Reduction of Nitriles & Amides

$$\text{R--C}\equiv\text{N} \xrightarrow{\text{LiAlH}_4 \quad \text{or} \quad \text{Na / C}_2\text{H}_5\text{OH} \text{ (Mendius Reduction)}} \text{R--CH}_2\text{--NH}_2$$

$$\text{R--CONH}_2 \xrightarrow{1) \, \text{LiAlH}_4 / \text{Ether} \quad 2) \, \text{H}_2\text{O}} \text{R--CH}_2\text{--NH}_2$$