Derw

**Derw** is a high toxicity potion that aids the witcher in their particular fighting style. It increases his stamina so he can fight for extended periods of time without getting fatigued. ​

## Effects

Upon consuming the potion, the witcher's muscles will receive a boost in blood flow, allowing them to continue fighting for longer periods of time without feeling fatigued. Additionally, the potion may also help to reduce muscle soreness and fatigue during and after combat, allowing the witcher to recover more quickly and be ready for their next battle.​

Derw also has other benefits, it increases the witcher's strength and agility, allowing them to land harder blows and to dodge or parry attacks with greater ease. The potion also enhances the witcher's senses, making it easier for them to react to their opponent's movements. It also makes the witcher more resistant to pain, allowing them to fight through injuries that would incapacitate a regular person.

It's important to note that Derw is a high toxicity potion, meaning that it should be used with caution, and only in situations where it is truly necessary.

## Brewing

The method for preparing the Derw potion is as follows:

1. Begin by crushing equal parts of Wolfsbane and Winter cherry, and add them to a pot of boiling water.
2. Next, add a few crushed leaves of Absenta to the mixture and stir.
3. Once the mixture has simmered for a few minutes, add a handful of Hops to the pot and continue to simmer for an additional few minutes.
4. Add a small amount of crushed Scarix to the pot, and let the mixture simmer for a few minutes more.
5. Strain the solids out of the mixture and set the liquid aside.
6. In a separate pot, add a small amount of Alcohest and bring it to a simmer.
7. Add the strained liquid from step 5 to the Alcohest, and simmer the mixture for a few minutes.
8. Bottle the potion and allow it to cool before using.

As with the previous potion, it's important to note that the quantities of the ingredients and the timing of the simmering may vary depending on the desired strength of the potion. It's also important that the ingredients are fresh and of the best quality. Additionally, the alcohest is optional, it's not a necessary ingredient but it helps to preserve the potion and also adds a better flavor. As with the Twymder potion, it's important to keep in mind that this is a high toxicity potion and should be used with caution.

## Contraeffects / Side effects

Some of the potential side effects of consuming Derw potion are:

* Fever: Consuming Derw can cause a temporary increase in body temperature, resulting in fever-like symptoms. This can cause sweating, chills, and discomfort.
* Tiredness: Despite the potion's ability to increase stamina, the effects of Derw can cause excessive tiredness and fatigue, especially after the potion's effects wear off.
* Pain: While the potion does make the witcher more resistant to pain, it can also cause pain in different parts of the body such as headaches, muscle cramps or even stomach pain.
* Muscle cramps: The increased blood flow to the muscles caused by Derw can lead to muscle cramps, especially if the witcher engages in intense physical activity.
* The side effects of Derw usually last for about 6 hours.

It's important to note that these are potential side effects, and may vary from person to person. It's also important to keep in mind that the side effects may be more severe if the potion is consumed in large doses or if it is consumed too frequently.

## Notes

* Please note even though it mentions a human, it is still toxic to them.​