Question: Answer each question in about one sentence: (a) What is the biochemical basis for the action of Viagra? (b) What is the biochemical basis for

Answer each question in about one sentence:
(a) What is the biochemical basis for the action of Viagra?
(b) What is the biochemical basis for the action of Prozac?
(c) Oral administration of S-adenosylmethionine has been reported to be eﬀective in treating depression. Suggest a possible explanation.

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a Viagra inhibits cyclic GMP phosphodiesterase so cGMP levels remain high thereb... View full answer

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