[thboy]

Viagra is usually taken “as needed” as Teddy stated.  To echo Teddy, consider tadalifil first unless you need an immediate effect.  Tadalifil/cialis 2.5 mg (or maybe 5mg also) is considered a daily dose and is longer acting than viagra.  The 5mg tadalifil tablets can be broken in half.  The 2.5mg tablets are more expensive than the 5mg and more difficult to find.  Plenty of places to order online.  Lots of late night tv commercials for mail order sources in the US too.

Tadalafil can have a minuscule effect to lower blood pressure but it is only 1 - 2 points and this does not occur for everyone and it does not occur for an entire 24 hour period if it occurs, iirc.