Ali A R Aldallal

6 Questions 162 Answers 0 Followers

Questions related from Ali A R Aldallal

What is drug automatism?

This side effect occurs usually with administration of Barbiturates.your comments pleease

27 December 2015 5,200 7 View

What are the disadvantages of beta blockers which have Intrinsic sympathomimetic activity in their clinical uses?

Intrinsic sympathomimetic activity is used particularly with beta blockers that can show both agonism and antagonism at a given beta receptor, depending on the concentration of the agent (beta...

14 December 2015 4,128 5 View

Isoprenaline or orciprenaline may be used for the temporary treatment of partial or complete AV block, which one is the best?

Heart block is an abnormal heart rhythm where the heart beats too slowly (bradycardia). In this condition, the electrical signals that tell the heart to contract are partially or totally blocked...

13 December 2015 5,474 3 View

How can Neostigmine act as partial agonist on motor endplates?

Neostigmine is a synthetic quarternary ammonium compound, similar to physostigmine and rapid onset of action and can inhibit both true and pseudo-cholinesterases.

16 November 2015 5,917 6 View

Why is the onset of local anesthetic delayed or even prevented when pH of media decreased like in site of infection?

Most local anaesthetics are weak bases, with a pKa between 8 and 9, so that they are mainly but not completely ionised at physiological pH.your comments

14 November 2015 9,640 6 View

How can I calculate LD50 of a substance?

LD50 is an important factor for determination the toxicity of any substance.

10 September 2015 9,968 11 View