Griseofulvin
Griseofulvin and ketoconazole
Gris-PEG and griseofulvin
Gris-PEG and Fulvicin
Fulvicin and griseofulvin
Murray H. Freedman has written: 'In Vitro sorption of griseofulvin by keratin substrates and preliminary mode of action studies of griseofulvin on certain dermatophytes'
Ortho-McNeil
a. Fungi. Griseofulvin is effective against fungi by disrupting their mitotic spindle formation during cell division.
Griseofulvin is an antifungal medication used to treat fungal infections of the skin, hair, and nails. It works by stopping the growth of fungus, thus helping to clear the infection. It is typically used for infections such as ringworm and athlete's foot.
Griseofulvin (also known as Grisovin, a proprietary name of Glaxo Laboratories) is an antifungal drug that is administered orally. It is used both in animals and in humans, to treat fungal infections of the skin (commonly known as ringworm) and nails. It is derived from the mold Penicillium griseofulvum. (Wikipedia)For the source and more detailed information concerning your request, click under the related links section (Wikipedia) indicated directly below this answer section.
Examples of drugs that are known to cause dysgeusia include lithium, penicillamine, procarbazine, rifampin, vinblastine, vincristine, captopril, griseofulvin, and thyroid medications.
I assume you son was treated with griseofulvin for the tinea capitis (scalp ringworm)? If so, sure, he may have a haircut.