[Radek]

Restore STR: Scamp Skin + Gold Kanet or Stoneflower Petals
Fortify STR: Ash Yam + Dreugh Wax

There is a bug in the logic of attribute boosting in Morrowind. If you are fortified then you will not be noticed that your attribute is drained. Only the lowered value of the (boosted) attribute and the icon among the "spell effects" will tell you that something is wrong. Moreover you cannot heal the attribute as lon as you are fortified. You have to wait until the boost elapses and your attribute becomes red. Only then you can heal.
As you have seen, this can be critical if you are fortified really seriously. You can lose all your "base" value of your attribute and become literally helpless once the fortification passes. You are doomed to observing what will happen when the boost ends. You cannot do anything. And I am not sure whether you cannot be killed when your base value is sucked to zero.
Therefore, be very careful with serious boosting of your attributes. You'd better avoid temporary boosts by means of potions and use constant effect magic items instead. You can always unequip them,heal, and reequip them. Even then you can solve problems with drained INT (not enough spell points).
I recommend creating a custom Restore INT spell, which will cost only 1 spell point. Well, it will heal INT not too much but it will heal enough so that you will be able to cast stronger spells. Also, create a custom Restore All Other Attributes spell (Restrore Attr is a cheap spell so that you can afford it) and use it whenever you get drained.