It is the same shape as Hydrocodone that has "M357" on it and same color, just different imprint. 'SP 39'. ANY HELP WOULD BE GREAT. THANKS, ANNA
The pill is Guaifenesin 400mg.- It is an expectorant.-
Image of the pill:
Take care anna.-
I also looked it up and read it is GUAIFENESIN, which is an over the counter cough suppressant, like Robitussin. If you are still curious and want to be certain, I would suggest you take the pill into your local pharmacist and ask them. There are many websites with the same question about the pill you mentioned and several different answers, so the most reliable would be your pharmacist. :)
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