Irritable Bowel Syndrome Message Boards | Hyoscyamine (a.k.a. the miracle drug) questions

Hey everyone, it has been a long time since I've posted here, but I hope everyone is well! I have a couple of questions if you all don't mind, but first, I must tell everyone that I have stumbled upon a drug, Hyoscyamine, that literally takes most, if not all, of my IBS-C symptoms away! It's an antispasmodic, and it goes by a number of names: one of it's brand names is Levsin, and one of it's generics is Hyomax (what I take). And it's cheap! So if you haven't tried it yet, make sure to run it by your doctor! But, in any event, a couple questions:

1. For those who are taking it, does anyone know if there is a limit to how long you can take it? I don't mean how much in a day, but for how long. For example, could I take Hyoscyamine SR 0.375 mg (the all day version of Hyoscyamine) every day for the rest of my life? I ask because some medications your body gets "used" to, and it stops working as well as it used to. I want to know if I should "ration" my supply so as to not have my body get used to it, so to speak.

2. What negative side affects have anyone encountered with Hyoscyamine use? I noticed a couple of people saying that they get tired, is that true?

3. During an attack, is it okay to take more than 0.125 mg of Hyoscyamine in any given 8 hour period?

Thanks so much everyone!

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- John

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