoria.
Sims should now keep up with the therapy autonomously if you have the autonomy on and the effect of the hormones is over.
The request of change of documents doesn't impact your ability to purchase hormones.
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UPDATE:
28/07
Patch Update
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