Question: what over the counter medications cause hair loss?
Answer: Cimetidine.
Retinoids (e.g. acitretin)
Antithyroid drugs.
Amphetamines.
Non-steroidal anti-inflammatory drugs (NSAIDs)
Bromocriptine.
Levodopa.
Tricyclic antidepressants (e.g. amitriptyline)