| drugs | effect on | comment | uses |
| colinidine (catapress) | a2 ++ | function of a2 1-control release of NE (inhibit) > no interaction a1-NE > no vasoconstrictor 2-+ a2 receptor in hypothalamus (-) sym activity > vasodilatation | lower bl. Pressure |
| guanfacin (estalic) | |||
| epinephrine | a1++,a2++ ,B1++ ,B2++ ,B3+ | 1-dilation of B2 receptor > Bronchial muscle >PC injection in Bronchial asthma (if IV or IM > will + bl.pr & H.R 2-effect of B1 in cardiac arrest + H.R (intracardial injection of adrenaline 3-Anaphylactic shock B1& B2 *a- has no use except in vasoconstriction of bleeding of bl. v in nose (not used now) *B3 (unknown function) | 1-Bronchial asthma 2- cardiac arrest 3-Anaphylactic shock |
| NE | a1+++ ,a2+++,B1++,B3++ | more a stimulent (vasoconstriction :+bl.pr but give bradycardia as B1 (-) H.R unlike epinephrine B1 + H.R ,not used now in medicine except NE infusion (long surgeries) , | |
| isoprenaline | B1+++,B2+++,B3+ | B1> + H.R B2 >+of B2 receptor in brochi & bronchiols , *disadv : it has effect on heart due to effect of B! so it not used now | bronchial asthma |
| Albuterol (salbutamol , Ventolin) | B2+++ | affect only on B2 so no bad effects on heart (Formoterol >long duration) | bronchial asthma |
| Terbutaline (Bricanyl) | |||
| Pirbuterol (Maxair) | |||
| Formoterol (Foradil) | |||
| Fenoterol (Berotec) | |||
| Dopamine | a1+,B1+ ,D1,D2 | *not used now *disadv :can cause constriction in bl.vessels | cardiogenic shock (-) perfusion of tissue by blood |
| Dobutamine | B1+++,B2+,D1,D2 | stimulation of heart without affecting bl vessels (sudden vasoconst. As response to (-) in bl.pr | |
| phenyl ephrine (Neosynephrine) | a1++ | *a- effect only * if glucoma (-) production of aq. Humour | 1-glucoma (not common) 2-nasal decongistant |
| Naphazoline | nasal decongestant | ||
| Xylometazolene HCl (Otrivin) | |||
| Apracoline | a2++ | glucoma | |
| Ritodrine (Yatopar) | B2++ | relaxation of uterine muscles | premature labor |