If it's true that she would have had to have taken more medication...
Howard has said that he didn't see her take any meds. So, if he didn't give them to her and he was the only one to interract with her the day she died...we'd have to believe that she went into the guestroom on her own and helped herself to more medication and then made it back to bed. Quite a trick if she couldn't make it to the bathroom on her own.
Bingo!!! Plus let's face it if he didn't see her taking drugs with her history he would have been freaking out because remember what he told Larry..."She needs these drugs to live."
Liar liar!!
And Dirty Sanchez and Barfy Barth are the devil's mouthpiece for hire.