How old do you need to be to take fertility drugs?

No Specific Age: There is no specific age. Most women are at least 18 years old but i suppose in certain circumstances a younger women could take medicines (for instance to freeze eggs before cancer treatment). Many women in their early 20's up to late 40's take medicines.

Age & fertility drug: The use of fertility drugs is not age related, but more importantly need related. If you are of reproductive age and for whatever reasons they are indicated then by all means use them. If you are over 40 yrs old they are less effective, but are helpful in certain instances. Seek the opinion of a reproductive gynecologist.