Do you often go on 2 hr walks and was it a hot day? Unless they're used to it a 2 hr walk would test many.
That is more likely to be the escitalopram (Lexapro). Sexual dysfunction is a common SSRI side-effect, especially at the beginning. If it persists you could try switching to citalopram (Celexa). While they are essentially the same drug their side-effects can differ.I also can no longer get any erections without viagra once i bumped up to 0.5mg..
I think it is more likely to be the alprozalam (Xanax), but some find escitalopram (Lexapro) fatiguing.Do you think the combination of Lexapro and 2mg of Xanax could be causing the lethargy?
Either way, I suggest you get checked out by a doctor just in case. Always assuming it's the med when something unusual happens can be a trap. We're as prone to humanity's ills as everyone else.
Weaning directly off alprazolam can be very difficult, mostly because of its short half-life. It would be better to switch to an equivalent dose of a longer half-life benzodiazepine such as diazepam (Valium) and wean off it. The alprazolam half-life is 11-13 hours and its metabolites don't add much if anything to that. For diazepam it is about 50 hr, plus up to 100 hours for its active metabolite. While alprazolam is completely eliminated within 2 days, it takes about 10 times as long for diazepam and its metabolite to be eliminated which usually makes for a much smoother 'ride' when weaning off.Can't wait to wean myself off xanax but it will be a long slow process.